Table 3. Descriptive statistics (mean ± standard deviation) by time-moment and intra-individual differences.
| Parameter | Muscle group | Action | Unit | Time-moment | Mean difference | Paired t-test | Magnitude effect | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| M1 (n = 26) |
M2 (n = 26) |
Value | (95% CI) | t | p | d | Qualitative | ||||
| (a) PT | KE | cc | N·m | 224.7±44.3 | 222.0±43.0 | 2.7 | (–0.1 to 5.6) | 2.001 | 0.06 | 0.06 | trivial |
| (b) PT | KE | ecc | N·m | 262.7±64.0 | 263.1±63.9 | –0.4 | (–5.1 to 4.3) | 0.176 | 0.86 | 0.01 | trivial |
| (c) PT | KF | cc | N·m | 132.7±26.0 | 129.4±25.5 | 3.3 | (0.1 to 6.6) | 2.062 | ≤0.05 | 0.13 | trivial |
| (d) PT | KF | ecc | N·m | 153.3±30.9 | 155.1±27.7 | –1.8 | (–6.4 to 2.8) | 0.797 | 0.43 | 0.06 | trivial |
| (e) T at angle of PT_KEcc | KF | cc | N·m | 109.5±20.9 | 107.1±19.6 | 2.5 | (–0.1 to 5.0) | 2.027 | ≤0.05 | 0.12 | trivial |
| (f) T at angle of PT_KEcc | KF | ecc | N·m | 114.3±18.0 | 115.5±17.5 | –1.2 | (–3.9 to 1.5) | 0.920 | 0.37 | 0.07 | trivial |
| (g) T at angle of PT_KEecc | KF | cc | N·m | 110.8±26.1 | 108.9±24.3 | 1.8 | (–0.9 to 4.6) | 1.367 | 0.18 | 0.08 | trivial |
| Conventional ratio | (c)/(a) | 0.60±0.08 | 0.59±0.08 | 0.01 | (–0.01 to 0.02) | 1.026 | 0.32 | 0.13 | trivial | ||
| Conventional ratio at angle of PT_KEcc | (e)/(a) | 0.49±0.07 | 0.49±0.08 | 0.01 | (–0.01 to 0.01) | 1.420 | 0.17 | 0.01 | trivial | ||
| Functional extension ratio | (d)/(a) | 0.69±0.11 | 0.71±0.10 | –0.02 | (–0.04 to 0.01) | 1.911 | 0.07 | 0.19 | trivial | ||
| Functional extension ratio at angle of PT_KEcc | (f)/(a) | 0.52±0.09 | 0.53±0.09 | 0.01 | (–0.01 to 0.02) | 2.586 | ≤0.05 | 0.11 | trivial | ||
| Functional flexion ratio | (c)/(b) | 0.53±0.17 | 0.52±0.16 | 0.01 | (–0.01 to 0.03) | 1.845 | 0.08 | 0.06 | trivial | ||
| Functional flexion ratio at angle of PT_KEecc | (g)/(b) | 0.83±0.10 | 0.84±0.08 | –0.01 | (–0.02 to 0.01) | 1.032 | 0.31 | 0.11 | trivial | ||
Abbreviations: M1, time-moment 1; M2, time-moment 2; 95% CI, 95% confidence interval; PT, peak torque; T, torque; KE; knee extensors; KF; knee flexors; cc, concentric; ecc, eccentric.