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Table 4 Power output (Pout) as determined by three different methods. There is a significant difference between the measurement-wheels and the drag test

From: Variability in bimanual wheelchair propulsion: consistency of two instrumented wheels during handrim wheelchair propulsion on a motor driven treadmill

Subject Handedness Mean Pout x2 Op(Watt) Mean Pout x2 Sw(Watt) Pout dragtest (Watt)
1 Right 18.5 20.3 15.8
2 Left 17.0 16.8 13.2
3 Right 13.9 13.7 13.7
4 Left 15.5 13.5 11.1
5 Right 13.4 14.3 11.6
6 Right 15.2 17.9 16.0
7 Right 17.4 17.3 15.9
8 Right 13.8 13.8 11.9
9 Right 21.0 18.5 16.5
Mean:   16.2 16.2 14.0