Results 221 to 230 of about 37,992 (290)

ATHLETIC: An exoskeleton countermeasure exercise device for resistive and plyometric training in deep‐space missions

open access: yesExperimental Physiology, EarlyView.
Abstract Prolonged exposure to weightlessness leads to loss of muscle and bone mass. Therefore, astronauts on board the International Space Station (ISS) currently perform mandatory daily exercises. ISS missions usually last 6 months, and future missions will become significantly longer when going, for example, to Mars.
Jonas Böcker   +6 more
wiley   +1 more source

Temporal summation in human peripheral axons when stimulated transcutaneously with a 10‐kHz waveform

open access: yesExperimental Physiology, EarlyView.
Abstract Transcutaneous spinal cord stimulation, as used for rehabilitation of impaired motor function after spinal cord injury, often involves a 10‐kHz waveform modulated to produce repetitive bursts of stimulation. Kilohertz‐frequency waveforms may facilitate the summation of subthreshold depolarisations, but the optimal burst duration for nerve ...
Billy L. Luu   +5 more
wiley   +1 more source

Effects of 48-h exposure to natural hypobaric hypoxia on surface-electromyography-based cocontraction indices

open access: hybrid
Juan Guerrero‐Henriquez   +5 more
openalex   +1 more source

Passive thigh heating improves peak force production in younger adults and early isokinetic force production in younger and older adults

open access: yesExperimental Physiology, EarlyView.
Abstract Older adults often suffer from reduced physical capability relative to young adults, in part due to impaired muscle function. This study investigated the ergogenic effects of passive thigh heating on knee extensor torque production in healthy older versus younger adults.
Desmond Denny   +2 more
wiley   +1 more source

A Comparison of Techniques for Decomposing Surface Electromyography Signals During High-Intensity Contractions a Preliminary Analysis

open access: green, 2021
Lyric D. Richardson   +6 more
openalex   +1 more source

NEX4EX – A novel exercise device enabling resistive, plyometric and sensorimotor training during deep‐space missions: A case report

open access: yesExperimental Physiology, EarlyView.
Abstract During weightlessness, the human neuro–muscular–skeletal system undergoes maladaptation to the microgravity environment. The European Space Agency (ESA) project NEX4EX, ‘Novel Exercise Hardware for Exploration’, developed an advanced multipurpose exerciser offering resistive (RES), plyometric (PLYO) and sensorimotor (SENSO) exercises.
Jonas Böcker   +7 more
wiley   +1 more source

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