The effect of actively increased muscle temperature on grip strength

On the first and last of 3 consecutive days, 10 normally active male subjects executed a series of 25 maximal grip contractions at 5 second intervals and 10 maximal contractions at 1 minute intervals. Each contraction was approximately 1 second in duration. Exercise was preceded by a 10 minute rest. An intramuscular thermocouple was inserted on the second day and remained in place for the experiment on the third day. Thermocouple insertion was followed by an immediate reactive increase in muscle temperature. Grip strength was not affected by the thermocouple. The largest strength and temperature measurements were observed coincidentally.