Tag: endurance sport

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Nutrition Performance Sports Nutrition

STRUCTURED FUELLING – FAILING TO PREPARE IS PREPARING TO FAIL

When it comes down to race preparation athletes are all about the training never the nutrition around it. It is often an after thought. However its not just nutrition in and around the training an athlete should be focussed on its also the daily nutritional intake from waking up all the way to bed time. It plays a vital roll in maintaining an energy balance, supporting the recovery process, and keeping that immune system in check.

A few weeks ago, I participated in my first race after many years in hibernation due to ongoing commitments which never afforded me the time to put in the proper preparation. But when I decide to race it’s really a test of my consistent training and I don’t race for fun. I set a goal and stick to it. This time I went for Ironman 70.3 Tiberius with the single goal of getting a category podium to qualify for world champs. I knew what I needed to do from a numbers perspective to hit the target. But aside from training numbers the nutrition had to be spot on to support the effort. Over and above the actual training my age being a tender 51 meant recovery between sessions is more challenging and so dietary changes were needed to support the increases in volume and intensity. I wont dive into the daily nutrition in this blog as its quite detailed. I will leave that for another day. The purpose of this blog is to explain the approach to race day nutrition and how I properly prepared for it. Hopefully you can take away something and use it towards your big day.

WHEN DO YOU START?
Kicking off a race day nutrition plan needs to be tried and tested in training as much as you can. This needs to start many months before the actual race. In my case it was 10 months prior to race day. A fuelling plan needs to be properly structured, and tried, tested and stuck to like glue on race day.

FIRST STEPS
The first step you need to make is to think about the disciplines of swim bike and run and in your mind put a picture together of how you want to fuel each of those three.



-SWIM

Swimming being the first discipline means a pre-race meal and possible top ups on route to the start. In my case I decided to use 32Gi Pre-Race Meal as my pre-race fuel and because it such an important part of race day I consumed it prior to all my long and hard sessions. I also ensured I consumed it prior to most of my swims to ensure my digestive system was comfortable throughout. The serving sizes varied depending on how long before a training session I consumed it.

– BIKE
Generally this is the longest leg of a triathlon and the fuelling required to hold an effort for hours means a good fuelling plan that is simple and convenient while on the go.

Often cyclists complicate bike feeding, and this is something I like to keep as simple as possible. The way to determine intake on the bike is to understand a few very important things.

1.First is how long are you planning on riding for?

2.How many calories you are wanting to take in hourly (carbs only or carbs + protein)

3.How much fluid are you planning on consuming hourly for hydration purposes (this is weather and temperature dependant with heat and or humidity which can increase fluid loss)

In my case I pegged the bike to 2h30 as a pretty good estimate based on testing and in my case I went with around 280Kcals per an hour which equates to 70gram carbohydrates per an hour. Race weight is +-66kg placing me at over 1gram carbs per kg of body weight. However, I opted to go with 32Gi Race Pro which is a carbohydrate rich drink with a protein portion. I find protein intake during a long event keeps me stable and it can mitigate the onset of gluconeogenesis which can trigger muscle fatigue. 32Gi Race Pro is a single source feed so for me it was a simple uncomplicated feed and nothing else was needed from an energy perspective. I went with the mocha flavour due to it containing caffeine. I enjoy racing on caffeine. I decided to use a 600ml bottle and test the concentrate. This meant 10 scoops of Race Pro in the bottle for a 2.5hr ride. Aside from energy we need to also think about fluid intake to remain hydrated. By placing 10 scoops of Race Pro in a 600ml bottle that has turned the drink into a hypertonic solution which will provide energy, but it is not possible to hydrate. So, to manage this I placed an 800ml bottle of 32Gi Hydrate on the bike for hydration purposes. Optimal hydration is around 80% of lost fluid in the form of sweat. How do I know this number? I weigh myself before and after training sessions to determin weight loss which equates to fluid loss. During testing all went very well and I found my digestive system tolerated everything very well. The way I fed was alternating sips of energy and hydration spaced around 10min apart meaning Race Pro intake 3 times per an hour with fluid intake in between as needed. As we moved towards much hotter weather I realised that my fluid intake was not sufficient and that my sodium intake needed to be upped a little more. This led to a slight modification. Instead of 10 scoops in the 600ml bottle I placed 4 scoops in there to keep the solution isotonic (hydrates and provides energy with a more even pull through) and then I used a soft 300ml squeeze bottle which I placed the concentrate in, and carried that in my suite pocket for easy access. I then increased my Hydrate intake to 1.5 tablets in the hydration bottle so that I could get in around +-750mg sodium per an hour.
This worked amazingly well and on all training rides energy levels as well digestive comfort was spot on. I just needed to do one more test and this was on a 90km simulation which I did around 6 weeks out from race day. I woke up ate my 32Gi Pre-Race Meal as planned, pre-hydrated a little and then went out for a hard effort on the bike with my set fuelling strategy. I completed the course in 2h27 and the fuelling was perfect. These kind of tests demonstrate not just the level of fitness you at but more importantly the fuel required to achieve that effort was correct. It takes the stress off having to worry about any changes or adjustments. When it works bank it and take it to race day with a smile.

