Construct and concurrent validation of a new resistance intensity scale for exercise with thera-band (R) elastic bands

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Issue Date
2014-12
Embargo End Date
Authors
Colado, Juan C.
Garcia-Masso, Xavier
Triplett, N. Travis
Calatayud, Joaquin
Flandez, Jorge
Behm, David G.
Rogers, Michael E.
Advisor
Citation

Carlos Colado, Juan; Garcia-Masso, Xavier; Triplett, N. Travis; Calatayud, Joaquin; Flandez, Jorge; Behm, David G.; Rogers, Michael E. 2014. Construct and concurrent validation of a new resistance intensity scale for exercise with thera-band (R) elastic bands. Journal of Sports Science and Medicine, vol. 13:no. 4:pp, 758-766

Abstract

The construct and concurrent validity of the Thera-Band Perceived Exertion Scale for Resistance Exercise with elastic bands (EB) was examined. Twenty subjects performed two separate sets of 15 repetitions of both frontal and lateral raise exercise over two sessions. The criterion variables were myoelectric activity and heart rate. One set was performed with an elastic band grip width that permitted 15 maximum repetitions in the selected exercise, and another set was performed with a grip width 50% more than the 15RM grip. Following the final repetition of each set, active muscle (AM) and overall body (O) ratings of perceived exertion (RPE) were collected from the Thera-Band (R) resistance exercise scale and the OMNI-Resistance Exercise Scale of perceived exertion with Thera-Band (R) resistance bands (OMNI-RES EB). Construct validity was established by correlating the RPE from the OMNI-RES EB with the Thera-Band RPE scale using regression analysis. The results showed significant differences (p <= 0.05) in myoelectric activity, heart rate, and RPE scores between the low-and high-intensity sets. The intraclass correlation coefficient for active muscles and overall RPE scale scores was 0.67 and 0.58, respectively. There was a positive linear relationship between the RPE from the OMNI-RES EB and the Thera-Band scale. Validity coefficients for the RPE AM were r(2) = 0.87 and ranged from r(2) = 0.76 to 0.85 for the RPE O. Therefore, the Thera-Band Perceived Exertion Scale for Resistance Exercise can be used for monitoring elastic band exercise intensity. This would allow the training dosage to be better controlled within and between sessions. Moreover, the construct and concurrent validity indicates that the OMNI-RES EB measures similar properties of exertion as the Thera-Band RPE scale during elastic resistance exercise.

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