10x inclined sit-ups (on one of those inclined bench things)
10x supermen (10 each side) (on swiss ball)
10x knee lifts (balanced vertically on fore arms)
10x upper body lifts (on a inclined bench that clamp the achilles)
Its not much. But once you've done 4 reps, it starts to really kick in.
Core circuits.
10x inclined sit-ups (on one of those inclined bench things)
10x supermen (10 each side) (on swiss ball)
10x knee lifts (balanced vertically on fore arms)
10x upper body lifts (on a inclined bench that clamp the achilles)
Its not much. But once you've done 4 reps, it starts to really kick in.