: Focus on slow, controlled rotation rather than speed to maximize muscle fiber recruitment in the obliques.
: Start in a high plank. Alternately tap your knees to the floor lightly to engage the lower abdominals without losing your spinal alignment. : Focus on slow, controlled rotation rather than
: Lie on your back and reach for your heels, alternating sides to target the "side abs." : Focus on slow
: It is better to do 5 slow, perfect reps than 20 fast ones with poor form. : Focus on slow, controlled rotation rather than
: Exhale on the "effort" phase (the crunch or the lift) to deepen the abdominal engagement.
Perform each move for 45 seconds, with 15 seconds of rest in between.