Table 2. Within-session reliability of the key outcome variables.
| Outcome variables |
Relative reliability |
Absolute reliability |
| ICCs (95% CI) |
ICCa (95% CI) |
TE (95% CI) |
CV (95% CI) |
SWC (95% CI) |
| 5 m time (s) |
0.81 (0.65-0.91) |
0.93 (0.85-0.97) |
0.02 (0.01-0.02) |
1.23 (0.98-1.37) |
0.01 (0.00-0.01) |
| 10 m time (s) |
0.89 (0.77-0.94) |
0.96 (0.91-0.98) |
0.02 (0.02-0.02) |
0.90 (0.79-0.96) |
0.01 (0.00-0.01) |
| 20 m time (s) |
0.77 (0.62-0.87) |
0.91 (0.83-0.95) |
0.03 (0.02-0.03) |
0.84 (0.68-0.95) |
0.01 (0.01-0.01) |
| 30 m time (s) |
0.85 (0.74-0.92) |
0.94 (0.89-0.97) |
0.06 (0.05-0.07) |
1.34 (1.17-1.46) |
0.02 (0.02-0.02) |
| F0 (N/kg) |
0.71 (0.49-0.85) |
0.88 (0.74-0.94) |
0.23 (0.16-0.28) |
3.41 (2.37-4.09) |
0.07 (0.05-0.08) |
| V0 (m/s) |
0.74 (0.58-0.86) |
0.90 (0.81-0.95) |
0.22 (0.17-0.26) |
2.36 (1.85-2.74) |
0.06 (0.05-0.07) |
| Pmax (W/kg) |
0.90 (0.80-0.95) |
0.97 (0.92-0.98) |
0.35 (0.31-0.37) |
2.20 (1.95-2.32) |
0.10 (0.09-0.10) |
| FV Slope |
0.48 (0.26-0.69) |
0.74 (0.51-0.87) |
0.05 (0.03-0.07) |
6.98 (3.70-9.96) |
0.01 (0.01-0.02) |
| RF max (%) |
0.86 (0.73-0.93) |
0.95 (0.89-0.98) |
0.01 (0.00-0.01) |
1.29 (1.09-1.40) |
0.00 (0.00–0.00) |
| DRF (%) |
0.47 (0.24-0.68) |
0.72 (0.49-0.86) |
0.00 (0.00-0.01) |
7.25 (3.73-10.5) |
0.00 (0.00–0.00) |
| Max. Speed (m/s) |
0.77 (0.62-0.88) |
0.91 (0.83-0.96) |
0.16 (0.13-0.19) |
1.92 (1.55-2.18) |
0.03 (0.02-0.04) |
ICCs – intraclass correlation coefficient (single measures); ICCa – intraclass correlation coefficient (average measures); CI – confidence interval; TE – typical error; CV – coefficient of variation (%); SWC - smallest worthwhile change; F
0 - theoretical maximal force; V
0 - theoretical maximal velocity; P
max - maximal power; FV slope - slope of the force–velocity relationship; RF
max - maximal ratio of horizontal-to-resultant force. D
RF - decrease in the ratio of horizontal-to-resultant force.
