Contractile behavior of the gastrocnemius medialis muscle during running in simulated hypogravity.

ABSTRACT: Vigorous exercise countermeasures in microgravity can largely attenuate muscular degeneration, albeit the extent of applied loading is key for the extent of muscle wasting. Running on the International Space Station is usually performed with maximum loads of 70% body weight (0.7 g). However, it has not been investigated how the reduced musculoskeletal loading affects muscle and series elastic element dynamics, and thereby force and power generation. Therefore, this study examined the effects of running on the vertical treadmill facility, a ground-based analog, at simulated 0.7 g on gastrocnemius medialis contractile behavior. The results reveal that fascicle-series elastic element behavior differs between simulated hypogravity and 1 g running. Whilst shorter peak series elastic element len

SUBMITTER: Richter C 

PROVIDER: S-EPMC8352871 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature