Variability in individual musculoskeletal response is not increased by countermeasures during bed rest.

ABSTRACT:

Introduction

Under weightlessness conditions, there is a loss of bone and muscle mass. However, these adaptations are subject to great inter-individual variability. As an analogue to weightlessness, bed rest studies are carried out on Earth, which also serve to test countermeasures counteracting bone and muscle loss. Since study participants react differently to any interventions such as countermeasures, it can be assumed from a statistical point of view that the between-subject variation (BSV) is inflated when combining bed rest with countermeasure exercises. The aim of this study was therefore to examine whether a countermeasure has an effect on the magnitude of BSV.

Methods

To this purpose, the decrease in muscle cross-sectional area and bone mineral content was analyzed

SUBMITTER: Bocker J 

PROVIDER: S-EPMC12558760 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature