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The rate of muscle temperature increase during acute whole-body vibration exercise

Cochrane, Darryl J. and Stannard, Stephen R. and Sargeant, Anthony J. and Rittweger, Joern (2008) The rate of muscle temperature increase during acute whole-body vibration exercise. European Journal of Applied Physiology, 103 (4). pp. 441-448. ISSN 1439-6327

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Abstract

This study compared the rate of muscle temperature (T m) increase during acute whole-body vibration (WBV), to that of stationary cycling and passive warm-up. Additionally we wanted to determine if the purported increase in counter-movement jump and peak power cycling from acute WBV could be explained by changes in muscle temperature. Eight active participants volunteered for the study, which involved a rest period of 30 min to collect baseline measures of muscle, core, skin temperature, heart rate (HR), and thermal leg sensation (TLS), which was followed by three vertical jumps and 5 s maximal cycle performance test. A second rest period of 40 min was enforced followed by the intervention and performance tests. The change in T m elicited during cycling was matched in the hot bath and WBV interventions. Therefore cycling was performed first, proceeded by, in a random order of hot bath and acute WBV. The rate of T m was significantly greater (P < 0.001) during acute WBV (0.30°C min−1) compared to cycle (0.15°C min−1) and hot bath (0.09°C min−1) however there was no difference between the cycle and hot bath, and the metabolic rate was the same in cycling and WBV (19 mL kg−1 min−1). All three interventions showed a significant (P < 0.001) increase in countermovement jump peak power and height. For the 5 s maximal cycle test (MIC) there were no significant differences in peak power between the three interventions. In conclusion, acute WBV elevates T m more quickly than traditional forms of cycling and passive warm-up. Given that all three warm-up methods yielded the same increase in peak power output, we propose that the main effect is caused by the increase in T m.

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