Exercise guide
Ring Single Leg Curl With Towel
- Intermediate
- Isolation
- Rep-based
- Lower legs
This unilateral exercise targets the hamstrings and glutes through a sliding motion, while the core stabilizes the pelvis to prevent rotation. It is highly effective for building eccentric hamstring strength and improving knee stability using a towel as a low-friction slider.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Lie on your back on a smooth, hard floor with one heel centered on a folded towel.
- Bend the non-working leg and pull the knee toward your chest or hold it vertically to isolate the working side.
- Place your arms flat on the floor by your sides with palms down for stability.
- Lift your hips off the ground into a single-leg bridge position, creating a straight line from your shoulders to your working knee.
How to do it
- Inhale and slowly slide your heel away from your glutes until your leg is fully extended, keeping your hips hovering just above the floor.
- Exhale and pull your heel back toward your glutes by forcefully contracting your hamstrings.
- Drive your hips back up into the bridge position as the heel returns to the start.
- Maintain a controlled 3-second tempo on the way out and a powerful 1-second pull on the way in.
Form checklist
- Keep your hips level and squared to the ceiling; do not let the working hip drop or tilt.
- Maintain a strong core brace to prevent your lower back from arching excessively.
- Ensure the movement is driven by the hamstring, not by swinging the non-working leg for momentum.
- Keep your toes pointed toward the ceiling to maximize tension in the posterior chain.
Pro tips
- Dig your heel hard into the floor throughout the entire movement to increase friction and muscle fiber recruitment.
- Focus on a slow, 'resisting' eccentric phase to build maximum structural integrity in the hamstring tendons.
Make it harder
- Cross your arms over your chest to remove the floor support and challenge your rotational core stability.
- Add a 3-second isometric hold at the point of full leg extension before pulling back.
Frequently asked
- What muscles does the ring single leg curl with towel work?
- The ring single leg curl with towel primarily targets the abs, glutes, and hamstrings, and also works the obliques as secondary muscles.
- What equipment do you need for the ring single leg curl with towel?
- The ring single leg curl with towel requires no equipment — just your body weight.
- Is the ring single leg curl with towel good for beginners?
- The ring single leg curl with towel is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.
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