Table 1 Abdominal curl up exercise muscle activation levels (% MVC, standard deviation in brackets), average difference between surfaces and number of participants whose change in activity was greater than 5% MVC during
Surface | Muscles studied during abdominal curl up exercise | |||
|---|---|---|---|---|
| Â | Rectus Abdominis | External Oblique | Internal Oblique | Erector Spinae |
Ball | 29.0 (33.1) | 23.2 (20.6) | 32.9 (27.6) | 3.2 (3.5) |
Bench | 25.7 (16.6) | 21.1 (13.4) | 27.1 (16.4) | 6.2 (10.6) |
Difference | 3.36(20.6) | 2.17 (11.65) | 5.82 (18.2) | 3 (7.61) |
Increase | 2 | 2 | 4 | 0 |
Decrease | 2 | 3 | 2 | 1 |