1A: Lying flat on the floor, knees bent, press hands into floor.
1B: Pressing hands into floor, raise legs lifting hips and lower back off the ground. Lower gently to starting position.
Repeat 2x20 reps.
2A: Lying flat, hands behind head, let legs fall to one side.
2B: Crunch upwards keeping body straight and legs to one side. This works obliques and side of waist.
Repeat for 20 reps on each side.
3A: Holding ball, sit up with legs bent.
3B: As you are coming upwards twist the body to left or right aiming to put ball on ground. Roll back to starting position.