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.