Are training velocity and movement pattern important determinants of muscular rate of force development enhancement?
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Marshall et al. (2011) recently published the results of a comprehensive strength training study investigating the effect of the number of sets used in each training session on muscle function, hypertrophy and activation [assessed by electromyography (EMG)] in men with previous weight training experience [mean squat lift load = 159.9 kg (1.9 × body mass)]. Squat lift training was performed at 80% of 1 RM to exhaustion twice weekly for 6 weeks, then a combination of heavier (4–12 RM) and lighter, explosive (e.g. jump squat) exercises were performed for 4 weeks. The results were very interesting, revealing that the performance of eight sets of exercises was superior to one and four sets for muscle strength improvement in their cohort.
One intriguing result was that the rate of force development (RFD), measured during an isometric knee extension test, did not improve with training despite there being a small increase in the rate of muscle activation (measured as the rate of integrated EMG...
KeywordsTraining Exercise Strength Training Isometric Knee Extension Isometric Test Isometric Training
Conflict of interest
None to declare.
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