Raised Leg Knee Flexor Stretch
Raised Leg Knee Flexor Stretch Exercise Description
The Raised Leg Knee Flexor Stretch is a supine hamstring stretch that lengthens the muscles on the back of the thigh while keeping the spine supported. You’ll flex the hip with the knee extended, targeting the hamstrings (semitendinosus, semimembranosus, and biceps femoris). A strap or towel can help maintain alignment without straining the neck, shoulders, or low back. Keeping a neutral pelvis and quiet ribcage prevents compensation from lumbar extension and focuses the stretch where you want it—the posterior thigh. Dorsiflexing the ankle (toes toward shin) can increase tension on the gastrocnemius, while a neutral foot keeps the emphasis on the hamstrings. This stretch is commonly used to improve lower-body flexibility for hinge and stride patterns.
- Muscle Groups: Hamstrings
- Target Muscles: Biceps Femoris - Long Head, Semimembranosus, Semitendinosus
- Assisting Muscles: Gastrocnemius - Lateral Head, Gastrocnemius - Medial Head
- Stabilizing Muscles: Multifidus, Rectus Abdominis, Transversus Abdominis
- Body Area: Lower Body
- Body Parts: Legs, Upper Legs
- Body Surface: Back
- Body Symmetry: Unilateral
- Equipment: Bodyweight
- Exercise Patterns: Other
- Exercise Type: Stretching
- 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 Raised Leg Knee Flexor Stretch Exercise
‘- Lie on your back on a mat. Extend both legs, toes pointing up.
– Keep your pelvis neutral: light abdominal brace, low back gently contacting the floor.
– Loop a strap or towel across the midfoot of your right foot and hold the ends with relaxed shoulders.
– Keeping the right knee extended (not locked), raise the right leg by flexing at the hip until you feel a firm stretch along the back of the thigh.
– Keep hips level and square; avoid hiking the right hip or rotating the pelvis.
– Maintain a long neck and quiet ribcage; do not pull your head or round your shoulders.
– Optional: dorsiflex the right ankle (toes toward shin) to shift more stretch toward the calf; return to neutral if the sensation moves behind the knee.
– The left leg stays extended with heel grounded; if your low back lifts, slightly bend the left knee to keep the spine neutral.
– Breathe steadily and relax into the position without bouncing.
– Lower the right leg with control and repeat on the other side.
Raised Leg Knee Flexor Stretch Tips
‘- Start lying on your back with both legs extended and toes pointing up.
– Keep your pelvis neutral with a light abdominal brace and your low back gently contacting the floor.
– Loop the strap or towel across the midfoot and hold the ends with relaxed shoulders.
– Raise the working leg by flexing at the hip with the knee extended (not locked) until you feel a firm stretch along the back of the thigh.
– Keep your hips level and square; avoid hiking the working hip or rotating the pelvis.
– Maintain a long neck and quiet ribcage; do not pull your head or round your shoulders when using the strap.
– Optionally dorsiflex the ankle (toes toward shin) to shift more stretch toward the calf; return the foot to neutral if the sensation moves behind the knee.
– Keep the nonworking leg extended with the heel grounded; if your low back lifts, slightly bend that knee to keep the spine neutral.
– Breathe steadily and relax into the position without bouncing.
– Lower the raised leg with control before repeating on the other side.
Raised Leg Knee Flexor Stretch Beginner Introduction
The Raised Leg Knee Flexor Stretch is a floor-based flexibility exercise performed lying on the back, designed to lengthen the muscles along the back of the thigh while the spine rests against the ground. One leg stays long on the mat, while the other is lifted with the knee straight and the hip bending, creating a focused stretch through the hamstrings. A strap or towel placed around the middle of the foot supports the raised leg so the neck, shoulders, and lower back stay relaxed rather than doing the work of holding the position.
The position emphasizes calm, steady breathing and a stable trunk, so the movement happens mostly at the hip instead of the lower back. Careful alignment of the hips helps direct the feeling into the back of the thigh rather than into twisting or arching through the spine. In some versions, drawing the toes toward the shin brings more sensation into the calf, while a more relaxed foot keeps attention on the hamstrings. This stretch often appears in routines aimed at improving flexibility for hip hinging and long, powerful steps.