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