Run
The run leg is often where athletes can make or break their race, and this is determined by how well they fuelled on the bike leg and then how they continue to fuel through the run leg. A lot of triathletes test their fuelling on the bike and that is all then very often decide to rely on the course fuel for the rest of their race. I advocate never to rely on race course nutrition. You just do not know what you are getting from a dilution factor and that everything will go smoothly on the day. At Ironman Tiberius which was also Middle Eastern Championships 32Gi was the official nutrition partner. I remember going down the run course and being offered 32Gi products at the aid station by an athlete volunteering who knew me well. I refused the feed and kept going. He was a little in shock that I didn’t take my own fuel off the course. I explained to him afterwards when you go to battle take your own weapons that way you know they will work. The run course fuel was not my chosen fuel in training. My Run fuel was simple another soft squeeze bottles this time a 250ml hydra pack with a 32Gi Race Pro concentrate. All I needed in addition was water on the course and nothing else. Again, during training, I would run with the pack in my tri suite to get used to the feel and to ensure it worked well for me. I also did testers using longer harder efforts or brick sessions to test the nutrition worked well. Once I had tested dozens of times and was confident in the fuelling, I banked it.

ADDITIONAL CONSIDERATIONS
The one thing I have not spoke about which is vital in any triathlon is always to be prepared for anything. In this case often full distances allow special need bags for those that want some insurance. In my case the transition zone becomes very important.
On race morning I place two extra bottles in the bike and run bags one is a hydration bottle which is just water and 32Gi Hydrate and the other is a 250ml bottle of Race Pro with some 32Gi G-Shot’s (caffeine shots). These bottles are there in case I need to top up on energy or hydrate between the different legs of the race. The caffeine is something I take in prior to the race start and a just in case between legs.  

In my case our event started way over an hour after transition closed and I needed to use the time wisely to keep myself topped up. I sipped on Race Pro prior to the start of the event.

PLANNED NUTRITION
Below is exactly what went to the race course

WHAT ACTUALLY HAPPENED
As they say if you fail to prepare then prepare to fail. As much as we watched the weather and had an idea of conditions, race day threw us a nice curve ball. At 4am the rain came down and a hard the wind picked up. This was going to be a tough day out for most of the field. The cooler conditions and the rain made for slight changes in my nutritional strategy. What happens when temps drop is fluid loss is not as high and so I dropped my sodium down to +-500mg an hour instead of the 750mg planned. I also decided to start the feed from the concentrated squeeze bottle in order to allow the body to hit peak temperatures to keep fluid intake nominal and not over do it early on. Later when my fluid loss was slightly higher I would switch to more fluid with the small Race Pro bottle in the bottle cage. Minor adjustments to an already tried and tested plan.

THE END RESULT
Physically it wasn’t my best day out due to a number of reasons but I am never one for excuses and regardless we soldier on. Regardless of how I felt my race times were in line for a tough day out. The nutrition was perfect down to the red carpet and I never felt any discomfort or lack of energy.

Although I wanted the top step I had to settle for second place. My podium goal achieved and that is what I set out to do from the day I decided to enter the race.

The point of this blog is really to stress the importance of proper structure not just in training but in the nutrition in and around the training. There is no ways you can reach your true potential or push any hard efforts without a tried and tested nutrition and hydration strategy.

Below is a how I structured my race day nutrition. I know some of you have never truly given the nutrition much in-depth thought and many just thumb suck their way through. But you ask any professional or elite athlete about their intake during an event they will break it down into the finest of details because they know it’s the difference between a win a loss and a hard or smoother day out.

Hopefully you learned something from this approach above and will give your nutrition some proper thought before your big day.

Yours in health always

M

Categories
Nutrition

INTERMITTENT FASTING & THE ENDURANCE ATHLETE

Intermittent fasting has certainly come to the forefront over the past few years and more and more I am getting asked by endurance athletes whether I think intermittent fasting is a good idea?

The question I throw back in return is why do you want to do intermittent fasting? Mostly I hear endurance athletes telling me that they want to lose weight, lean out or become more fat efficient athletes. I guess the big question is what is your actual goal? Are you trying to lose weight? Are you trying to improve your previous best marathon or Ironman time or are you just doing it for health reasons.

Firstly intermittent fasting is a form of calorie restriction, correct? So if you can restrict calories by fasting then why can’t you restrict calories by eating correctly?
When you place your body into a fasted state you begin playing with hormones specifically leptin and ghrelin. The inability to balance these hormones properly due to either over eating or fasting can cause roller coaster effects which in the end do not land up serving the correct purpose.

The main question though is as an endurance athlete why would you even consider fasting?

Weight loss comes from eating correctly meaning a calorie restricted diet and proper macronutrient intake to support you unique requirements. This could be fat loss, muscle gain or maintenance. However as an endurance athlete what about energy, immunity, recovery and performance. Intermittent fasting will not support that at all. Actually quite the opposite it will hamper the recovery process, limit your energy levels and place your immune system under stress.

Let me further explain so that you fully understand the consequences of intermittent fasting while trying to be the best possible healthy endurance athlete.

