Results 121 to 130 of about 5,103 (239)

Effects of spaceflight on the composition and function of the human gut microbiota

open access: gold, 2020
Zizhong Liu   +19 more
openalex   +1 more source

Plasticity of the heart in response to changes in physical activity

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend The heart adapts to changes in physical activity, with inactivity (e.g. bed rest or spaceflight) causing cardiac atrophy and ventricular stiffening, and endurance exercise training leading to eccentric hypertrophy and improved ventricular compliance.
Eric T. Hedge   +3 more
wiley   +1 more source

Motor unit adaptation to disuse: crossing the threshold from firing rate suppression to neuromuscular junction transmission

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Neuromuscular disuse scenarios of limb immobilization, reduced activity and bed rest result in impairments of muscle strength that exceed losses of muscle size. Neural adaptations are an assured consequence of disuse. The available evidence garnered from human and animal models highlights suppressed motor unit firing rate (MUFR ...
Mathew Piasecki
wiley   +1 more source

From Earth to orbit: How to preserve muscle health in space and bed rest

open access: yes
Experimental Physiology, EarlyView.
Antonios Matsakas, Colleen Deane
wiley   +1 more source

Neuromuscular mechanisms for the fast decline in rate of force development with muscle disuse – a narrative review

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Muscle unloading induces declines in muscle function, particularly in maximal and explosive strength. The decline in explosive strength (quantified as rate of force development, RFD) is greater than the decline in maximal strength (quantified as maximal force, Fmax).
Luca Ruggiero, Markus Gruber
wiley   +1 more source

Neuromotor changes in postural control following bed rest

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Prolonged bed rest (BR) (both horizontal and head‐down tilt) leads to neuromotor adaptations that impair postural control. Structural and functional changes occur in the brain, including a reduction in grey and white matter volume, alterations in functional connectivity, and shifts in cerebrospinal fluid distribution.
Ramona Ritzmann   +4 more
wiley   +1 more source

Genetic analysis of the human hair roots as a tool for spaceflight experiments

open access: gold, 2013
Masahiro Terada   +10 more
openalex   +2 more sources

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