Table 1.
Absolute intrinsic contractile properties and supramaximal compound muscle action potential peak-to-peak amplitude (MMAX P–P) assessed by evoked contractions at knee-joint angles of 35°, 50°, 65°, 80°, and 95° (where 0° = full extension)
| Knee-joint angle | One-way ANOVA (P value) | |||||
|---|---|---|---|---|---|---|
| 35° | 50° | 65° | 80° | 95° | ||
| Evoked torque (Nm) | ||||||
| Twitch T¥50 | 24 ± 7 | 41 ± 10 | 52 ± 13 | 48 ± 11 | 46 ± 10 | < 0.001 |
| Twitch PT¥ | 30 ± 8 | 48 ± 10 | 59 ± 13 | 56 ± 13 | 53 ± 12 | < 0.001 |
| Octet T∞50 | 81 ± 15 | 120 ± 20 | 128 ± 23 | 100 ± 18 | 86 ± 16 | < 0.001 |
| Octet PT‡ | 129 ± 21 | 188 ± 30 | 199 ± 30 | 164 ± 34 | 146 ± 29 | < 0.001 |
| Evoked M-wave (mV) | ||||||
| MMAX P–P¥ | 4.0 ± 1.3 | 3.8 ± 1.3 | 3.6 ± 1.2 | 3.5 ± 1.1 | 3.3 ± 1.1 | < 0.001 |
Data are mean ± SD (n = 28 for twitch torque and m-wave; n = 26 for octet torque). PT peak torque, T50 torque at 50 ms. When one-way ANOVAs detected a main effect for angle, post-hoc test (Bonferroni with correction) was used to determine the differences across angles. Symbols indicate: ¥differences between all knee-joint angles, ∞differences between all knee-joint angles except for 35° and 95° which were similar, and ‡differences between all knee-joint angles except for 50° and 80° which were similar