Contractile behavior of the gastrocnemius medialis muscle during running in simulated hypogravity
Journal article
Richter, C., Braunstein, B., Staeudle, B., Attias, J., Suess, A., Weber, T., Mileva, K., Rittweger, J., Green, D.A. and Albracht, K. (2021). Contractile behavior of the gastrocnemius medialis muscle during running in simulated hypogravity. NPJ microgravity. 7 (32), pp. 1-8. https://doi.org/10.1038/s41526-021-00155-7
Authors | Richter, C., Braunstein, B., Staeudle, B., Attias, J., Suess, A., Weber, T., Mileva, K., Rittweger, J., Green, D.A. and Albracht, K. |
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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 lengths at simulated 0.7 g appear to be the result of lower muscular and gravitational forces acting on it, increased fascicle lengths and decreased velocities could not be anticipated, but may inform the development of optimized running training in hypogravity. However, whether the alterations in contractile behavior precipitate musculoskeletal degeneration |
Year | 2021 |
Journal | NPJ microgravity |
Journal citation | 7 (32), pp. 1-8 |
Publisher | Nature Research (part of Springer Nature) |
Digital Object Identifier (DOI) | https://doi.org/10.1038/s41526-021-00155-7 |
Web address (URL) | https://www.nature.com/articles/s41526-021-00155-7 |
Publication dates | |
09 Aug 2021 | |
Publication process dates | |
Accepted | 11 Jun 2021 |
Deposited | 10 Sep 2021 |
Publisher's version | License File Access Level Open |
Supplemental file | License File description Supplementary Reference File Access Level Open |
Supplemental file | License File description Reporting Summary File Access Level Open |
Additional information | This study was supported with funding from the ESA Space Medicine Team (HRE-OM) of the European Astronaut Centre in Cologne, Germany, and the University of Applied Science Aachen obtained funding from the Federal Ministry for Economic Affairs and Energy (50WB1728). ESA provided the VTF used in this study. |
https://openresearch.lsbu.ac.uk/item/8xx21
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Publisher's version
s41526-021-00155-7.pdf | ||
License: CC BY 4.0 | ||
File access level: Open |
Supplemental file
41526_2021_155_MOESM1_ESM.pdf | ||
License: CC BY 4.0 | ||
File access level: Open |
41526_2021_155_MOESM2_ESM.pdf | ||
License: CC BY 4.0 | ||
File access level: Open |
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