ACTIVATION HEAT IN MUSCLE: METHOD FOR DETERMINATION.
By varying the interval between two stimuli it is possible to measure the activation heat in a skeletal muscle twitch. The method depends upon finding a range of stimulus intervals where complete mechanical fusion exists and where there is a plateau in the heat production. At 0 degrees C, and when muscles are at normal body length, activation heat represents about 40 percent of the heat in an isometric twitch.
D000818:Animals; D001001:Anura; D006358:Hot Temperature; D009119:Muscle Contraction; D018482:Muscle, Skeletal; D009132:Muscles; D010827:Physiology; D011898:Ranidae; D012106:Research
EXPERIMENTAL LAB STUDY; FROGS; HEAT; MUSCLE CONTRACTION; PHYSIOLOGY