Try this move with or without weights.
- Hold a lunge position with your left leg forward and right knee hovering over the ground. If you're using weight for this, hold a five- to 10-pound weight with both hands close to your chest.
- Keep your core engaged, and twist back and forth to the left and right.
- Make sure you're twisting with control, bringing your torso back to centre in between twists.
- Alexia says to do this for 30 seconds or for 10 to 12 reps — a twist to the right and left equals one rep — on each leg. Complete three to four rounds.