Sets: 2-3 Reps: 10-15

Lie on the floor with fingers touching your forehead and shoulders off the ground. Hold your thighs vertical with your knees at 90°.

Sets: 2-3 Reps: 10-15

Twist your upper body to the left as you bring your left knee up to touch your right wrist. Return to the start, and that’s one rep. Repeat on the other side.

Sets: 2-3 Reps: 10-15

Lie on the floor with your feet flat, holding a medicine ball with your arms outstretched behind you.

Sets: 2-3 reps:10-15

Quickly sit up by contracting your abs and using them to thrust the medicine ball in front of you (don’t let go). Keep your arms straight and lower yourself quickly before repeating the move.

Sets: 1-2 Reps: hold for 30 seconds to two minutes

Place your toes on a bench and your forearms on a stability ball so that your body forms a straight line from shoulders to ankles. Contract your abs and hold for 30 seconds to two minutes.