Table 3. Intraclass correlation coefficients (ICC) with 95% confidence intervals obtained at each relative load for each velocity variable and regression model.
| Load (%1RM) | Mean velocity | Mean propulsive velocity | Peak velocity | |||
|---|---|---|---|---|---|---|
| Linear | Polynomial | Linear | Polynomial | Linear | Polynomial | |
| 20 | 0.89 (0.72, 0.96) | 0.81 (0.57, 0.93) | 0.85 (0.65, 0.94) | 0.75 (0.44, 0.90) | 0.53 (0.10, 0.80) | 0.50 (0.06, 0.78) |
| 25 | 0.89 (0.73, 0.96) | 0.84 (0.63, 0.94) | 0.86 (0.66, 0.94) | 0.79 (0.52, 0.92) | 0.53 (0.10, 0.79) | 0.48 (0.04, 0.77) |
| 30 | 0.89 (0.73, 0.96) | 0.87 (0.68, 0.95) | 0.86 (0.66, 0.94) | 0.82 (0.59, 0.93) | 0.52 (0.09, 0.79) | 0.46 (0.01, 0.76) |
| 35 | 0.89 (0.73, 0.96) | 0.87 (0.69, 0.95) | 0.86 (0.67, 0.95) | 0.85 (0.63, 0.94) | 0.52 (0.08, 0.79) | 0.44 (-0.01, 0.75) |
| 40 | 0.89 (0.72, 0.96) | 0.86 (0.67, 0.95) | 0.86 (0.67, 0.95) | 0.85 (0.64, 0.94) | 0.51 (0.07, 0.78) | 0.43 (-0.03, 0.74) |
| 45 | 0.88 (0.71, 0.95) | 0.83 (0.61, 0.93) | 0.86 (0.67, 0.95) | 0.83 (0.60, 0.93) | 0.50 (0.06, 0.78) | 0.42 (-0.04, 0.73) |
| 50 | 0.87 (0.70, 0.95) | 0.79 (0.52, 0.92) | 0.86 (0.66, 0.94) | 0.80 (0.53, 0.92) | 0.50 (0.05, 0.78) | 0.42 (-0.05, 0.73) |
| 55 | 0.86 (0.67, 0.95) | 0.73 (0.42, 0.89) | 0.85 (0.65, 0.94) | 0.74 (0.44, 0.90) | 0.49 (0.05, 0.77) | 0.42 (-0.04, 0.74) |
| 60 | 0.84 (0.63, 0.94) | 0.67 (0.31, 0.86) | 0.84 (0.62, 0.94) | 0.68 (0.33, 0.87) | 0.49 (0.05, 0.77) | 0.44 (-0.02, 0.74) |
| 65 | 0.81 (0.56, 0.92) | 0.61 (0.21, 0.83) | 0.81 (0.57, 0.93) | 0.62 (0.23, 0.84) | 0.49 (0.05, 0.78) | 0.46 (0.00, 0.76) |
| 70 | 0.76 (0.46, 0.90) | 0.54 (0.12, 0.80) | 0.77 (0.49, 0.91) | 0.56 (0.13, 0.81) | 0.50 (0.06, 0.78) | 0.48 (0.03, 0.77) |
| 75 | 0.68 (0.33, 0.87) | 0.49 (0.04, 0.77) | 0.71 (0.37, 0.88) | 0.49 (0.05, 0.78) | 0.52 (0.08, 0.79) | 0.52 (0.08, 0.79) |
| 80 | 0.58 (0.16, 0.82) | 0.43 (-0.03, 0.74) | 0.61 (0.21, 0.83) | 0.44 (-0.02, 0.75) | 0.54 (0.11, 0.80) | 0.56 (0.14, 0.81) |
| 85 | 0.44 (-0.02, 0.75) | 0.38 (-0.10, 0.71) | 0.47 (0.02, 0.76) | 0.39 (-0.07, 0.72) | 0.56 (0.15, 0.81) | 0.61 (0.21, 0.83) |
| 90 | 0.31 (-0.17, 0.67) | 0.33 (-0.15, 0.68) | 0.33 (-0.15, 0.68) | 0.37 (-0.10, 0.71) | 0.60 (0.19, 0.83) | 0.66 (0.29, 0.86) |
| 95 | 0.22 (-0.26, 0.61) | 0.29 (-0.20, 0.66) | 0.22 (-0.26, 0.62) | 0.37 (-0.10, 0.71) | 0.63 (0.24, 0.84) | 0.66 (0.30, 0.86) |
| 100 | 0.19 (-0.29, 0.59) | 0.27 (-0.21, 0.65) | 0.18 (-0.30, 0.59) | 0.40 (-0.07, 0.72) | 0.65 (0.28, 0.85) | 0.59 (0.19, 0.83) |
| All | 0.70 (0.25) | 0.62 (0.22) | 0.69 (0.24) | 0.63 (0.19) | 0.53 (0.05) | 0.50 (0.08) |
1RM, one-repetition maximum; All, ICC value obtained from the full load-velocity relationship (mean ± standard deviation).