John Ressman1, Wilhelmus Johannes Andreas Grooten2,3, Eva Rasmussen-Barr2. 1. Department of Neurobiology, Karolinska Institutet, Care Sciences and Society, Division of Physiotherapy, Alfred Nobels Allé 23, 141 83, Huddinge, Sweden. John.Ressman@ki.se. 2. Department of Neurobiology, Karolinska Institutet, Care Sciences and Society, Division of Physiotherapy, Alfred Nobels Allé 23, 141 83, Huddinge, Sweden. 3. Women's Health and Allied Health Professionals' Theme, Karolinska University Hospital, Solna, Stockholm, 171 76, Sweden.
Abstract
BACKGROUND: The Single Leg Squat test (SLS) is a common tool used in clinical examination to set and evaluate rehabilitation goals, but there is not one established SLS test used in the clinic. Based on previous scientific findings on the reliability of the SLS test and with a methodological rigorous setup, the aim of the present study was to investigate the intra- and interrater reliability of a standardised multi-segmental SLS test. METHODS: We performed a study of measurement properties to investigate the intra- and interrater reliability of a standardised multi-segmental SLS test including the assessment of the foot, knee, pelvis, and trunk. Novice and experienced physiotherapists rated 65 video recorded SLS tests from 34 test persons. We followed the Quality Appraisal for Reliability Studies checklist. RESULTS: Regardless of the raters experience, the interrater reliability varied between "moderate" for the knee variable (ĸ = 0.41, 95% CI 0.10-0.72) and "almost perfect" for the foot (ĸ = 1.00, 95% CI 1.00-1.00). The intrarater reliability varied between "slight" (pelvic variable; ĸ = 0.17, 95% CI -0.22-0.55) to "almost perfect" (foot variable; ĸ = 1.00, 95% CI 1.00-1.00; trunk variable; ĸ = 0.82, 95% CI 0.66-0.97). A generalised kappa coefficient including the values from all raters and segments reached "moderate" interrater reliability (ĸ = 0.52, 95% CI 0.43-0.61), the corresponding value for the intrarater reliability reached "almost perfect" (ĸ = 0.82, 95% CI 0.77-0.86). CONCLUSIONS: The present study shows a "moderate" interrater reliability and an "almost perfect" intrarater reliability for the variable all segments regardless of the raters experience. Thus, we conclude that the proposed standardised multi-segmental SLS test is reliable enough to be used in an active population.
BACKGROUND: The Single Leg Squat test (SLS) is a common tool used in clinical examination to set and evaluate rehabilitation goals, but there is not one established SLS test used in the clinic. Based on previous scientific findings on the reliability of the SLS test and with a methodological rigorous setup, the aim of the present study was to investigate the intra- and interrater reliability of a standardised multi-segmental SLS test. METHODS: We performed a study of measurement properties to investigate the intra- and interrater reliability of a standardised multi-segmental SLS test including the assessment of the foot, knee, pelvis, and trunk. Novice and experienced physiotherapists rated 65 video recorded SLS tests from 34 test persons. We followed the Quality Appraisal for Reliability Studies checklist. RESULTS: Regardless of the raters experience, the interrater reliability varied between "moderate" for the knee variable (ĸ = 0.41, 95% CI 0.10-0.72) and "almost perfect" for the foot (ĸ = 1.00, 95% CI 1.00-1.00). The intrarater reliability varied between "slight" (pelvic variable; ĸ = 0.17, 95% CI -0.22-0.55) to "almost perfect" (foot variable; ĸ = 1.00, 95% CI 1.00-1.00; trunk variable; ĸ = 0.82, 95% CI 0.66-0.97). A generalised kappa coefficient including the values from all raters and segments reached "moderate" interrater reliability (ĸ = 0.52, 95% CI 0.43-0.61), the corresponding value for the intrarater reliability reached "almost perfect" (ĸ = 0.82, 95% CI 0.77-0.86). CONCLUSIONS: The present study shows a "moderate" interrater reliability and an "almost perfect" intrarater reliability for the variable all segments regardless of the raters experience. Thus, we conclude that the proposed standardised multi-segmental SLS test is reliable enough to be used in an active population.
Entities:
Keywords:
Functional tests; Kappa; Movement quality; Reliability; Reproducibility; Single leg squat; Visual assessment
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