Refueling

In sports, there is always an emphasis on the importance of pre-workout, pre-game, and pre-race preparation. Obviously, we want our bodies to be as well equipped as possible (by sleeping, hydrating, and eating properly) to compete at the highest level against our competition. Although, I wonder if athletes understand how crucial post-workout, post-game, and post-race refueling is. After workouts and competitions it is vital that the body is replenished with the right foods and fluids in the correct way. Here are three quick tips to refueling…

1) Carbohydrate to Protein Ratio (4:1)

*Refuel with foods that are four parts carbs to one part protein. After exercise carbs can be more easily stored as recovery fuel and protein allows the body to rebuild what it loss.
*Examples include: chocolate milk, peanut butter with a banana, fruits and nuts.

2) Replace Fluids Lost

*Drinking 16-24oz of adequate fluids for every pound lost during working out. For those of you out there who don’t weigh yourself before and after your workouts… follow a simpler rule: Pee till it’s a pale yellow color (lemonade).

3) 30 Minutes

*It is key that athletes begin to refuel and rehydrate no longer than 30 minutes after working out. The longer athletes wait to refuel the longer it takes to recover. Getting something in the body ASAP after exertion will allow for increased storage.

Guest Blogger: Krista Creager, nutrition student at South Dakota State University

Chocolate Milk and the Athlete

Chocolate milk has been making headlines for some time now about it being the "athlete's drink." But do you really know why? 

Before we dive into that too much, let's review a little what happens when we exercise. In our bodies, protein is constantly being built and broken down. This is called protein turn-over. A side effect of an exercise bout is the breaking down of proteins. Exercise causes some tissue damage and requires a little repair. Not only do you need the protein, but your carbohydrate stores need to be replenished as well. This is why there is a recommendation to eat a carbohydrate/protein snack post-exercise. The term "recovery snack" makes more sense now, doesn't it?

So what makes chocolate milk so special? Cow's milk is considered to be a high-quality protein because it contains all of the essential amino acids. Essential amino acids are those that are body cannot produce and must be taken in through the diet. It also contains more carbohydrates (cho) per serving when compared to regular white milk. 

In a study led by the University of Connecticut, they examined chocolate milk consumption with endurance athletes and how it affected protein balance, glycogen, and performance. Runners were asked to complete a 45 minutes exercise. After that, each runner was given either chocolate milk (cho+pro) or a sweetened beverage (cho only). 

At the end of the study, they found that the runners who drank the chocolate milk had greater protein synthesis and less protein breakdown than those who drank the sweetened beverage. Both drinks were able to maintain glycogen (cho) storage. 

This study, along with others, show that it takes BOTH protein and carbohydrates to properly recover from exercise. Chocolate milk is a convenient (and tasty!) way to get the nutrients your body is craving. Remember- a recovery beverage should be consumed within 30 minutes of exercise to see the full effects.

Reference: 
Lunn, W. R., Pasiakos, S. M., Colletto, M. R., Karfonta, K. E., Carbone, J. W., Anderson, J. M., & Rodriguez, N. R. (2012). Chocolate milk and endurance exercise recovery: protein balance, glycogen, and performance. Medicine and Science in Sports and Exercise, 44(4), 682-691.

Recovery foods: What to choose? Review of the research.

Often people wonder if buying a commercially engineered sports food (drinks, gels, bars, etc) is better for you when compared to regular food to aid in muscle recovery from exercise. If it is packaged to say so, it must be right? 

Well some of those products do work, but they are not necessarily better. They may be convenient, but they do not contain any magic ingredients that cannot be found in foods you regularly purchase. A study was done comparing a carbohydrate-electrolyte beverage (sports drink) and a bowl of cereal with nonfat milk. The objective of the study was to determine what, if any, difference the two foods had on muscle recovery from exercise. 

This study recruited eight male and four female cyclists or triathletes. The athletes rode a bike for two hours. Immediately after the ride, a muscle biopsy was done on the subjects (ouch!). Then the subjects were given either the sports drink or the cereal with nonfat milk. They waited an hour and another muscle biopsy was done. The researchers found that both increased glycogen in the muscle, but only the cereal significantly increased muscle proteins. 

Whole foods, like the cereal and milk, are a great option for muscle recovery and are often less expensive. 

Reference:
Cereal and nonfat milk supports muscle recovery following exercise by Lynne Kammer, Zhenping Ding, Bei Wang, Daiske Hara, Yi-Hung Liao, and John L. Ivy