Table 2. Variations of passive torque and fascicles length immediately before (Pre) and 10 s after (Post) the four conditioning activities for the plantar flexor muscles.
|
SS |
DS |
SIMA |
CON |
|
Passive torque variations, Nm |
| 15°-ROMend |
Pre |
37.7 ± 8.8 |
34.7 ± 9.2 |
38.0 ± 13.4 |
39.8 ± 11.8 |
| Post |
34.7 ± 9.0 |
31.9 ± 8.5 |
36.0 ± 14.5 |
38.3 ± 11.2 |
| Δ% |
-8.3 ± 5.9 |
-8.1 ± 7.8 |
-6.5 ± 7.4 |
-3.5 ± 6.2 |
| 15-10° |
Pre |
9.9 ± 2.4 |
8.2 ± 2.6 |
9.9 ± 3.9 |
10.2 ± 3.9 |
| Post |
8.3 ± 2.2 |
7.7 ± 2.1 |
9.0 ± 4.0 |
9.3 ± 3.4 |
| Δ% |
-16.2 ± 9.8 |
-3.5 ± 12.7 |
-9.4 ± 10.4 |
-6.4 ± 14.4 |
| 10-5° |
Pre |
12.4 ± 2.9 |
11.2 ± 3.1 |
12.4 ± 4.6 |
13.5 ± 4.2 |
| Post |
11.2 ± 3.0 |
10.7 ± 3.0 |
12.1 ± 5.18 |
12.8 ± 4.1 |
| Δ% |
-10.0 ± 10.8 |
-4.2 ± 13.3 |
-3.5 ± 12.9 |
-5.5 ± 4.1 |
| 5°-ROMend |
Pre |
15.3 ± 4.0 |
15.4 ± 4.1 |
15.7 ± 5.1 |
16.0 ± 3.9 |
| Post |
15.2 ± 4.2 |
13.5 ± 3.7 * |
14.9 ± 5.4 |
16.1 ± 4.1 |
| Δ% |
-1.1 ± 6.5 |
-11.6 ± 14.8 #‡ |
-6.1 ± 8.7 |
0.8 ± 8.0 |
|
Fascicles length variations, cm |
| 15°-ROMend |
Pre |
0.33 ± 0.05 |
0.39 ± 0.07 |
0.38 ± 0.08 |
0.38 ± 0.06 |
| Post |
0.42 ± 0.11 * |
0.39 ± 0.1 |
0.40 ± 0.09 |
0.37 ± 0.07 |
| Δ% |
28.1 ± 29.8 † |
-0.4 ± 17.1 |
5.7 ± 14.5 |
-3.3 ± 7.0 |
| 15-10° |
Pre |
0.11 ± 0.03 |
0.14 ± 0.04 |
0.14 ± 0.05 |
0.13 ± 0.03 |
| Post |
0.14 ± 0.06 |
0.14 ± 0.05 |
0.14 ± 0.05 |
0.12 ± 0.04 |
| Δ% |
21.8 ± 44.2 |
-1.7 ± 21.8 |
4.4 ± 32.3 |
-6.7 ± 16.1 |
| 10-5° |
Pre |
0.11 ± 0.03 |
0.14 ± 0.05 |
0.13 ± 0.03 |
0.11 ± 0.04 |
| Post |
0.13 ± 0.04 |
0.14 ± 0.04 |
0.14 ± 0.05 |
0.11 ± 0.04 |
| Δ% |
25.2 ± 37.6 |
15.5 ± 62.9 |
14.7 ± 37.0 |
-4.7 ± 7.9 |
| 5°-ROMend |
Pre |
0.11 ± 0.03 |
0.12 ± 0.02 |
0.11 ± 0.03 |
0.14 ± 0.04 |
| Post |
0.15 ± 0.05 * |
0.12 ± 0.05 |
0.11 ± 0.04 |
0.14 ± 0.04 |
| Δ% |
45.3 ± 49.2 † |
-4.0 ± 26.2 |
3.9 ± 26.6 |
0.3 ± 7.5 |
Absolute values are expressed as mean ± standard deviations (SD) and change scores as percentage of pre-intervention test ± standard deviations (SD). Significant difference from:*pre-intervention tests,#CON,‡SS,† the other three conditioning activities (P<0.05). CON: Control; DS: Dynamic stretching; ROMend: Maximal dorsiflexion; SIMA: Submaximal isometric muscle activity; SS: Static stretching.
