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

Table 3 Group means of the absolute differences of upper arm elevations during work between the simplified and the standard reference analyses

	Mean absolute difference (range)
Percentile (°)
1^st	1.8 (0.0 – 4.4)
10^th	3.8 (0.2 – 9.1)
50^th	4.2 (0.1 – 9.8)
90^th	4.2 (0.0 – 12)
99^th	4.7 (0.3 – 18)
Percentage of time
> 30°	9.3 (0.2 – 21)
> 60°	2.3 (0.0 – 11)
> 90°	0.6 (0.1 – 2.9)

The group mean of the absolute differences (°; Mean absolute difference) at the 1^st, 10^th, 50^th, 90^th and 99^th percentiles of the angular distributions (°) and the percentage of time above 30°, 60° and 90° for the 28 subjects during work, between the simplified reference analysis and the standard reference analysis

ISSN: 1471-2474