Seated Single Leg Curl On Chair
Seated Single Leg Curl On Chair Exercise Description
The Seated Single Leg Curl on Chair trains the back of the thigh by flexing the knee against floor friction—no machines required. From an upright, stable seat, you slide one heel toward the chair and control the return, emphasizing the hamstrings (biceps femoris, semitendinosus, semimembranosus). The gastrocnemius assists because it crosses the knee and helps with knee flexion. This unilateral setup promotes focused control of the knee and pelvis while you create tension through the working leg. Keeping a neutral spine and steady hips is key so the movement happens primarily at the knee joint. You can subtly increase resistance by pressing the heel down to raise friction, or decrease it by using a smoother surface.
- Muscle Groups: Hamstrings
- Target Muscles: Biceps Femoris - Long Head, Semimembranosus, Semitendinosus
- Assisting Muscles: Biceps Femoris - Short Head, Gastrocnemius - Lateral Head, Gastrocnemius - Medial Head
- Stabilizing Muscles: Gluteus Medius, Iliocostalis, Longissimus, Multifidus, Transversus Abdominis
- Body Area: Lower Body
- Body Parts: Legs, Upper Legs
- Body Surface: Back
- Body Symmetry: Unilateral
- Equipment: Bodyweight, Chair
- Exercise Patterns: Other
- Exercise Type: Strength
- Functional Grouping: Hip Extensors, Knee Flexors
- Joint Involvement: Single-joint
- Muscle Location: Inner Hamstring, Outer Hamstring
- Movement Direction: Horizontal
- Muscle Position: Posterior
- Gender: Male
How To Do The Seated Single Leg Curl On Chair Exercise
‘- Use a sturdy chair. Sit near the front edge, torso tall, shoulders relaxed, neutral spine.
– Place the non-working foot flat under the knee for balance. Hold the chair sides lightly.
– Extend the working leg slightly forward with the heel on the floor (light contact), toes pointing forward.
– Square the hips. Keep the thigh of the working leg vertical; avoid leaning back or rotating.
– Press the heel gently downward to create friction.
– Flex the knee to slide the heel toward the chair under control; keep heel contact and the knee tracking in line with the second toe.
– Stop when the heel is under the knee (or before the pelvis tilts). Maintain a steady torso.
– Slowly reverse: slide the heel forward to the start while resisting the movement with the hamstrings.
– Keep the motion smooth; avoid rocking the trunk, lifting the heel, or letting the knee cave inward or outward.
– Repeat on the other leg. Adjust friction (more heel pressure = harder; smoother surface = easier) to match control.
Seated Single Leg Curl On Chair Tips
‘- Sit near the front edge of the chair with a tall torso, relaxed shoulders, and a neutral spine.
– Place the non-working foot flat under its knee to help with balance.
– Keep the working leg’s heel lightly on the floor with toes pointing straight forward.
– Square your hips and keep the working thigh vertical instead of leaning back or rotating.
– Press the working heel gently into the floor to create friction before you start sliding.
– As you flex the knee, slide the heel toward the chair under control, keeping heel contact.
– Track the working knee in line with the second toe; avoid letting it cave inward or drift outward.
– Stop the curl when the heel is under the knee or just before the pelvis starts to tilt.
– Reverse the movement slowly, sliding the heel forward while resisting with the hamstrings for a smooth motion.
Seated Single Leg Curl On Chair Beginner Introduction
The Seated Single Leg Curl on Chair is a simple, floor-friction exercise that targets the back of the thighs while also involving the calves. It uses a regular chair and the resistance created as the heel glides along the ground, so it works well in small spaces without specialized equipment. One leg works at a time, which highlights side-to-side differences and allows attention on how the knee, hips, and spine are behaving throughout the motion.
During the curl, the working heel travels toward the chair and then out again, with the thigh staying largely under the hip so the action centers around bending and straightening the knee. The supporting leg and hands help with balance, while an upright torso and steady hips encourage involvement from the core and promote organized posture. Extra challenge comes from pushing the heel more firmly into the floor to boost friction; less pressure or a smoother surface reduces the load. This makes the movement easy to scale for different strength levels while emphasizing smooth, deliberate control rather than momentum.