Standing Single Leg Curl
Standing Single Leg Curl Exercise Description
The standing single-leg curl is a bodyweight knee‑flexion exercise that targets the hamstrings (biceps femoris, semitendinosus, semimembranosus) of the non‑weight‑bearing leg. The gastrocnemius assists, while the stance leg hip and ankle musculature and the trunk stabilizers work isometrically to keep you upright. Performed correctly, the movement isolates the knee by keeping the thighs aligned and the pelvis level, minimizing hip motion. It’s a useful way to practice hamstring tension and single‑leg control without equipment. Keep the motion slow and controlled to emphasize the working hamstrings and to maintain balance throughout the range of motion.
- Muscle Groups: Hamstrings
- Target Muscles: Biceps Femoris - Long Head, Semimembranosus, Semitendinosus
- Assisting Muscles: Gastrocnemius - Lateral Head, Gastrocnemius - Medial Head
- Stabilizing Muscles: Gluteus Medius, Multifidus, Quadratus Lumborum, Soleus, Transversus Abdominis
- Body Area: Lower Body
- Body Parts: Legs, Upper Legs
- Body Surface: Back
- Body Symmetry: Unilateral
- Equipment: Bodyweight
- Exercise Patterns: Other
- Exercise Type: Strength
- Functional Grouping: Hip Extensors, Knee Flexors
- Joint Involvement: Single-joint
- Muscle Location: Inner Hamstring, Outer Hamstring
- Movement Direction: Other
- Muscle Position: Posterior
- Gender: Male
How To Do The Standing Single Leg Curl Exercise
‘- Stand tall with feet hip‑width. Lightly hold a stable support if needed.
– Set posture: neutral spine, ribs stacked over pelvis, shoulders relaxed.
– Shift weight to one leg; keep pelvis level and hips square forward.
– Lift the other foot slightly off the floor with the knee pointing straight down.
– Keep both thighs parallel; do not let the lifted thigh drift forward or out.
– Flex the knee of the lifted leg, drawing the heel toward the glute without moving the thigh.
– Stop at a comfortable end range where the pelvis and torso stay still.
– Briefly pause; maintain even pressure through the stance foot.
– Lower the foot under control until the knee is nearly straight—avoid locking out.
– Breathe steadily; keep the core gently braced and eyes forward.
– Common faults to avoid: arching the low back, hiking one hip, swinging the thigh, or rushing the lowering phase.
Standing Single Leg Curl Tips
‘- Stand tall with feet hip-width and lightly hold a stable support if needed to help balance.
– Keep a neutral spine with ribs stacked over the pelvis and shoulders relaxed.
– As you shift weight to one leg, keep the pelvis level and hips square facing forward.
– Lift the other foot with the knee pointing straight down and keep both thighs parallel.
– Do not let the lifted thigh drift forward or out; keep the thigh still as the knee bends.
– Draw the heel toward the glute by flexing only the knee of the lifted leg.
– Move only through a range where the pelvis and torso stay still, then briefly pause.
– Maintain even pressure through the stance foot throughout the movement.
– Lower the foot under control until the knee is nearly straight, avoiding locking out.
– Breathe steadily, keep the core gently braced, eyes forward, and avoid arching the low back, hiking one hip, swinging the thigh, or rushing the lowering phase.
Standing Single Leg Curl Beginner Introduction
The standing single-leg curl is a simple bodyweight movement that emphasizes bending the knee of a free leg while the other leg stays planted on the ground. The curling leg works the hamstrings at the back of the thigh, with help from the calf, while the standing leg, hips, and core contribute to staying steady and upright. The action centers around the knee joint of the moving leg, with the upper legs remaining lined up so the effort stays on the muscles that bend the knee rather than turning into a hip exercise.
This drill highlights slow, deliberate motion and balance on one leg. The stance leg supports the body while the lifted leg smoothly moves the heel toward the backside and then back down again, with the trunk held stable rather than swaying or arching. Because it relies only on bodyweight and a controlled tempo, it offers a way to explore hamstring tension and single-leg stability without any equipment.