- Body weight
- Abdominals · Obliques
1) Start in the plank position. Get on all fours with your hands directly under your shoulders and knees under your hips. Extend your legs back behind and keep your core tight throughout the exercise.
1) Jump your feet in to the right - you're aiming for your knees to be on the outside of your right elbow. This will cause a slight twist in your trunk.
2) Jump your feet back so you're in the starting plank position.
3) Repeat on the other side.
Note: every time you jump your feet in, breathe out and 'crunch' your core.