| Autor: |
Daunis, M.K., Bayers, T.A., Bai, L., Vargas, L.J., Symons, T.B., Caruso, J.F. |
| Předmět: |
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| Zdroj: |
Isokinetics & Exercise Science; 2018, Vol. 26 Issue 3, p227-236, 10p |
| Abstrakt: |
BACKGROUND: Validity may refer to the inter-workout similarity of data from novel hardware to a device deemed the “gold standard”. The degree of familiarization to novel hardware may impact subsequent validity outcomes produced from repeated workouts. OBJECTIVE: To compare physiological, performance and perceptual variables to squats done with a barbell to those done with an exoskeleton intended as hardware for manned space flights. METHODS: Subjects made four laboratory visits. They did two familiarization sessions on the exoskeleton, followed by two workouts in which the sequence of the exercise hardware examined was determined by a coin flip. Per workout they did four repetitions each against four loads (23, 34, 45 and 57 kg) separated by 90-second rests. For the final two visits the same dependent variables were obtained before, during and after workouts. Z-scores identified outliers that were eliminated from further analyses. Dependent variables were compared with paired t-tests, Cohen’s d effect size, Bland-Altman plots and Pearson product moment correlation coefficients. RESULTS: Less than 1% of our data were outliers. Values for our dependent variables generally exhibited considerable inter-workout similarity. CONCLUSIONS: Exoskeleton findings were similar to those from a barbell and warrant continued inquiry, such as with microgravity simulation in human subjects. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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