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Table 3 Means and standard deviation (between brackets) of propulsion characteristics for the different measurement-wheels (Optipush (Op) en Smartwheel (Sw)) over the three 4-minute blocks (n=9 AB subjects)

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

Variable: T1 Op T1 Sw T2 Op T2 Sw T3 Op T3 Sw ICC Betw. ICC Op Within ICC Sw Within
Push time (s) 0.37 (0.05) 0.38 (0.05) 0.38 (0.06) 0.37 (0.06) 0.37 (0.06) 0.38 (0.07) 0.97 0.96 0.95
Cycle time (s) 1.24 (0.24) 1.29 (0.27) 1.29 (0.31) 1.24 (0.25) 1.27 (0.27) 1.28 (0.31) 1 0.94 0.95
Contact angle (rad) 1.36 (0.16) 1.37 (0.19) 1.38 (0.2) 1.33 (0.2) 1.34 (0.21) 1.37 (0.24) 0.97 0.96 0.95
Fpeak (N) 66.87 (14.75) 68.92 (16.72) 67.47 (16.34) 63.47 (16.25) 65.25 (19.72) 62.79 (17.3) 0.94 0.92 0.94
Work/push (J) 10.47 (1.76) 10.66 (2.15) 10.72 (2.34) 10.21 (1.88) 10.38 (2.78) 10.57 (2.59) 0.89 0.91 0.94
Mean Power/push (W) 27.73 (5.21) 27.8 (5.35) 27.67 (5.34) 27.82 (5.82) 27.79 (7.01) 27.84 (6.25) 0.9 0.93 0.96
Frequency (push/min) 50.69 (8.87) 49 (9.5) 49.55 (10.16) 50.33 (8.92) 49.27 (9.2) 49.47 (10.18) 1 0.94 0.95
Mean power/ minute (W) 16.4 (2.48) 16.05 (2.63) 16.11 (2.48) 16.28 (2.39) 16.08 (2.61) 16.31 (2.47) 0.89 0.97 0.98
  1. The first ICC is between the wheels. Reported ICC’s in the last 2 columns are calculated between the mean per subject of the three blocks for each of the wheels.