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Gastrocnemius medialis contractile behavior during running differs between simulated Lunar and Martian gravities

Richter, Charlotte and Braunstein, Bjoern and Staeudle, Benjamin and Attias, Julia and Suess, Alexander and Weber, Tobias and Mileva, Katya N. and Rittweger, Jörn and Green, David A. and Albracht, Kirsten (2021) Gastrocnemius medialis contractile behavior during running differs between simulated Lunar and Martian gravities. Scientific Reports, 11 (1), p. 22555. Nature Publishing Group. doi: 10.1038/s41598-021-00527-9. ISSN 2045-2322.

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Official URL: http://dx.doi.org/10.1038/s41598-021-00527-9

Abstract

The international partnership of space agencies has agreed to proceed forward to the Moon sustainably. Activities on the Lunar surface (0.16 g) will allow crewmembers to advance the exploration skills needed when expanding human presence to Mars (0.38 g). Whilst data from actual hypogravity activities are limited to the Apollo missions, simulation studies have indicated that ground reaction forces, mechanical work, muscle activation, and joint angles decrease with declining gravity level. However, these alterations in locomotion biomechanics do not necessarily scale to the gravity level, the reduction in gastrocnemius medialis activation even appears to level off around 0.2 g, while muscle activation pattern remains similar. Thus, it is difficult to predict whether gastrocnemius medialis contractile behavior during running on Moon will basically be the same as on Mars. Therefore, this study investigated lower limb joint kinematics and gastrocnemius medialis behavior during running at 1 g, simulated Martian gravity, and simulated Lunar gravity on the vertical treadmill facility. The results indicate that hypogravity-induced alterations in joint kinematics and contractile behavior still persist between simulated running on the Moon and Mars. This contrasts with the concept of a ceiling effect and should be carefully considered when evaluating exercise prescriptions and the transferability of locomotion practiced in Lunar gravity to Martian gravity.

Item URL in elib:https://elib.dlr.de/146377/
Document Type:Article
Title:Gastrocnemius medialis contractile behavior during running differs between simulated Lunar and Martian gravities
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Richter, Charlottecr.publications (at) planet3.deUNSPECIFIED
Braunstein, BjoernUNSPECIFIEDUNSPECIFIED
Staeudle, BenjaminUNSPECIFIEDUNSPECIFIED
Attias, JuliaUNSPECIFIEDUNSPECIFIED
Suess, AlexanderUNSPECIFIEDUNSPECIFIED
Weber, TobiasEuropean Astronaut Centre (EAC), European Space Agency, Space Medicine Team (HRE-OM), Cologne, Germany and KBR GmbH, Cologne, GermanyUNSPECIFIED
Mileva, Katya N.UNSPECIFIEDUNSPECIFIED
Rittweger, JörnJoern.Rittweger (at) dlr.dehttps://orcid.org/0000-0002-2223-8963
Green, David A.UNSPECIFIEDUNSPECIFIED
Albracht, KirstenUNSPECIFIEDhttps://orcid.org/0000-0002-4271-2511
Date:19 November 2021
Journal or Publication Title:Scientific Reports
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:11
DOI :10.1038/s41598-021-00527-9
Page Range:p. 22555
Publisher:Nature Publishing Group
ISSN:2045-2322
Status:Published
Keywords:Lunar surface,hypogravity activities, muscle activation, gastrocnemius medialis, contractile behavior,
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Research under Space Conditions
DLR - Research theme (Project):R - Muscle Mechanics and Metabolism
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Muscle and Bone Metabolism
Deposited By: Schönenberg, Sandra
Deposited On:02 Dec 2021 16:02
Last Modified:03 Feb 2022 11:59

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