Reps: 10, each arm (alternating sides)
- Begin sitting with your heels planted about two feet from your butt, holding the weights at chest level with a slight bend in your elbows. Lean back a few inches, pulling your abs toward your spine to keep your spine long and straight.
- The left arm remains still, as you open your right arm to the side, making sure the weight doesn't go beyond your shoulder.
- Bring your right arm back to centre to complete one rep. Switch arms and repeat on the other side.
Holding the V-sit will works the abs, but they will kick in even more as you move your arm from centre. The fly works the shoulders and chest.