Week IM-11: Nutrition, the Fourth Discipline

Last June, I set out at 7am on a Friday morning from Dublin with the aim of cycling to Clochán, on the Dingle Peninsula in Kerry – about 380Km to the south west. It was into the wind, so that made it a bit harder but the first 170Km or so went fine – it was good and sunny most of the day. It started to get tough as I was getting into Thurles, on the way to Tipparary town. I wasn’t feeling great. When I got to Tipparary, after two or three bites, I knew it wasn’t going to happen. I was too sick to eat anything that night.

This left me in somewhat of a dilemma. I wasn’t going to be able to cycle 180km without eating, especially having cycled 200 the day before.

I decided to try a new approach to breakfast. I set an alarm for 4am and had breakfast. I went back to bed then. I got up again at 5 and had another 15 minute breakfast. I repeated this 4 times and by the time 8am came around, I was flying it! I cycled through Tipp, Limerick, Cork and Kerry and had a great time on the last 30km out the Dingle Peninsula. It took 19 hours 30 minutes of cycling.

A good lesson to come out of this (apart from the joy of multiple breakfasts) is that what you eat really makes a difference to how your body performs. I put the sickness on day one down to salt imbalances – something I’m really aware of for Switzerland, where the heat is going to be a real issue. Salt and electrolyte imbalances arise because you sweat a lot while training. You then drink a lot of water, which further dilutes the remaining salt. This really only becomes an issue in exertion lasting 8 hours or more, but it becomes quite a serious issue that can essentially totally dissabilitate the body. I’ve been trying out some Isotonic drinks in training as a trial for Switzerland over the last few weeks.

I read a very good book on Sports Nutrition called Eating for Endurance. It’s a short book and I’d recommend it to anyone involved in sport. The main message of the book is that people should stick to the food pyramid. If you’re training a lot, you should eat more of the same. She asserts that supplements are mostly superfluous if you eat properly.

Some extra pieces which may be of particular use to athletes are:

• Antioxidents (which help carry away broken down material from the blood stream) found in omega 3 fish oils
• Vitimen C & E
• Glucasomine (which may help repair cartilage)
• Caffeine in small doses is known to be a performance enhancer

My daily diet consists of two breakfasts, one when I get up, one after swimming/gym. A dinner at 12:30pm. A “lunch” type meal of heavy brown bread around 3pm. Another dinner at 6pm and another lunch type meal around 9pm ,with snacks in between most meals. I try to always eat something at most every two hours. This helps keep my metabolism “fast” – able to quickly turn food into energy.

For the race itself, my current nutrition strategy is

Swim: nothing during the swim bar perhaps one or two mouth-fulls of Lake Zurich.

Bike: First 20 minutes: .5 litres water, to let everything settle down

Subsequently (7-8 hours): 100 calories every 20 minutes (200-300 cals per hour). A mix of electrolyte, energy gels and solid foods (muesli bars, bananas). Loading towards the start / middle of the bike to compensate possibly no food during run

Run: This is going to be hit and miss and in reality, my stomach will shut down at some point during the marathon. My aim is to delay this as long as possible and keep taking on salt afterwards. About 100 calories every 20 mintes – a combo of solid or liquid nutrients. Alternate electrolyte Sports Drink and Gel + Water.

This week was a rest week, so was mostly easy cycles. On Sunday, I ran the Kildare Half Marathon. This went really well and I ran it faster than I expected – 1:36:11, finishing in 127th place out of about 2000 (2 minutes behind Vinny). I was very stiff afterwards – from a mix of the fast pace and the fact that it was on concrete. It was many times harder than the 26Km run in the Pheonix Park the Monday before.

Myself, Ciarain and Vinny before the Kildare Half Marathon.