RECOVERY
When it comes to recovery there are three main aspects that I look at and these are:

Rehydration
Muscle Protein Synthesis
Glycogen Restoration and blood sugar stabilization

If an athlete does intermittent fasting then rehydration and adequate fluid intake will not be an issue. The main issues will arise when it comes to muscle protein synthesis and glycogen replenishment. Adequate protein intake for an endurance athlete is important for recovery. Generally I work on around 1.4g – 1.7g of protein per a kilogram of body weight. This will depend on the athletes goals and training. Strength work and developing more lean muscle will require a higher protein intake while maintenance and repair will be on the lower side. Take a 70kg athlete who is training on average 90min a day. His required protein intake would be around 100-120g of protein per a day. This is in animal nutrition terms 4-5 chicken breasts or plant terms 2-3 cups of raw chickpeas. That is quite a lot of food. If the fasting window is quite long it means squeezing this protein intake into a small amount of time. However as we well know when it comes down to protein the human body is only capable of processing and absorbing a certain amount of protein every +-3hrs. This is generally in the region of +- 8-10 grams per hour. So its not possible to squash large protein portions into less meals and expect the correct portion amount for proper muscle protein synthesis to take place. Actually the opposite over eating protein ultimately causes a rise in blood sugar and that can easily lead to weight gain. We also know that consuming a protein with a carbohydrate post exercise up-regulates amino acid uptake specifically leucine which is a trigger for muscle protein synthesis.

What also allows for proper muscle protein synthesis is a positive nitrogen balance. Nitrogen is the most crucial component of amino acids, which are the building blocks of protein. What this means is that if you are fasting the amount of nitrogen excreted from the body is greater than the amount of nitrogen ingested and there is no repair work taking place actually the opposite. So you are actually not recovering and triggering decent training adaptations.

EATING FOR ENERGY
The next aspect I want to look at is the energy system our primary fuel tanks being glycogen and fat. Glycogen is our rocket fuel and used at higher intensities while in lower aerobic zones fat becomes the fuel of choice.
A hard workout where glycogen depletion takes place will require carbohydrate intake post exercise to rapidly start the glycogen replenishment process and stabilise blood sugar. Extending the fasted period a few hours post exercise will delay this from happening and can lead to fatigue. This will also hamper back to back sessions. Then when it does become time to break the fast how do you know how much to consume in the form of carbohydrates and protein. If you do not ensure proper glycogen replenishment and stabilisation without triggering a roller coaster ride you will generate the the opposite effect from fat burn to fat gain by overeating.

When it comes down to the main energy system, carbohydrates are without a doubt our rocket fuel. If you are going to be doing an FTP (Functional Threshold Power) test or an interval or track session. Then how can you expect to achieve the best possible numbers without fuelling the session properly. Being able to push those sessions to the best possible effort is what ultimately will lead to better gains, as well as more fat burning post exercise by elevating the metabolic rate that much more. It has been scientifically proven many times over that a fuelled session will give better performance numbers.

When it boils down to performance gains and being a fitter faster and stronger athlete then you need to fuel your effort.
Fuelling during an exercise session or eating post exercise recovery meals is not the reason endurance athletes are overweight. Weight gain comes with overeating and inadequate macronutrient meal blends.

The Fat Efficient Athlete
In order to become a fat efficient athlete intermittent fasting is not required. Fasted training is a good way of developing this, but that is completely different from intermittent fasting. A fasted session does require a recovery meal post exercise and the volume and type of meal will be determined by the duration and intensity of the exercise session. Failing to recover from an exercise session is without a doubt failing the session itself.

To summarise my views on intermittent fasting and endurance sport. They do not go hand in hand. Endurance sport replaces a large amount of physical stress on the body. This impacts the musculoskeletal system, the immune system and energy system. The athletes body requires nutrients to fuel, repair and fortify it constantly. Failing to give the body what it needs will ultimately lead to a lack of performance and potentially illness and injury.
If you want to perform, lean out and get your own resilient Lamborghini engine and body then learn how to eat properly and avoid short cuts which don’t benefit that goal. If you are only trying to lose weight or have a medical condition which requires a calorie restricted diet then intermittent fasting can play a roll. However if you are an athlete intent on being the best version of yourself then get your nutrition right and stop playing games.

Mark Wolff is a certified exercise & sports nutritionist, endurance nutrition and physiology expert with over 20 years experience. An endurance multi-sport athlete with a running, triathlon, mountain biking and weight lifting background, he works extensively with professional and amateur athletes in a variety of sports disciplines as well as those just wanting to change their lifestyles. He firmly believes that a person can only reach their full potential when their health and nutrition is given the proper focus. Mark’s focus on nutrition and physiology is not just on training and racing, but he places major emphasis on recovery, immune system health, emotional stability, stress management and performance. Mark is co-founder of 32Gi, a sports nutrition company, focused mainly on health and endurance nutrition. He is also co-founder of Rapid Recover focused on pneumatic compression equipment to improve circulation for recovery and health.

Categories
Nutrition

RECOVER PROPERLY OR BREAK

Proper recovery nutrition is one of the most misunderstood aspects of any sport especially endurance. When it comes down to it, if you fail to recover properly then you have failed to make the proper gains from your training session. You will have also set yourself up for a domino effect of fatigue and injury risk and your ability to meet your goals in the next workout sessions. Not only is it about performance gains, but even more importantly immune system strength and overall health. Proper recovery from exercise is something that needs to be perfected and nailed every single time.

