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Reliability and Minimal Detectable Change of the Styku 3D Body Scanner
Measurement in Physical Education and Exercise Science ( IF 1.7 ) Pub Date : 2020-04-14 , DOI: 10.1080/1091367x.2020.1751634
Blair Silver 1 , Patrick B. Wilson 1
Affiliation  

ABSTRACT

The objective of this study was to assess the reliability and minimal detectable change (MDC) of the Styku S100 3-dimensional (3D) scanner. Thirty-three participants completed two visits separated by 1–3 days; at each visit, two scans were performed. Intra-class correlation co-efficients (ICCs) and MDC values based on a 90% confidence interval (MDC90) were calculated. For body fat percentage, within-day ICC and MDC90 values were 0.997 and 1.1%, respectively, and these values changed to 0.989 and 2% when using single scans on separate days. For 21 circumference sites, 10 of the within-day ICCs were ≥ 0.99 and 20 of the MDC90 values were < 2 cm. Comparatively, five ICCs were ≥ 0.99 and 15 MDC90 values were < 2 cm when using single scans on separate days. In conclusion, between-visit differences of 1-2% for body fat percentage and 1–2 cm for most circumference values are needed to exceed typical measurement error.



中文翻译:

Styku 3D人体扫描仪的可靠性和最小的可检测变化

摘要

这项研究的目的是评估Styku S100 3维(3D)扫描仪的可靠性和最小可检测变化(MDC)。33名参与者完成了两次访问,相隔1-3天;每次拜访时,都要进行两次扫描。基于90%置信区间(MDC 90)计算了类内相关系数(ICC)和MDC值。对于体内脂肪百分比,当日ICC和MDC 90值分别为0.997和1.1%,而在不同日期使用单次扫描时,这些值分别变为0.989和2%。对于21个圆周部位,一天之内的10个ICC≥0.99,MDC 90的20个ICC小于2 cm。相比之下,五个ICC≥0.99,15个MDC 90在单独的日子中使用单次扫描时,值<2 cm。总之,两次身体脂肪百分比的访问之间差异为1-2%,大多数圆周值的访问间隔差异为1-2 cm,才能超过典型的测量误差。

更新日期:2020-04-14
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