1. The inverted crunch
Instead of lifting your upper body, lift your lower body. This is a really small movement with all the emphasis on your lower abs – often a forgotten area.
2. Abs and obliques
As you come up, twist your upper body so your right elbow points to your left knee and vice versa. You don’t want your elbow to touch the knee, just point to it.
3. Ab straps
This is the best overall ab exercise. Hang down, and lift your knees up to your chest and down again in a controlled motion. To make it harder, use a straight leg raise. Keep it slow.
4. The total crunch
Instead of lifting just your upper or lower body, lift them both simultaneously. Try to touch your knees and elbows, to work both your upper and lower abs at the same time.
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