Table 3.
Two-way analysis of variance results and means (SD) for peak gluteus maximus electromyography (EMG) during three different exercises with and without an applied load to the knee.
| Exercise Type | No Applied Load Mean (SD) | Applied Knee Load Mean (SD) | Exercise Main Effect Mean (SD) |
|---|---|---|---|
| Double Leg Squat | 22.0 (16.6) | 25.8 (18.7) | 23.9 (17.7) |
| Step-Up | 33.5 (13.4) | 37.8 (11.4) | 35.7 (12.4) |
| Single Leg Squat | 40.5 (16.8) | 36.7 (11.2) | 38.6 (14.0) |
| Load Main Effect Mean (SD) | 32.0 (15.6) | 33.4 (13.8) |
Main Effect of Exercise (Double-Leg Squat, Step-Up, Single-Leg Squat) p = 0.000
Main Effect of Load (No Applied Load, Applied Load) p = 0.042
Interaction Effect of Exercise and Load p = 0.087
*Note: Data are expressed as a percentage of maximum voluntary isometric contraction (% MVIC).