Table 2. Co-activation index (%) for knee flexion and knee extension. Data are average (±SD).
|
Knee flexion |
Knee extension |
60°/s |
240°/s |
450°/s |
60°/s |
240°/s |
450°/s |
Pre |
Post |
Pre |
Post |
Pre |
Post |
Pre |
Post |
Pre |
Post |
Pre |
Post |
RT |
6.7 (7.4) |
4.8 (1.0) |
6.0 (3.1) |
4.9 (1.5) |
8.1 (5.0) |
13.0 (8.3) |
19.0 (9.7) |
12.0 (3.4) |
31.4 (12.8) |
19.6 (5.2) |
28.5 (21.2) |
31.8 (7.8) |
RTC |
9.4 (8.8) |
6.1 (2.8) |
9.4 (6.6) |
7.0 (2.5) |
17.9 (11.6) |
14.0 (5.9) |
19.3 (14.9) |
13.3 (8.2) |
26.2 (12.5) |
23.5 (14.9) |
28.6 (19.1) |
25.8 (15.2) |
HVR |
8.5 (5.9) |
4.5 (1.2) |
10.8 (9.1) |
4.8 (1.5) |
15.1 (13.8) |
5.2 (1.9) |
19.7 (5.5) |
15.0 (7.6) |
26.5 (13.3) |
16.2 (6.0) |
28.0 (15.2) |
13.4 (3.4) |
P |
<.019 * |
<.002 *; < .048# |
<.006 *; <.018 # |
< .045 * |
< .27 * |
.035 *; .001 # |
RT, resistance training group, which performed high-load, low-velocity concentric–eccentric hamstring actions; RTC, resistance training concentric group, which performed high-load, low-velocity concentric-only hamstring actions; and HVT, high-velocity elastic band training.* Time,# Interaction