Evaluation of a Treadmill with Vibration Isolation and Stabilization (TVIS) for Use on the International Space Station

McCrory, Jean L.; Lemmon, David R.; Sommer, Henry J.; Prout, Brian; Smith, Damon C.; Korth, Deborah W.; Lucero, Javier; Greenisen, Michael C.; Moore, J.W.; Kozlovskaya, I. B.; Pestov, I. D.; Stepansov, Victor; Miyakinchenko, Yevgeny; Cavanagh, Peter R.

doi:10.1123/jab.15.3.292

Cited by 26 publications

(13 citation statements)

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“…During treadmill exercise, astronauts wore a shoulder and waist harness attached to a subject load device (SLD) or to various bungee cord (BC) configurations to provide a gravity replacement load (GRL) (McCrory et al, 1999). Clips could be added in series with the bungee cords to increase effective length without changing applied force.…”

Section: Methodsmentioning

confidence: 99%

Foot forces during exercise on the International Space Station

Genc

Gopalakrishnan

Kuklis

et al. 2010

Journal of Biomechanics

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Section: Methodsmentioning

confidence: 99%

Foot forces during exercise on the International Space Station

Genc

Gopalakrishnan

Kuklis

et al. 2010

Journal of Biomechanics

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“…Due to the discomfort of the harness, however, astronauts were unable to use the harness at high enough loads to replicate Earth-like impact loads as evidenced by the ground reaction forces (McCrory et al, 1999). A successful exercise countermeasure involving locomotion must achieve functional mechanical loading of the lower limbs and be comfortable enough for regular daily exercise (Convertino, 1996;McCrory et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Applied horizontal force increases impact loading in reduced-gravity running

Chang

Hamerski

Kram

2001

Journal of Biomechanics

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The chronic exposure of astronauts to microgravity results in structural degradation of their lower limb bones. Currently, no effective exercise countermeasure exists. On Earth, the impact loading that occurs with regular locomotion is associated with the maintenance of bone's structural integrity, but impact loads are rarely experienced in space. Accurately mimicking Earth-like impact loads in a reduced-gravity environment should help to reduce the degradation of bone caused by weightlessness. We previously showed that running with externally applied horizontal forces (AHF) in the anterior direction qualitatively simulates the highimpact loading associated with downhill running on Earth. We hypothesized that running with AHF at simulated reduced gravity would produce impact loads equal to or greater than values experienced during normal running at Earth gravity. With an AHF of 20% of gravity-specific body weight at all gravity levels, impact force peaks increased 74%, average impact loading rates increased 46%, and maximum impact loading rates increased 89% compared to running without any AHF. In contrast, AHF did not substantially affect active force peaks. Duty factor and stride frequency decreased modestly with AHF at all gravity levels. We found that running with an AHF in simulated reduced gravity produced impact loads equal to or greater than those experienced at Earth gravity. An appropriate AHF could easily augment existing partial gravity treadmill running exercise countermeasures used during spaceflight and help prevent musculoskeletal degradation. #

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“…W hole-body vibration is a technology that was first developed by scientists in the second half of the 20th century as a way to reduce bone density loss and muscle atrophy in astronauts exposed to zero-gravity conditions. [1][2][3][4][5] Also known as indirect vibration, wholebody vibration (WBV) consists of exposing an individual to repetitive oscillations of a given amplitude and frequency that are produced by a mechanical device in the form of sinusoidal waveforms. Within the past 2 decades, vibration platforms designed specifically for commercial use are finding their way into performance centers and universities throughout the United States.…”

mentioning

confidence: 99%

A Comparison of Whole-Body Vibration and Resistance Training on Total Work in the Rotator Cuff

Hand

Verscheure

Osternig

2009

Journal of Athletic Training

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Context: Whole-body vibration machines are a relatively new technology being implemented in the athletic setting. Numerous authors have examined the proposed physiologic mechanisms of vibration therapy and performance outcomes. Changes have mainly been observed in the lower extremity after individual exercises, with minimal attention to the upper extremity and resistance training programs.Objective: To examine the effects of a novel vibration intervention directed at the upper extremity as a precursor to a supervised, multijoint dynamic resistance training program.Design: Randomized controlled trial. Setting: National Collegiate Athletic Association Division IA institution.Patients or Other Participants: Thirteen female studentathletes were divided into the following 2 treatment groups: (1) whole-body vibration and resistance training or (2) resistance training only.Intervention(s): Participants in the vibration and resistance training group used an experimental vibration protocol of 2 3 60 seconds at 4 mm and 50 Hz, in a modified push-up position, 3 times per week for 10 weeks, just before their supervised resistance training session.Main Outcome Measure(s): Isokinetic total work measurements of the rotator cuff were collected at baseline and at week 5 and week 10.Results: No differences were found between the treatment groups (P . .05). However, rotator cuff output across time increased in both groups (P , .05).Conclusions: Although findings did not differ between the groups, the use of whole-body vibration as a precursor to multijoint exercises warrants further investigation because of the current lack of literature on the topic. Our results indicate that indirectly strengthening the rotator cuff using a multijoint dynamic resistance training program is possible.Key Words: isokinetic testing, shoulder, upper extremity Key PointsN We found no difference in strength gains between the whole-body vibration and resistance training and the resistance training-only groups.N It may be possible to indirectly strengthen the rotator cuff using a multijoint dynamic resistance training program. N Research on whole-body vibration is in its infancy and should continue so that we can learn if this technique is a useful precursor to resistance training.W hole-body vibration is a technology that was first developed by scientists in the second half of the 20th century as a way to reduce bone density loss and muscle atrophy in astronauts exposed to zero-gravity conditions. 1-5 Also known as indirect vibration, wholebody vibration (WBV) consists of exposing an individual to repetitive oscillations of a given amplitude and frequency that are produced by a mechanical device in the form of sinusoidal waveforms. Within the past 2 decades, vibration platforms designed specifically for commercial use are finding their way into performance centers and universities throughout the United States. As a result, researchers in athletic training and sport performance have begun to explore the use of WBV in a trained population.Investigators ha...

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Evaluation of a Treadmill with Vibration Isolation and Stabilization (TVIS) for Use on the International Space Station

Cited by 26 publications

References 0 publications

Foot forces during exercise on the International Space Station

Foot forces during exercise on the International Space Station

Applied horizontal force increases impact loading in reduced-gravity running

A Comparison of Whole-Body Vibration and Resistance Training on Total Work in the Rotator Cuff

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