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Old 02-20-2008, 08:45 PM   #1
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Arrow Effect of carbohydrate-protein supplement timing on acute exercise-induced muscle dam
Interesting...


Quote:
Research article
Effect of carbohydrate-protein supplement timing on acute exercise-induced muscle damage

James P White email, Jacob M Wilson email, Krista G Austin email, Beau K Greer email, Noah St. John email and Lynn B Panton email

Journal of the International Society of Sports Nutrition 2008, 5:5doi:10.1186/1550-2783-5-5
Published: 19 February 2008
Abstract (provisional)

Purpose: To determine if timing of a supplement would have an effect on muscle damage, function and soreness.
Methods

Twenty-seven untrained men (21+/-3 yrs) were given a supplement before or after exercise. Subjects were randomly assigned to a pre exercise (n=9), received carbohydrate/protein drink before exercise and placebo after, a post exercise (n=9), received placebo before exercise and carbohydrate/protein drink after, or a control group (n=9), received placebo before and after exercise. Subjects performed 50 eccentric quadriceps contractions on an isokinetic dynamometer. Tests for creatine kinase (CK), maximal voluntary contraction (MVC) and muscle soreness were recorded before exercise and at six, 24, 48, 72, and 96h post exercise. Repeated measures ANOVA were used to analyze data.
Results

There were no group by time interactions however, CK significantly increased for all groups when compared to pre exercise (101+/-43U/L) reaching a peak at 48h (661+/-1178U/L). MVC was significantly reduced at 6h by 31.4+/-14.0%. Muscle soreness was also significantly increased from pre exercise peaking at 48h.
Conclusions

Eccentric exercise caused significant muscle damage, loss of strength, and soreness; however timing of ingestion of carbohydrate/protein supplement had no effect.
Old 02-20-2008, 08:50 PM   #2
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Interesting... I dont know if i agree with it becuase I have read so many things contradicting it! But great find travis! what are your thoughts on the article?
Old 02-20-2008, 08:55 PM   #3
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Quote:
Originally Posted by growstrong View Post
Interesting... I dont know if i agree with it becuase I have read so many things contradicting it! But great find travis! what are your thoughts on the article?
Yeah its difficult to say based on that alone. Limited info there as they dont specify a carb type or protein type. It would be nice to hear some other opinions. Honestly I dont notice much from carbs pwo....maybe some fat gain.

I got this from the following site...pretty cool site though there is a bunch of stuff on there and I usually post anything that catches my eye:

Journal of the International Society of Sports Nutrition | Home page
Old 02-20-2008, 08:58 PM   #4
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yea I dont know i understand your comment about possible fat gains but I always seem to recover better with carbs in my post workout shake/meal... good to point out, like you said, very limited info in the study. good find
Old 02-21-2008, 08:12 AM   #5
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A lot seems to not be covered there, but hey, decent article, decent read
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