
The towel leg curl works the hamstrings on a slippery floor without a machine.
Lie on your back, heels on a towel placed on a smooth floor, knees bent. Lift your hips.
Slide your heels forward until your legs are nearly straight while keeping your hips high, then pull them back toward your glutes.
The hips remain high. Start with just the return phase if it is too difficult.
Image and text: Bryl Lim / Everkinetic — recoloré et rastérisé — CC BY-SA 4.0, via Workout Guide. Original entry