The effect of intramuscular temperature upon the holding time of 70% MVC handgrip contraction was studied in 12 college-age men. The intramuscular temperature was regulated by 30 minutes immersion of the forearm and hand in a waterbath at 180C, 350C, or 450C. Elevating intramuscular temperature significantly reduced the holding time duration, (25.7 ± 6.2 vis 38.3 ± 8.1, P < 0.01), while reducing the temperature had no significant effect (37.5 ± 9.4 vis 38.3 ± 8.1, N.S.).

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