In this blog I am going to explain the simple process of how to tackle your recovery nutrition and to give it the correct focus it constantly needs.

To begin we need to understand that a recovery meal does not just consist of a meal post exercise with carbohydrates, proteins and fats. When it comes down to it there are many different opinions on where the focus should be. Strength athletes focus on protein, endurance athletes love their carbs and the weight conscious tend to go for the higher fat options. However to be pretty straightforward none of them are correct in their thinking. I will provide some clarity below.

Lets begin with the actual training session. In terms of duration and intensity each session will vary from the next. Some days are short recovery or low intensity sessions. Some days are longer duration, higher intensity or strength sessions. This means that each day the body will go through a different metabolic process of fuel tank usage and muscle engagement. There will be varying stresses placed on it and each will have different requirements when it comes to proper recovery.

Taking a look at the the human fuel tanks being primarily glycogen and fat each will have differing burn rates through a session. A higher intensity session will see a greater percentage depletion of glycogen than a shorter low intensity session. While the longer sessions even if a lower to medium intensity will tend to still dip into both fuel tanks due to cardiac drift of effort over time and higher calorie burn. A while back I created a nice little video explaining the fuel tank usage to make it simple to understand just click here for viewing.

In summary glycogen are your carbohydrate stores and are primarily used under higher intensity exercise while fat is mainly used as a source of fuel at lower intensity exercise. During exercise the body moves through varying rate of intensities and a combination of both fuel sources are used depending on the duration and intensity. There is another fuel tank which we would not want to use and that is protein. Yes protein can also be broken down into fuel but generally that is over very long hard endurance sessions. It is a fuel source we do not want to use and should be mitigated by proper fuelling during exercise. However for recovery it can help determine nutrition options post-exercise. As far as strength training goes, yes, more muscle damage is generally done in a strength session and mostly the energy system utilised for strength is ATP-PC ( adenosine triphosphate – phosphocreatine ) system, especially with explosiveness and this is combined with aerobic function. ATP-PC is short lived energy only lasting seconds but it can definitely equate to fatigue. So recovery from strength sessions is just as crucial as endurance exercise.

Now that we have an understanding of how the body is impacted from an energy system and stress perspective, it should make sense that in order to adapt properly and train again we would need to recover properly from that session.

The approach for proper recovery is quite simple and needs to broken into various steps. Once you understand this it will be easy to create your own personal recovery strategy day after day.

Let’s begin……………………………..

Step 1: How Long was your Training Session?
Keeping this simple I break it down into a short, medium or long session. Meaning the following
Short < 60 Minutes
Medium < 2.5 Hours
Long > 3 Hours

The duration of your session will ultimately determine the size and number of recovery meals to properly benefit from your training session. As a simple example consuming a large calorie meal after a short 60 minute session is an over kill, while under consuming after a long session will leave you feeling fatigued and hungry later on. Lets continue and I will fit the puzzle pieces together further down.

Step 2: How Intense was your Training Session?
Did you keep your heart rate low and steady for a short session or did you do an interval or tempo session creating a fair amount of effort. Remember that a low intensity session means a higher fat burn lower glycogen depletion session. While a high intensity session means higher glycogen depletion. The percentage of fuel tank usage will relate back to the composition of your meal. As a simple example; a recovery session will mean a low carb recovery meal, while a high intensity session means more glycogen (carbohydrate fuel) depletion, which would equate to a higher carbohydrate meal post-exercise to ensure replenishment of the glycogen fuel tank.

Step 3: How Muscularly Strenuous was my Session?
Protein intake in an athletes days can vary slightly. Generally I will set a target of around 1.4 grams – 1.7 grams of protein per a kilogram of body weight depending on whether the athlete is maintaining or aiming to gain more lean muscle mass. However in some cases for muscle gain and bouts of heavy strength training that amount of protein will go up to 2 grams / kilogram of body weight or more.

On a day where more muscle damage is done it would be wise to aim for a slightly higher protein intake through the day to be in a protein positive net balance to allow for proper recovery. Just remember the amount of protein per a single serving is limited in what the body can process and absorb, so its not a matter of loading protein in a single meal but more the frequency of protein intake through the day. I have written a previous blog on protein intake and it can be read by clicking here.

Now that we have those three thought steps in pace lets focus on Recovery. There are five main aspects to recovery in my mind.

  1. Sleep
  2. Rehydration
  3. Muscle Protein Synthesis
  4. Glycogen Replenishment
  5. Immune System Strength

Sleep
Probably the most crucial aspect of longevity and health is sleep. An amateur athlete is very often sleep deprived due to the early waking hours and cutting short of sleep in order to train. Throw work stress and family stress into the mix and you are heading for disaster. Do not underestimate the power of sleep. The human body repairs and restores itself during the sleep cycles. Critical hormonal release states are triggered and failure to cycle through them is damaging. It’s not just about the duration of sleep but also the quality of sleep meaning few wake cycles and some nice deep sleep cycles. I have been analysing sleeping patterns now for around 14 years and it is as clear as day that a bad nights sleep impacts performance, ability to recover as well as weakens the immune system. Give it some focus and ensure you get at least a minimum of 7 hours of good quality sleep a night, preferably 8.

