Dr Mel Siff Updates us on L-Glutamine and Performance

18 Jan

Dr Mel Siff Updates us on L-Glutamine and Performance

Author: Dr Mel Siff Blog // Category: Dr Siff on Nutrition

Here is some information from a NSCA publication, which relates directly to
our recent discussion on the use of L-glutamine as a training supplement:

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Glutamine and Weightlifting Performance

Antonio, J., Sanders, M., Kalman, D., Woodgate, D. and C. Street. The Effects
of High Dose Glutamine Ingestion on Weightlifting Performance. Journal of
Strength and Conditioning Research 16(1):157-160. 2002.

Researchers at the University of Delaware investigated the effects of a high
dose of glutamine on weightlifting performance. Results showed that
short-term ingestion does not enhance weightlifting performance in
resistance-trained men.

The length of the study was 3 weeks and six trained volunteers participated.
They had their bodyweight, height and body fat initially determined. The
exercises used where the leg press at 200% of their bodyweight and bench
press at 100% of bodyweight. After a prescribed warm-up both exercises were
completed until momentary muscular failure.

The study design was a double blind, placebo controlled and crossed over.
Subjects were told not to alter their dietary habits for the 3 weeks and
repeated the testing after this time. One hour before testing the amount of
glutamine ingested with a calorie-free fruit juice was 0.3 g per kilogram
bodyweight. After assignment to each group there were no difference found in
the average number of maximal of reps performed for each group.

Researchers concluded, “Glutamine does not have ergogenic properties when
taken orally (0.3 g per kilogram) 1 hour before resistance exercise.” [i.e.
30gm daily for a 220lb athlete]

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Dr Mel Siff
Denver, USA
http://groups.yahoo.com/group/Supertraining/

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