Hamstring Stretch
This standing stretch folds you forward at the hips to lengthen the hamstrings, the muscles running down the back of your thigh. It's one of the simplest ways to build flexibility in that area, useful as part of a cooldown after training or on its own on rest days if tight hamstrings limit how deep you can squat or hinge.
Why it works
Folding forward at the hips while keeping the legs relatively straight puts the hamstrings under a sustained lengthening load, which is what drives flexibility gains over repeated sessions. Holding that position for a stretch of time, rather than bouncing in and out of it, lets the muscle and surrounding connective tissue gradually accept the longer length instead of triggering a reflexive tightening response.
Set up
- Stand with your feet hip-width apart.
- Keep a soft bend in your knees rather than locking them straight.
- Find a stable surface nearby if you need extra balance support.
- Warm up lightly beforehand if your hamstrings are cold or especially tight.
How to do it
- Hinge forward at your hips, letting your torso lower toward your legs.
- Let your arms hang or reach toward your feet without forcing the stretch.
- Stop when you feel a comfortable pull through the back of your thighs.
- Hold the position for 20 to 30 seconds, breathing steadily.
- Slowly roll back up to standing, one vertebra at a time.
Form cues
- Hinge from the hips, not just the lower back.
- Keep a soft bend in the knees throughout.
- Let your head and neck relax rather than straining to look forward.
- Ease into the stretch gradually instead of forcing depth.
Breathing: Breathe slowly and steadily while holding the stretch, letting each exhale relax a little further into the position rather than pushing deeper on inhale.
Common mistakes
Locking the knees straight, which shifts strain onto the lower back and knee joints.
Fix: Keep a slight, soft bend in your knees throughout the stretch so the hamstrings, not the joints, absorb the load.
Bouncing at the bottom of the stretch to try to go deeper.
Fix: Hold the position still once you reach a comfortable pull; a static, sustained hold builds flexibility more reliably than bouncing and reduces injury risk.
Rounding aggressively through the lower back to reach further down.
Fix: Let your depth be limited by your hamstring length, not by how far you can round your spine; stop where your back stays relatively neutral.
How to program it
- As a static stretch, holding it for 20 to 30 seconds, 2 to 3 times per leg or in one continuous fold, works well daily or after most training sessions.
- Save deep static holds for after training rather than immediately before heavy lifting, since prolonged static stretching right before strength work can temporarily reduce power output.
- Pair it with hip and calf stretches for a fuller lower-body cooldown routine.
Safety notes
- Ease into the stretch gradually and stop at a point of mild tension, not pain.
- Avoid this stretch during an acute hamstring strain; let an injury settle before returning to lengthening work.
Exercise profile
- Force
- Static
- Mechanics
- Isolation
- Category
- Stretching
Frequently asked questions
How long should I hold a hamstring stretch?
20 to 30 seconds is a solid hold time for most people, repeated 2 to 3 times if you want a deeper session.
Can I do a hamstring stretch without any equipment?
Yes, this standing version needs nothing but floor space, making it one of the easiest stretches to do anywhere.
Why do I feel this stretch more behind one knee than in my thigh?
A pull right behind the knee rather than through the muscle belly can mean you're locking the knee too straight. Add a slight bend to shift the stretch back into the muscle itself.