self assisted inverse leg curl (on floor)

Lie flat on your back with your legs extended and your arms by your sides. Bend your knees and place your feet flat on the ground, hip-width apart. Lift your hips off the ground, engaging your glutes and hamstrings. Slowly curl your legs towards your glutes, keeping your hips lifted. Pause for a moment at the top, then slowly extend your legs back to the starting position. Lower your hips back down to the ground. Repeat for the desired number of repetitions.