Independence of force velocity relationship of skeletal muscles to denervation at higher temperatures

ABSTRACT

Effect of chronic denervation and temperature was studied on the force velocity relationship of rat diaphragm muscle. The muscles were denervated for 15 - 20 days and force of contraction and velocity of shortening were calculated according to Hill [1938] using isotonic contraction data. The results showed that the force velocity relationships were not altered at 35°C to 25°C. However, a change in this parameter was observed in the denervated muscles at 15°C. It is suggested that the velocity of shortening is independent of changes in the series elasticity of the denervated muscle at higher temperatures