Side-lying double leg lift
Lie on your side with legs stacked, head on bottom arm, top arm on the floor. Squeeze legs together and lift off the floor. Hold for a breath, then return to start. Do 10 reps and switch sides.
Reverse plank with leg raise
Sit with legs outstretched, hands behind your bum, fingers forward. Press up onto your hands and lift your right leg, keeping hips raised. Hold for 3 seconds. Repeat 5 times for each leg.