Abstract
Objectives: The purpose of the present study was to compare the test-retest reliability of the hip abductor isometric endurance test in healthy females when using the Borg scale in two different ways. In one group (group A), every 15 seconds and at the end of the test, the subject was asked to give an overall perception about how hard the exercise felt according to the Borg scale. In the other group (group B), the subject was asked to give an overall perception about how hard the exercise felt according to the Borg scale, but only at the end of the test. Method: Seventy-one healthy females (34 in group A and 37 in group B) were recruited. In two identical sessions, spaced by seven days, the participants performed the hip abductor isometric endurance test attended two identical assessment sessions. Results: Both groups demonstrated good test-retest reliability (ICC = 0.83 for group A and 0.77 for group B). The SEM was 11.7 seconds and the MDC, 32.4 seconds for group A. For group B, the SEM and the MDC were 14.6 and 40.4 seconds, respectively. Conclusions: These findings support the use of the Borg scale every 15 s and at the end of the hip abductor isometric endurance test in order to enhance the test-retest reliability.
Highlights
Numerous clinical tests are used by clinicians and researchers for the assessment of endurance of several muscular groups in healthy and symptomatic participants [1,2,3,4]
The purpose of the present study was to compare the test-retest reliability of the hip abductor isometric endurance test in healthy females when using the Borg scale in two different ways
The primary aim of the present study was to determine the testretest reliability of the hip abductor isometric endurance test in healthy females depending on two different uses of the Borg scale
Summary
Numerous clinical tests are used by clinicians and researchers for the assessment of endurance of several muscular groups in healthy and symptomatic participants (e.g. trunk extensors, neck flexors or ankle plantar flexors) [1,2,3,4]. Demoulin et al [8] suggested to ask the subjects to give an overall perception about how hard the exercise felt according to the Borg Rating of Perceived Exertion Scale (Borg RPE), a 15-point single-item scale ranging from 6 to 20 (with anchors ranging from 6 “No exertion” to 20 “Maximum exertion”) [9]. This subjective assessment, in addition to objective assessment of muscle endurance, might be a way to better reflect muscle fatigability while limiting the interference of individual factors.. This subjective assessment, in addition to objective assessment of muscle endurance, might be a way to better reflect muscle fatigability while limiting the interference of individual factors. authors reported significant correlations between the Borg RPE, EMG and endurance time suggesting a close relationship between subjective and objective assessment of muscle fatigue [5]
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