Ground reaction force values in cosmonauts during locomotor exercises on board the International Space Station

Fomina, E. V.; Savinkina, Alexandra; Yarmanova, E. N.

doi:10.1134/s0362119717050048

Cited by 6 publications

(2 citation statements)

References 12 publications

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“…Moreover, whether the provision of full BW loading is actually optimal, is subject to further research. An alternative approach may be to increase running speed 8,15,38 , which has been shown to augment maximum plantar force 13 . Interestingly, many ISS crewmembers appear to intuitively increase their running speed to achieve a perceived workout intensity that is similar to what they are used to on Earth despite the reduced external loading (A. Gerst, Personal Communication 2021, see Supplementary Reference).…”

Section: Discussionmentioning

confidence: 99%

Contractile behavior of the gastrocnemius medialis muscle during running in simulated hypogravity

et al. 2021

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Vigorous exercise countermeasures in microgravity can largely attenuate muscular degeneration, albeit the extent of applied loading is key for the extent of muscle wasting. Running on the International Space Station is usually performed with maximum loads of 70% body weight (0.7 g). However, it has not been investigated how the reduced musculoskeletal loading affects muscle and series elastic element dynamics, and thereby force and power generation. Therefore, this study examined the effects of running on the vertical treadmill facility, a ground-based analog, at simulated 0.7 g on gastrocnemius medialis contractile behavior. The results reveal that fascicle−series elastic element behavior differs between simulated hypogravity and 1 g running. Whilst shorter peak series elastic element lengths at simulated 0.7 g appear to be the result of lower muscular and gravitational forces acting on it, increased fascicle lengths and decreased velocities could not be anticipated, but may inform the development of optimized running training in hypogravity. However, whether the alterations in contractile behavior precipitate musculoskeletal degeneration warrants further study.

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Section: Discussionmentioning

confidence: 99%

Contractile behavior of the gastrocnemius medialis muscle during running in simulated hypogravity

et al. 2021

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“… 16 , 17 Sensorimotor function too, is altered by exposure to the microgravity environment of space, resulting in atony, atrophy, decreased gait speed, and reduced muscle power capabilities. 18 , 19 To prepare astronauts for working in space, the Johnson Space Center (JSC) uses the Neutral Buoyancy Laboratory (NBL) as a training analog for space’s unique microgravity environment. 20 Our data suggest crewmembers exposed to the duration of the NEEMO mission suffer a sensorimotor cost.…”

Section: Discussionmentioning

confidence: 99%

Exposure to an extreme environment comes at a sensorimotor cost

et al. 2018

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Long duration space flight is known to induce severe modifications in the sensorimotor and musculoskeletal systems. While in-flight strategies including physical fitness have been used to prevent the loss of bone and muscle mass using appropriate rehabilitative countermeasures, less attention has been put forth in the design of technologies that can quickly and effectively assess sensorimotor function during missions in space. The aims of the present study were therefore (1) to develop a Portable Sensorimotor Assessment Platform (PSAP) to enable a crewmember to independently and quickly assess his/her sensorimotor function during the NASA’s Extreme Environment Mission Operations (NEEMO) and (2) to investigate changes in performance of static posture, tandem gait, and lower limb ataxia due to exposure in an extreme environment. Our data reveal that measuring the degree of upper body balance and gait regularity during tandem walking using PSAP provided a sensitive and objective quantification of body movement abnormalities due to changes in sensorimotor performance over the duration of mission exposure.

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Indicators of cosmonaut locomotor functions stability: A new method for ground-reaction forces analysis

et al. 2021

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Ground reaction force values in cosmonauts during locomotor exercises on board the International Space Station

Cited by 6 publications

References 12 publications

Contractile behavior of the gastrocnemius medialis muscle during running in simulated hypogravity

Contractile behavior of the gastrocnemius medialis muscle during running in simulated hypogravity

Exposure to an extreme environment comes at a sensorimotor cost

Indicators of cosmonaut locomotor functions stability: A new method for ground-reaction forces analysis

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