Table 6 Reproducibility of the HR (b·min) variable during a test-retest protocol.
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 146.1 (35.4) 141.1 (33.4) -4.26 -4.82 to -3.69 8.0 .92*
Clean 143.1 (34.4) 138.8 (32.7) -4.2 -4.56 to -3.92 4.6 .97*
4-6 km·h-1 All 99.5 (16.8) 99.7 (16.8) -1.82 -2.41 to -1.23 5.9 .89*
Clean - - - - - -
8-10.5 km·h-1 All 157.0 (25.0) 151.9 (22.5) -5.09 -5.89 to -4.28 8.7 .73*
Clean 156.5 (22.7) 151.4 (21.5) -5.13 -5.55 to -4.71 4.1 .93*
11 km·h-1 All 179.9 (17.7) 175.1 (18.5) -4.80 -6.44 to -3.16 7.4 .54*
Clean 177.6 (12.0) 172.0 (13.3) -5.58 -6.34 to -4.82 2.8 .85*
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