Rehydration
The human body is comprised mainly of water and during exercise there is a fair amount lost in the form of sweat. The longer the session the more fluid lost. It is absolutely crucial to rehydrate during and post session to replenish lost fluid in the form of sweat. During exercise its only possible to replenish around 80% of lost fluid however post exercise its important to get right back up to a proper hydrated state. Best is to consume a hypotonic drink to maximize fluid absorption and this can be done with a product such as 32Gi Hydrate. If you want a more in-depth look at hydration then check out my blog simply hydrate.

Muscle Protein Synthesis (MPS)
Endurance as well as strength require major muscle usage to perform any given activity. Protein are the building blocks and are critical in ensuring proper muscle recovery. I come across so many athletes who under eat protein. This only leads to injury, illness and fatigue as well as failure to achieve proper training adaptations in the form of strength and fitness gains. Let me break this down a little further.

White blood cells which of course fight infections, are comprised of protein. So lack of protein equates to lower immunity. Post-exercise an athletes immune system is lowered and the risk of infection higher. Don’t under estimate this. As far as muscle protein synthesis goes protein is crucial. Especially adequate branched-chain amino acids (BCAAs) consumed of course with a complete protein. Another thing that many athletes fail to understand is there are proteins and proteins. It is important to find a complete healthy protein to get proper intake. L-Leucine is the most crucial branch chain to trigger MPS and there we would look at an intake of 2.5-3grams of L-Leucine to ensure the MPS trigger. Some protein serving sizes do not contain the correct amount and then supplementation would be advised.

Remember its not about the front label its about the actual content of the product. A protein portion post-exercise should be in the region of 20-35g depending on the weight of an individual, kind of exercise and overall protein goal for the day. Over-consumption of protein does not work due to the body not being able to process all of it, and in short it can lead to a rise in blood sugar and potential weight gain. Ensure you know your protein targets and stick to them.

Glycogen Replenishment
Glycogen – which is our carbohydrate stores – will mostly be depleted during exercise at a rate which is dependent on the duration and intensity of the session. A long hard session warrants a higher carbohydrate meal post-exercise which should be proportional to the glycogen depleted. Carbohydrates are what’s required to replenish glycogen stores. A short lower intensity session means a low carb meal. Over eat the carbs post a session which does not warrant it, and be assured you will mitigate fat burn and tend towards the gaining weight population.

Immune System Strength
Post-exercise susceptibility to illness is higher. Especially if in a contained environment like a gym where sick people sweat, train and touch everything opening endless possibilities of contact. Immunity is so crucial to any athlete especially during bouts of hard big volume sessions where the body undergoes way more stress. How does one strengthen their immune system? Well firstly a blood test to determine any insufficiency is worth it as if you are for example anaemic or have low vitamin D levels it will certainly play a role in weak immune system. That is the first step. Know your status and fortify accordingly. There is no point in dosing with vitamins and minerals if you have no idea where you are weak. 

Hydrate properly and focus on gut bacteria strength as it’s another crucial aspect of immune system strength so pre and probiotics are worth it. Cutting refined foods and focusing on nutrient dense foods will help boost immunity. A supplement like glutamine is excellent for immune system strength as well as providing alkalinity to the gut. Vitamin D not Vitamin C is the wow factor in immune system strength. Most athletes I have had blood tested tend to be low on Vitamin D levels which is the one vitamin known to provide immunity. Vitamin C is an anti-oxidant with other properties, but it has nothing on Vitamin D as far as immunity goes. 

Those are just a few examples, however its so vast and I wont go into too much detail on this as its a blog on its own for the future. But as a starting point get bloods and if you are not sure then check out my blog on bloods don’t lie.

The above is pretty self explanatory in terms of importance and focus. But I bet you are now asking for examples of post-exercise recovery meals and a little more insight on supplementation to ensure proper fast recovery and health. That is coming in my next blog :-). 

However don’t despair, in the mean time together with the 32Gi and the Rapid Recover team we put together a recovery cheat sheet which I will email to you with pleasure – all you need to do is sign up to our newsletter by subscribing to my blog – and it will be emailed off to you.

all the best

M

Mark Wolff is a certified exercise & sports nutritionist, endurance nutrition and physiology expert with over 20 years experience. An endurance multi-sport athlete with a running, triathlon, mountain biking and weight lifting background, he works extensively with professional and amateur athletes in a variety of sports disciplines as well as those just wanting to change their lifestyles. He firmly believes that a person can only reach their full potential when their health and nutrition is given the proper focus. Mark’s focus on nutrition and physiology is not just on training and racing, but he places major emphasis on recovery, immune system health, emotional stability, stress management and performance. Mark is co-founder of 32Gi, a sports nutrition company, focused mainly on health and endurance nutrition. He is also co-founder of Rapid Recover focused on pneumatic compression equipment to improve circulation for recovery and health

Categories
Health

YOU MIGHT BE FIT BUT YOUR GUT CAN LET YOU DOWN

Over the last few years I have engaged with a fair amount of athletes who constantly suffer from gut issues during exercise especially on race day. It is a very important issue to touch on and through this blog I hope to shed some light on the pitfalls of GI (gastrointestinal) distress and how to try to manage it. I myself have a very sensitive stomach and over the years have developed and followed some very key methods to keep the stomach issues a bay.

