Johnson, K. D., Smodic, B., & Hill, R. (1997). The effects of creatine monohydrate supplementation on muscular power and work. Medicine and Science in Sports and Exercise, 29(5), Supplement abstract 1431.

Ss (M+F = 18) were divided into two equal groups, one ingesting creatine monhydrate (20 gm/day for six days) and the other a placebo. Prior to supplementation, all Ss performed a concentric/eccentric maximal power output isokinetic test on knee extensors of the dominant leg. A similar bilateral test to exhaustion was also performed after the supplementation period.

The creatine supplementation group improved in the measures of work and power whereas the placebo group did not.

Implication. Creatine supplementation improved performance on a muscular power and work test involving a moderately slow contraction rate.

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