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Proprioceptive disturbances in weightlessness revisited

Proske, Uwe and Weber, Bernhard (2023) Proprioceptive disturbances in weightlessness revisited. npj Microgravity, 9 (1), p. 64. Nature Publishing Group. doi: 10.1038/s41526-023-00318-8. ISSN 2373-8065.

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Official URL: https://www.nature.com/articles/s41526-023-00318-8


The senses of limb position and movement become degraded in low gravity. One explanation is a gravity-dependent loss of fusimotor activity. In low gravity, position and movement sense accuracy can be recovered if elastic bands are stretched across the joint. Recent studies using instrumented joysticks have confirmed that aiming and tracking accuracy can be recovered in weightlessness by changing viscous and elastic characteristics of the joystick. It has been proposed that the muscle spindle signal, responsible for generating position sense in the mid-range of joint movement, is combined with input from joint receptors near the limits of joint movement to generate a position signal that covers the full working range of the joint. Here it is hypothesised that in low gravity joint receptors become unresponsive because of the loss of forces acting on the joint capsule. This leads to a loss of position and movement sense which can be recovered by imposing elastic forces across the joint.

Item URL in elib:https://elib.dlr.de/195824/
Document Type:Article
Title:Proprioceptive disturbances in weightlessness revisited
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Weber, BernhardUNSPECIFIEDhttps://orcid.org/0000-0002-7857-0201UNSPECIFIED
Date:11 August 2023
Journal or Publication Title:npj Microgravity
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
Page Range:p. 64
Publisher:Nature Publishing Group
Keywords:Microgravity, kinaesthesia, joint receptor, muscle spindle, sensorimotor control
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Robotics
DLR - Research area:Raumfahrt
DLR - Program:R RO - Robotics
DLR - Research theme (Project):R - Telerobotics
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics (since 2013) > Cognitive Robotics
Deposited By: Weber, Dr. Bernhard
Deposited On:21 Sep 2023 10:21
Last Modified:21 Sep 2023 10:21

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