Hyperthermia reduces electromechanical delay via accelerated electrochemical processes

Hyperthermia (targeted core temperature: 38.5°C) reduces the time between gastrocnemius medialis stimulation and onset of plantar flexor force production in vivo. This reduction electromechanical delay is concomitant to an earlier motion muscle fascicle compared with thermoneutral environment. However, hyperthermia has no impact on duration transmission along aponeurosis tendon, thereby reflecting different effects heat exposure contractile elastic properties muscle-tendon unit.