Day 179: Carbs or protein? Which has more benefits?

1 07 2010

A New York Times article today discussed a study, published in 2008, on how the role of protein effects cyclists in recovery from hard interval sessions.

In the study conducted by Dr. David Rowlands, a senior lecturer with the Institute of Food, Nutrition and Human Health at Massey University in New Zealand, he studied a group of male cyclists who rode two different sets of intervals until their legs ached. They were then asked to consume drinks or energy bars which contained either mostly carbs or a combination of carbs and protein.

During the second interval session Dr. Rowlands found that the men who consumed mainly protein had a 4 percent gain in overall performance (compared to the men who consumed only carbs).

In a follow-up study published in May, Dr. Rowlands repeated the exercise with female cyclists. In contrast to the men’s results, the women who consumed protein reported feeling more tired and sore during the training. Women who increased calories in addition to carbs loaded only about half as much fuel into muscles as the men did. Estrogen levels were also found to influence their metabolism.

The article makes the point that more women need to be included in exercise studies, since there is still much to be discovered when it comes to female athletes.

Today’s food journal:

Breakfast:
— Chocolate, peanut butter, banana smoothie = 385 cal.

Lunch:
— Amy’s organic mac & cheese = 410
— Snack-bag of Rold Gold pretzels = 230
— Diet Coke = 0

Dinner:
— 1 cup corn = 132
— 1 baked potato = 163
— Small glass of LF organic chocolate milk = 180

Snacks:
— Skinny Cow ice cream drumstick = 150

Life’s a journey. Enjoy the ride!

         _O
        \<,
…( ) / ( ) 

Thanks for visiting.

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