Table 1.
Between-session reliability for ILP and CMJ.
| Variable | Session 1 | Session 2 | Change | p | ICC (95% CI) | CV% (95% CI) | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Mean | SD | ||||||
| ILP | |||||||||||
| Peak force max (N) | 2104 | 354.2 | 2116 | 322.6 | 12.2 | 104 | 0.68 | 0.98 | (0.93–0.99) | 3.48 | (−3.34–10.31) |
| Peak force mean 2 (N) | 2080 | 353.0 | 2076 | 309.8 | −3.72 | 99.4 | 0.90 | 0.98 | (0.93–0.99) | 3.38 | (−3.25–10.01) |
| Peak force mean 3 (N) | 2042 | 347.3 | 2050 | 304.7 | 8.30 | 97.2 | 0.76 | 0.98 | (0.93–0.99) | 3.36 | (−3.23–9.94) |
| Peak RFD max (N/s) | 9415 | 2035 | 9312 | 1828 | −103 | 693 | 0.60 | 0.97 | (0.90–0.99) | 5.23 | (−5.03–15.50) |
| Peak RFD mean 2 (N/s) | 9177 | 1987 | 9103 | 1764 | −73.5 | 578 | 0.66 | 0.98 | (0.93–0.99) | 4.47 | (−4.29–13.24) |
| Peak RFD mean 3 (N/s) | 8881 | 1902 | 8906 | 1725 | 25.3 | 459 | 0.85 | 0.99 | (0.95–0.99) | 3.65 | (−3.51–10.81) |
| CMJ | |||||||||||
| Peak power max (W) | 3252 | 562.5 | 3214 | 559.7 | −38.0 | 95.0 | 0.18 | 0.99 | (0.98–0.99) | 2.08 | (−1.99–6.15) |
| Peak power mean 2 (W) | 3229 | 560.2 | 3194 | 564.0 | −35.7 | 78.6 | 0.13 | 0.99 | (0.98–0.99) | 1.73 | (−1.66–5.12) |
| Peak power mean 3 (W) | 3207 | 554.4 | 3170 | 561.5 | −37.2 | 81.7 | 0.13 | 0.99 | (0.98–0.99) | 1.81 | (−1.74–5.36) |
| Peak force max (N) | 1620 | 204.3 | 1621 | 212.3 | 1.37 | 56.5 | 0.93 | 0.98 | (0.94–0.99) | 2.47 | (−2.37–7.30) |
| Peak force mean 2 (N) | 1605 | 207.4 | 1608 | 210.8 | 2.72 | 57.3 | 0.15 | 0.98 | (0.94–0.99) | 2.52 | (−2.42–7.46) |
| Peak force mean 3 (N) | 1594 | 204.7 | 1598 | 207.9 | 4.29 | 58.2 | 0.14 | 0.98 | (0.94–0.99) | 2.58 | (−2.48–7.64) |
| Peak Velocity max (m s −1) | 2.69 | 0.18 | 2.67 | 0.18 | −0.02 | 0.06 | 0.20 | 0.97 | (0.92–0.99) | 1.47 | (−1.42–4.36) |
| Peak Velocity mean 2 (m s −1) | 2.68 | 0.18 | 2.66 | 0.18 | −0.02 | 0.06 | 0.16 | 0.97 | (0.92–0.99) | 1.47 | (−1.41–4.34) |
| Peak Velocity mean 3 (m s −1) | 2.67 | 0.18 | 2.65 | 0.19 | −0.03 | 0.06 | 0.12 | 0.97 | (0.91–0.99) | 1.51 | (−1.45–4.46) |
| Peak height max (cm) | 34.0 | 4.9 | 33.4 | 4.9 | −0.5 | 1.4 | 0.21 | 0.98 | (0.93–0.99) | 3.02 | (−2.90–8.94) |
| Peak height mean 2 (cm) | 33.7 | 4.9 | 33.1 | 5.0 | −0.7 | 1.5 | 0.87 | 0.97 | (0.91–0.99) | 3.20 | (−3.07–9.47) |
| Peak height mean 3 (cm) | 33.4 | 4.8 | 32.8 | 5.0 | −0.7 | 0.2 | 0.80 | 0.97 | (0.91–0.99) | 3.24 | (−3.11–9.60) |
ILP, isometric leg press; CMJ; countermovement jump; RFD, rate of force development; ICC, intraclass correlation coefficient; CV, coefficient of variation; CI, confidence interval; p, p-value from paired t-test.