Lie on your back on the vertical leg press sled with your back flat against the pad. Place your feet shoulder-width apart on the platform, heels flat. Push through your heels to extend your legs and lift the sled upward. Pause briefly at near full extension, then slowly bend your knees to lower back to start. Keep your core engaged and control the movement throughout.
Log your sled vertical leg press sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.