Skip to main content

Table 6 The group means and the within-subject variations of upper arm elevation and velocity between working days

From: Self-recordings of upper arm elevation during cleaning – comparison between analyses using a simplified reference posture and a standard reference posture

  Hotel housekeeping (n = 11) Hotel housekeeping+ (n = 11)
Percentile Group mean (° or °/s) Within-subject variation SD (95% CI) Repeatability coefficient (° or °/s) ICC Group mean (° or °/s) Within-subject variation SD (95% CI) Repeatability coefficient (° or °/s) ICC
50th (°) 29 0.6 (0.3 – 0.9) 1.6 0.98 28 1.7 (0.9 – 2.5) 4.8 0.86
90th (°) 64 1.5 (0.8 – 2.2) 4.1 0.97 62 4.4 (2.3 – 6.4) 12 0.80
Vel. (°/s) 81 4.7 (2.5 – 6.9) 13 0.93 63 12 (6.4 – 18) 33 0.66
  1. The group mean, the within-subject variation (° or °/s; standard deviation (SD) and 95% confidence intervals (95% CI)), the repeatability coefficient (° or °/s) and the intraclass correlation coefficient (ICC) of upper arm elevations (°; 50th and 90th percentiles of the angular distribution) and median upper arm velocity (°/s; Vel.) between working days for 22 subjects. Self-recordings of hotel housekeeping and hotel housekeeping+. Hotel housekeeping = cleaning hotel rooms and hotel housekeeping+ = cleaning hotel rooms and other tasks such as cleaning corridors. The standard reference posture was used as reference