Lie face down on the leg curl machine with your knees just off the edge of the bench and your ankles secured under the padded lever. Grip the handles for stability and keep your hips pressed firmly into the pad. Bend your knees to curl your heels toward your glutes, squeezing the hamstrings at the top, then slowly lower the weight back to the starting position with controlled movement.
Log your lever lying leg curl sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.