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2011 | 29A | Special Issue | 75-82

Article title

Can Energy Cost During Low-Intensity Resistance Exercise be Predicted by the OMNI-RES Scale?

Content

Title variants

Languages of publication

EN

Abstracts

EN
The aim of the present study was to assess the precision of the OMNI-RES scale to predict energy cost (EC) at low intensity in four resistance exercises (RE). 17 male recreational body builders (age = 26.6 ± 4.9 years; height = 177.7 ± 0.1 cm; body weight = 79.0 ± 11.1 kg and percent body fat = 10.5 ± 4.6%) served as subjects. Initially tests to determine 1RM for four resistance exercises (bench press, half squat, lat pull down and triceps extension) were administered. Subjects also performed resistance exercise at 12, 16, 20, and 24% of 1RM at a rate of 40 bpm until volitional exhaustion. Oxygen uptake (VO2) and rate of perceived exertion (RPE) using the OMNI-RES were obtained during and after all RE. EC was calculated using VO2 and the caloric values of VO2 for non-protein RER. Regression analyses were performed for every RE, using EC as the dependent and RPE as the predictor variable. The triceps extension, lat pull down and bench press, RPE correlated strongly with EC (R > 0.97) and predicted EC with a error of less than 0.2 kcal.min-1. In conclusion, RPE using the OMNI-RES scale can be considered as an accurate indicator of EC in the bench press, lat pull down and triceps extension performed by recreational bodybuilders, provided lower intensities are used (up to 24% of 1-RM) and provided each set of exercise is performed for the maximal sustainable duration. It would be interesting in future studies to consider having the subjects exercise at low intensities for longer durations than those in the present study.

Publisher

Year

Volume

29A

Pages

75-82

Physical description

Dates

published
1 - 9 - 2011
online
4 - 10 - 2011

Contributors

  • Laboratory of motor evaluation, Federal University of Juiz de Fora, Brazil
author
  • University Salgado de Oliveira, City Juiz de Fora, Brazil
author
  • Federal University of Paraná, Curitiba, Brazil
author
  • University of Pittsburgh, Pittsburgh, USA

References

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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_2478_v10078-011-0062-5
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