It is a fact that more runners will suffer from GI distress than cyclists. It is a much higher impact sport and the digestive system takes a bit more of a beating with the foot pounding. However that is not to say cyclists do not have their issues, they certainly do and this can be related to posture on the bike which can also add to the discomfort. Let me start by saying there is no full and sure way to completely understand exactly what your unique trigger is but there definitely are plenty of reasons as to why GI distress can occur and if properly managed they can be mitigated.

There are conditions that occur during exercise which place the digestive system under stress.
The first of course is the fact that when embarking on a training or racing session blood is required to transport oxygen to the muscles that are actively working. This pulls blood away from the digestive tracts and diverts that flow to the active muscles as well as to the surface of the skin as those vessels are required for cooling the body. This is an effect called splanchnic hypoperfusion which can lead to intestinal distress and compromise the intestinal barrier function. In short this increases intestinal permeability which means that a type of leaky gut syndrome occurs which can cause major discomfort in the form of pain, bloatedness due to excess gas as well as nausea and diarrhoea. The higher the intensity you perform at the more blood is moved to the muscles and the more sensitive the digestive system becomes.

Another aspect of GI distress is the brain gastrointestinal tract communication pathway. It is a fact that when we have digestive discomfort in any form the brain is signalled but at the same time when we have certain emotions such as nervousness, anxiety, sadness, anger or happiness our brain speaks to our gut. Without a doubt stresses can play a big role in determining how the gut bacteria behave. It is a two way communication channel and our health is very much determined by our mindset. Pre-training or racing nerves can have a major influence on how your stomach will behave on the day. I am sure many of you remember training days where you get up relaxed and off with a group of friends for a nice training session. However on race day you are up and down to the loo hoping you will make it to the start line.

Sports nutrition also plays a crucial role in that highly concentrated carbohydrates such as gels or certain drink mixes can cause digestive discomfort. Believe it or not taking a high amount of carbohydrates can upset the fluid energy balance pulling more water into the digestive system and actually increasing the risk of dehydration which will certainly upset the stomach. Feelings of nausea, irritability, stomach pain can very much be associated with a build up of glucose in the gut.

A simple example is if you consume a gel during exercise you have to take in a certain amount of water with it to ensure the dilution process is correct. Some gels are pre mixed with water but those that are not need to be diluted to reduce the risk of GI distress and onset of dehydration. So for example a gel with 20-25grams of carbohydrates in it would require approximately a fluid consumption of around 100ml per 6-10grams of carbohydrate ingestion to be on the safe side. So this means around 200 – 400ml of fluid. Quite a fair amount and this is definitely one of the major pitfalls of most athletes. The failure to understand the energy / fluid requirements to ensure a balance in the body which allows for both fuelling and hydration.

Another crucial aspect of sports nutrition is the ability to oxidize carbohydrates. Many athletes train fasted or train low and race high to improve their fat burn efficiency at higher intensities and try to gain the extra benefit of carbohydrate intake on race day. However if you do not train your gut to cope with the food intake on the day of your race you will not have the ability to properly break it down and absorb it efficiently. This places you at risk.

Finally the last trigger of course can be issues with your daily diet. I am of the firm belief that if you feel discomfort with any food then you need to eliminate it. There are however some foods that can certainly cause more discomfort than others. The top of my list is dairy for those that are lactose intolerant it is certainly one of the triggers of GI distress during exercise and best to avoid if you are not sure. Many people are fibre intolerant I personally limit fibre intake from 72hrs before any long or racing session. Fibre can cause gut havoc. High fat and protein intake before a session can also cause GI distress. They are not easily broken down and as opposed to carbohydrates and in many cases this can also be a trigger. Additionally on the nutrition side of things is the method of high FODMAP food reduction.

What are FODMAP’s?
FODMAP stands for Fermentable, Oligosacchiride, Disacchiride, Monosacchiride, and Polyols.
Developed in Australia, the FODMAP diet was developed to deal with IBS (Irritable Bowel Syndrome) fairly new to other parts of the world the diet has seen some good success in reducing the symptoms associated with irritable bowel.

How does it work?
FODMAPS are basically a group of short chain carbohydrates which occur in many foods such as wheat, dates honey and milk to name a few. These short-chain carbohydrates have been shown to increase osmotic load in the small intestine which means it will pull water into it and upset the digestive system. These food types are broken down with a fermentation process by gut bacteria which creates gas and discomfort especially in an athlete that is exercising. Best is to avoid high FODMAP foods in the week leading to a race or important training sessions in an attempt to reduce the risks of GI distress. If you suffer severely from IBS or Proctitis this could be a good direction to take.

Another important item to consider which I have not touched on yet is alcohol. As much as you want to argue with me, it causes GI disruption and can be considered another major player in causing GI distress. It also causes dehydration and we know that this is another trigger of GI distress. If I cannot convince an you to reduce or quit  then you should take jump and read a previous blog I wrote Endurance vs Alcohol. My personal opinion is that you should never have any alcohol in a race week or anywhere close to long training sessions.

So with all this in mind how do we tackle the dreaded tummy troubles that impact so many athletes across the globe.

