A compound leg and core exercise, the stability ball jackknife targets your iliopsoas (hip flexors). Your abs contract dynamically only with waist flexion.
An advanced core exercise, use the standing ab wheel rollout only after you have mastered the walkout, front plank, and wheel rollout on your knees.
Use the dumbbell side bend to target your obliques, strengthen the lateral flexion of your spine, improve spinal mobility, and strengthen your core.
The barbell rollout is an great auxiliary core exercise that targets your iliopsoas (hip flexors), not your rectus abdominis (which acts as a stabilizer).
Target your internal and external obliques, improve your spinal flexibility, and strengthen the lateral flexion of your spine with the stability ball side bend.
Strengthen your internal and external obliques, as well as the primal twisting movement pattern of your body, using the lying bent-knee oblique twist.
Work your rectus abdominis (the target) and internal and external obliques (the synergists) with the machine leg raise crunch, an isolation and pull exercise.
The stability ball leg extension crunch combines an isolation push exercise (leg extension) with an isolation pull exercise (crunch) to produce a rare compound...
The seated barbell twist is an auxiliary core exercise that targets your internal and external obliques. Use it to strengthen the twisting movement pattern of...
The vertical leg crunch was found to produce 29% more mean activity in the rectus abdominis and 116% more mean activity in the obliques than the regular crunch!
The weighted Russian twist is an auxiliary core exercise that targets your internal and external obliques. You can use either a weight plate, a dumbbell or a...
The bicycle crunch was ranked in one study as the most effective exercise for your abs and the second most effective exercise for your obliques!