Universität zu Köln

Richter, Charlotte, Braunstein, Bjoern ORCID: 0000-0002-5173-8916, Staeudle, Benjamin, Attias, Julia, Suess, Alexander, Weber, Tobias, Mileva, Katya N., Rittweger, Joern, Green, David A. and Albracht, Kirsten ORCID: 0000-0002-4271-2511 (2021). Gastrocnemius medialis contractile behavior during running differs between simulated Lunar and Martian gravities. Sci Rep, 11 (1). BERLIN: NATURE PORTFOLIO. ISSN 2045-2322

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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 Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Richter, Charlotte UNSPECIFIED UNSPECIFIED UNSPECIFIED Braunstein, Bjoern UNSPECIFIED orcid.org/0000-0002-5173-8916 UNSPECIFIED Staeudle, Benjamin UNSPECIFIED UNSPECIFIED UNSPECIFIED Attias, Julia UNSPECIFIED UNSPECIFIED UNSPECIFIED Suess, Alexander UNSPECIFIED UNSPECIFIED UNSPECIFIED Weber, Tobias UNSPECIFIED UNSPECIFIED UNSPECIFIED Mileva, Katya N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rittweger, Joern UNSPECIFIED UNSPECIFIED UNSPECIFIED Green, David A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Albracht, Kirsten UNSPECIFIED orcid.org/0000-0002-4271-2511 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-599087
DOI:	10.1038/s41598-021-00527-9
Journal or Publication Title:	Sci Rep
Volume:	11
Number:	1
Date:	2021
Publisher:	NATURE PORTFOLIO
Place of Publication:	BERLIN
ISSN:	2045-2322
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language WEIGHT-SUPPORT; MUSCLE TENDON; LOCOMOTION; FORCE; GAIT; WALKING; MASS Multiple languages Multidisciplinary Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/59908