A number of steps need to be adhered to:

No eating foods that negatively impact you
If eating any food impacts you negatively just avoid it. Identify those foods that you are emotionally attached to however cause tummy trouble, list them and avoid them. Just find a replacement there are plenty of options available.

Avoid dairy, fibre high fat and protein meals close to your important training or racing sessions.
We know these food types put more strain on the digestive system especially when under stress. So best is to avoid them to be sure. Proper experimentation will guide you, but rather start off clean and introduce to test and monitor the impact.

Train the gut
Do not just train low (low carbohydrate or fasted) you also need to train high. There is a benefit to fasted or low carbohydrate training in order to became more fat burn efficient. However failing to train the gut to adapt to fuel intake on the day will certainly cause issues. It is a fact that increasing carbohydrate intake during exercise will also allow your digestive system to become more efficient at oxidizing those carbohydrates. Make sure you are using the correct product for you and that you know exactly how to use it. You want to get the best of both worlds. Check out my previous blog So You Really Think you have Your Sports Nutrition Right?

Avoid high FODMAP foods
As mentioned above this has shown to quite successful in many that suffer from irritable bowl syndrome. Here is a link to an application which can be installed to help with food selection when it comes to FODMAP eating
FODMAP Mobile App

Avoid Alcohol
Check out my blog for a more in-depth discussion on this Click Here

During Exercise
I am a firm advocate of drip feeding during an endurance event. Taking in small amounts of carbohydrates more frequently over a longer period of time reduces the risk of GI distress caused by a glucose overload. Separate out your hydration and energy requirements and ensure there is balance. I am an advocate of mineral loading to help with fluid absorption and reduce the risks associated with dehydration which is also a major factor in GI distress. Check out my blog on Simply Hydrate if you are wanting more information on proper hydration.

Relax Relax Relax
We know so well that endurance sport is very much a mental game. As mentioned above anxiety and nervousness can absolutely trigger an irritable bowel. Find ways to calm yourself and stay relaxed. Maybe its speaking to others, or putting on your favourite playlist to shut out the world. Whatever your coping mechanism find one that works to keep you happy, content, confident and relaxed.

I hope this helps, please feel free to email me if you have any questions

all the best

M

Yours in Health and Fitness

Mark Wolff is a certified exercise & sports nutritionist, endurance nutrition and physiology expert with over 20 years experience. An endurance multi-sport athlete with a running, triathlon, mountain biking and weight lifting background, he works extensively with professional and amateur athletes in a variety of sports disciplines as well as those just wanting to change their lifestyles. He firmly believes that a person can only reach their full potential when their health and nutrition is given the proper focus. Mark’s focus on nutrition and physiology is not just on training and racing, but he places major emphasis on recovery, immune system health, emotional stability, stress management and performance. Mark is co-founder of 32Gi, a sports nutrition company, focused mainly on health and endurance nutrition. He is also co-founder of Rapid Recover focussed on pneumatic compression equipment to improve circulation for recovery and health.

 

 

Categories
Health Nutrition Training

BLOODS DON’T LIE

When it comes to endurance sports performance and health we have all been exposed to the endless attempts to find the biggest gains in improving oneself. Most athletes that approach me are looking for an improvement in performance however my biggest concern is first health. I have always said that when we place our bodies under stress its important to make sure that the body can withstand the stress. If there is an underlying condition which the athlete is not aware of the consequences can be damaging if not life threatening.

As an endurance athlete and of course a human being nothing is more paramount than my health. When it comes to the human body the more you know about your own body the far better empowered you are to make the correct decisions when it comes down to it. I am sure most of you have heard about the term biological passport. This is used to monitor elite athletes in which profiles of biological markers of doping and results of doping tests are collated over a period of time. I have my own biological passport. I have 12 years of blood markers ranging from a wide variety of testing over time. However my passport is a biological health passport not a doping passport. I use this as a baseline for a range of different markers to ensure my body is in optimal condition to be placed under stress and to be able to perform at its peak when it comes down to it. As a sports nutritionist and physiology expert there is nothing more satisfying than getting blood results finding the anomalies and then using either treatment, nutrition or supplementation to correct them and get them back into line or even fortify them. However it goes much further than this. A general doctor will look at a range of bloods which are considered to be in the “healthy” range and give you the nod. I don’t do that I look at the bloods from an athlete perspective knowing that the individual is placing the body under a huge amount of stress whether it be an ultra distance marathon or triathlon. “Healthy” ranges are just not always good enough and in endurance sport tiny deficiencies or changes can equate to feeling flat or being able to really put down the hammer down and sustain it. Bloods don’t lie they will tell a story and guide a person in the right direction. Last year an elite athlete that approached me for assistance gave me the title “the legal doper”. I wasn’t sure how to take that as the word doping has many negative connotations associated with it. But on further thought I decided that to be able to legally enhance the human body is definitely the route to go as that has a big focus on health not just performance.

So my question to you all is do you have a snap shot of your health?  By that I mean a full set of bloods and the peace of mind that you are in good working order. Secondly once the doctor tells you that you are in good working order has he or she taken into account your active lifestyle. You are not a couch potato but a Ferrari engine and there is a big difference in requirements especially when it comes down to fuelling. Haematology is a fascinating pathway where hundreds of thousands of different chemical reactions and responses happen each day to what the body is going through. I would want to make sure that what is happening inside is life extending, performance enhancing and not destructive.

