Variation: Double medicine ball leg curl

In This Series

• Introduction
• Variation: One-leg gym ball leg curl
• Variation: Gym ball hip raise and leg curl
• Variation: Double medicine ball leg curl

Two legs, two balls. Extra co-ordination is required to pull off this move, making your core work hard to keep your body straight.

Double medicine ball leg curl: Step 1

• Place a medicine ball beneath each calf.

Double medicine ball leg curl: Step 2

• Drag them both beneath you until your heels are on the balls.