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Effects of knee extension with different speeds of movement on muscle and cerebral oxygenation.

Damiano Formenti | David Perpetuini | Pierpaolo Iodice | Daniela Cardone | Giovanni Michielon | Raffaele Scurati | Giampietro Alberti | Arcangelo Merla
PeerJ | 2018

One of the mechanisms responsible for enhancing muscular hypertrophy is the high metabolic stress associated with a reduced muscular oxygenation occurring during exercise, which can be achieved by reducing the speed of movement. Studies have tested that lowered muscle oxygenation artificially induced by an inflatable cuff, could provoke changes in prefrontal cortex oxygenation, hence, to central fatigue. It was hypothesized that (1) exercising with a slow speed of movement would result in greater increase in cerebral and greater decrease in muscle oxygenation compared with exercises of faster speed and (2) the amount of oxygenation increase in the ipsilateral prefrontal cortex would be lower than the contralateral one.

Pubmed ID: 30310747

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Data analytics software to compute statistical power analyses for many commonly used statistical tests in social and behavioral research. It can also be used to compute effect sizes and to graphically display the results of power analyses.

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