Publications by authors named "H C Gunga"
Article Synopsis
- - Muscle function deteriorates in space due to the effects of gravity loss, prompting astronauts to engage in daily exercise routines to maintain musculoskeletal health.
- - A new handheld device, MyotonPRO, successfully measured muscle stiffness in astronauts, revealing that while most muscles maintained stiffness, the Tibialis Anterior showed a significant decline.
- - The research suggests that targeted lower leg exercises are needed to address specific muscle stiffness changes, emphasizing the potential of muscle stiffness as a biomarker for health monitoring in space and on Earth.
Mechanic power output (MPO) and oxygen consumption (VO) reflect endurance capacity and are often stated relative to body mass (BM) but less often per skeletal muscle mass (SMM). Rating of perceived exertion (RPE) has previously shown conflicting results between sexes at submaximal intensities. Individual body composition, however, largely differs due to sex and training status.
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- Orthostatic dysregulation can happen when people return to normal gravity after being in microgravity, which is common in space travel; external peripheral skin cooling (PSC) has been proposed as a potential solution to this issue.
- A study called "Coolspin" was conducted with 18 healthy male volunteers, testing PSC while subjected to increased gravitational forces (up to +4g) in a centrifuge, measuring various cardiovascular parameters.
- The results showed that PSC did not significantly improve cardiovascular stability or hemodynamic activity during +Gz, suggesting that the cooling method used may not have been adequate or the subjects' responses to cooling were low, indicating a need for further research.