LEG EXTENSION
To perform this exercise correctly lower the lifting arm and position your legs behind the oversized roller. Stack on some weights (always double checking everything is securely locked in place) before extending your legs until they are straight, holding the tension in your quads. Slowly lower them back down and repeat.
Hot tip: Adjust the support rollers so they apply just a little bit of pressure to your legs as this will prevent them from rising during the exercise, minimising any risk of injury from locking out at full extension.
LEG CURL
To perform this exercise correctly bring the lifting arm back to a higher position. Sit down, wrap your legs over the foam roller, and press down. Once you've reached the bottom pause for a moment before slowly going back to the starting position.
It's important to remember that before loading up for either of these exercise that you check the lock pin is in the correct position and that everything is safe and secure.