I have pulled up some bloods below just to deep dive a little and explain how some dietary and supplemental changes have made a huge difference in not just mine but other athletes lives.

Below shows an endocrinology profile of an athlete where I specifically requested  folate serum, red cell as well as vitamin D. 6 months prior to this test the results were not good. Vitamin D levels were sitting at 32, which by all means is healthy according to the medical spectrum and the folate levels were a lot lower. Vitamin D is actually the one vitamin that is scientifically and medically proven to strengthen the immune system. Its also the precursor to calcium absorption which means if you are an athlete you definitely do not want it to be on the low end at all. A very strong 5000iu D3 supplement pulled it up to 54 from 32 in 6 months and then the dose was dropped down to a D3 every 3 days at which stage the levels climbed further to 60. That is nearly double where it was before.

Noticeable differences in the athlete were not even such as a cold or illness in a two year period whereas prior to this at least 2-3 antibiotic courses a year. In addition there was a drop in shin splint pain until eventually it dissipated completely and never returned. Susceptibility to stress fractures had been reduced however I do need to mention in conjunction with the D3 a good calcium was also prescribed.

Below shows the increase from 54 – 60 at which stage we toned down the Vitamin D supplementation.
Its interesting to note this is an athlete who spends a lot of time outdoors and so the thought of sunshine providing Vit D although somewhat true is not always about exposure but about creation.

Below shows an athletes iron profile. It is in the normal range but again this is a serious athlete putting in many hours of training in a week. The feelings of fatigue that he experienced can sometimes be due to what we call athletes anaemia.  I felt the levels were too low although within the normal range so supplementation was brought into the picture.

Below shows the Iron supplementation over a 3 month period pushing the levels up nicely. I need to mention this athlete is a ovo-vegetarian although levels came up nicely the supplementation continued with a drop down to one tablet every 3 days to keep them topped up. The athlete noticed increased energy, better recovery and performance benefits.

No elite athlete wants to see the below especially when aiming for a top position in a race. Low red cell, low haematocrit is not a desirable result especially knowing that you are limiting your haemoglobin production and this is so crucial for muscle and organ function. The last thing you want is limiting it especially if you are an athlete. You can also see that the iron is low and understanding haematology you should know that red blood cell, haemoglobin and iron are all interlinked.  The below shows low transferrin levels which can relate to iron binding capacity. The athlete did not have sufficient blood in the diet. Taking a look at the individuals lifestyle we discover an over trained athlete under nourished meaning absolutely poor nutrition to support the exercise volume and intensity. Multiple menstrual cycles in a month led to more blood loss than normal and major changes needed to be made to the diet to correct this.  Again Vitamin D levels could come up nicely especially since this was an athlete that suffered from numerous bone related injuries which could be a direct result of nutrient deficiency.

Below is another female athlete with dedicated 6-7 days of training combining 70-100km run weeks with strength training. Waking up daily feeling faint, dizzy and often bouts of nausea until the day she fainted and hit her head on the treadmill. The below shows clearly an iron deficiency as the cause. The inability to feel energetic, wake up fresh and be able to train with a smile on your face is not the way one would want t be feeling each day. Dragging yourself through life from day to day is terrible. It took so many weeks to convince her to get bloods done and with all the delays it set a domino affect into play leaving her to do them out of desperation. Prevention is always better than cure.

The below was sent to me after a blood test by a concerned athlete. After questioning the timing of the blood test the cause was clear that the athlete gave the blood in a completely dehydrated state. It was after a hard long run in the heat, followed by a oats breakfast and cup of coffee. This is an athlete that usually trains fasted and on that particular day he noted he felt very thirsty and battled through the heat. Then went for bloods. Pick your blood test days carefully you don’t want to skew the results.

 

I can bring up hundreds of blood results over the years where each will tell a different story. Sometimes the biggest percentage gains in sports performance need to actually start with the health aspect and only once that is solid then one can move to the next level which is proper tweaking of nutrition and natural supplementation to gain a little more. There are no quick fixes and most people I come into contact with tell me about all the wonderful and weird supplements they take to give them the edge. They have absolutely no idea what they are talking about because what they could be taking might be doing exactly the opposite and hurting their health. Know your status first then we can talk.

In conclusion, as an active person start your biological health passport, get tested fairly regularly and get an idea of your health status over time. Anomalies might come and go but at least if you have a history of what is going on inside your body you will be in a much better position to manage the risks as well as improve your health and performance goals.

 

Take care

all the best

M

Mark Wolff is a certified exercise & sports nutritionist, endurance nutrition and physiology expert with over 20 years experience. An endurance multi-sport athlete with a running, triathlon, mountain biking and weight lifting background, he works extensively with professional and amateur athletes in a variety of sports disciplines as well as those just wanting to change their lifestyles. He firmly believes that a person can only reach their full potential when their health and nutrition is given the proper focus. Mark’s focus on nutrition and physiology is not just on training and racing, but he places major emphasis on recovery, immune system health, emotional stability, stress management and performance. Mark is co-founder of 32Gi, a sports nutrition company, focused mainly on health and endurance nutrition. He is also co-founder of Rapid Recover focussed on pneumatic compression equipment to improve circulation for recovery and health.