Table 3 Reproducibility of the HR (bmin) variable during simultaneous wearing of two devices
Variable Velocity Data Device A M (SD) Device B M (SD) Change in Mean 95% CL CV ICC
HR (b·min-1) All velocities All 140.4 (33.3) 143.7 (34.0) 3.32 2.94 to 3.71 7.6 .91*
Clean 140.7 (33.4) 141.0 (33.4) .39 .22 to .56 2.9 .98*
4-6 km·h-1 All 97.9 (15.4) 97.7 (15.5) -.29 -.40 to -.18 1.6 .99*
Clean - - - - - -
8-10.5 km·h-1 All 150.7 (22.7) 155.2 (23.0) 4.54 4.06 to 5.01 6.8 .82*
Clean 151.7 (22.4) 152.8 (22.2) 1.14 .88 to 1.39 3.4 .95*
11 km·h-1 All 172.1 (22.9) 174.8 (14.4) 2.63 1.20 to 4.05 14.4 .51*
Clean 174.6 (13.2) 173.4 (12.9) -1.29 -1.74 to -.84 2.6 .99*
Tabular report of reliability statistics: Descriptive statistics, Standard Deviation (SD), Change in mean, 95% Confidence Limits (CL), Coefficient of Variation (CV) and Intra Class Coefficient (ICC)* p < 0.01