Net Energy Expenditure of Gravity-Independent High-Speed Resistive Exercise Done by Women

Caruso, John F.; Borgsmiller, Jake A.; Riner, Rebekah D.; Mason, Matthew S.; Lutz, Brant R; Nelson, Colbert C

doi:10.3357/asem.3159.2012

Cited by 6 publications

(3 citation statements)

References 11 publications

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“…Unlike current in-flight resistive exercise devices, the IET conforms better to hardware requirements for manned spacecraft, as it has a low mass, area, power needs, and is easy to stow and operate [46,47]. Prior IET research assessed data reproducibility, its relationships to anthropometry, and acute metabolic and hormonal changes to exercise [6,7,11,12]. Yet chronic adaptations to the IET are unknown.…”

Section: Introductionmentioning

confidence: 99%

Musculoskeletal Outcomes from Chronic High-Speed, High-Impulse Resistance Exercise

et al. 2018

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While bones and muscles adapt to mechanical loading, it appears that very specific types of stimuli must be applied to achieve osteogenesis. Our study assessed musculoskeletal outcomes to 30 training sessions on an Inertial Exercise Trainer (Newnan, GA). Subjects (n=13) performed workouts with their left leg, while their right served as an untreated control. Workouts entailed three 60-s sets each of knee extension, hip extension and calf press exercises, separated by 90-s rests. Before and after the 30 training sessions, subjects underwent strength tests (knee and ankle extensors of both legs), DEXA scans (hip, knee and ankles of both legs), and blood draws. After 30 training sessions 2×2 ANOVAs showed left leg peak torques rose significantly. 2×2 ANCOVAs, with bone scan area as a covariate, showed significant left leg calcaneal bone mineral content (+29%) and density (+33%) increases after 30 training sessions. A significant decline in C-terminal telopeptides of type I collagen, a blood marker of bone resorption, also occurred after 30 training sessions. The Inertial Exercise Trainer's large volume of training session repetitions elicited high peak force, peak acceleration and impulses that likely provided a mechanical loading stimulus that evoked calcaneal accretion.

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Section: Introductionmentioning

confidence: 99%

Musculoskeletal Outcomes from Chronic High-Speed, High-Impulse Resistance Exercise

et al. 2018

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“…RE is effective for problems related to physical function or structure, such as changes caused by pain or weakness 1) . In addition, RE increases energy costs and metabolism, thereby affecting hemodynamics 2) . Regular RE effectively eliminates foreign material in the arteries by reducing low-density lipoprotein cholesterol (LDL) levels while increasing highdensity lipoprotein (HDL) cholesterol levels 3) .…”

Section: Introductionmentioning

confidence: 99%

Effects of Resistive Exercise on Cerebral Blood Flow Velocity and Pulsatility Index of Healthy People

et al. 2012

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Abstract. [Purpose] This study compared the cerebral blood flow velocity and pulsatility index different exercise intensities before and after resistive exercises to evaluate the benefits of regular resistive exercise for the prevention of brain injuries such as stroke.[Subjects] Twelve healthy male adults were recruited for this study.[Methods] Transcranial Doppler ultrasonography was used to measure the cerebral blood flow velocity and pulsatility index. The test was conducted in 4 stages: at rest, moderate exercise, peak exercise, and recovery. After the pretest, each subject was given a 1-hour resistive exercise to be performed three times a week for 12 weeks, following which, a posttest was performed, and the resulting data were analyzed.[Results] Cerebral blood flow velocity at all stages, except systolic recovery, showed significant reductions after the intervention. The pulsatility index did not differ significantly at any stage. [Conclusion] Resistive exercise reduced cerebral blood flow velocity; therefore changes in cerebral blood flow should be monitored for the prevention of cerebrovascular diseases.

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“…The reliability and reproducibility of exercise from Impulse workouts were previously established (4)(5)(6) and it is the groundwork for current and future studies. Other studies also examined the metabolic responses (7), the net energy expenditure (8), and the blood lactate concentration (9) of gravity-independent high-speed resistive exercise done with Impulse. Since Impulse does not require gravity to operate and has small mass and power requirements, it is an ideal exercise machine to be used in a low gravity environment and may potentially decrease in-flight bone and strength losses incurred by astronauts.…”

Section: Introductionmentioning

confidence: 99%

Optimizing high-speed exercise performance : effect of load.

Bai¹

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who have given me invaluable educational opportunities. The purpose of this study was to identify an optimal load for the knee extension exercise done with Impulse (Newnan, GA). Forty-one women and twenty-nine men made six laboratory visits, including two familiarization sessions to the knee extension exercise and four real workout sessions which entailed four 30-second exercise sets, separated by 120-second rests, against four different loads (0Kg, 3.41Kg, 5.68Kg, 7.95Kg). A Latin Squares design was used to counterbalance the sequence of the sets. Average force (AF), peak force (PF), total work (TW), Impulse value, and the number of knee extension repetitions were each analyzed with a 2 (gender) x 4 (load) ANOVA, with repeated measures for load. Alpha = 0.05 denoted statistical significance. Tukey test or Tukey-Kramer approach served as post-hoc analysis.

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Net Energy Expenditure of Gravity-Independent High-Speed Resistive Exercise Done by Women

Abstract: Current results: 1) are partly attributable to higher series elastic element activity seen with Impulse repetitions; and 2) offer new information with respect to in-flight exercise protocols for female astronauts.

Cited by 6 publications

References 11 publications

Musculoskeletal Outcomes from Chronic High-Speed, High-Impulse Resistance Exercise

Musculoskeletal Outcomes from Chronic High-Speed, High-Impulse Resistance Exercise

Effects of Resistive Exercise on Cerebral Blood Flow Velocity and Pulsatility Index of Healthy People

Optimizing high-speed exercise performance : effect of load.

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