One Knee To Chest
The one knee to chest stretch lies you flat on your back and pulls a single bent knee up toward your chest, gently stretching the glute and lower back on that side while the opposite leg stays extended on the floor. It's a low-effort, low-risk stretch that works well as a first move after waking up or as a cooldown following a lower-body session. Because only one side moves at a time, it's easy to compare tightness left to right and spend more time on whichever hip actually needs it.
Why it works
Pulling the knee toward the chest flexes the hip on that side, which lengthens the glute and the muscles along the lower back that resist that motion in daily life, most of which spend the day either sitting still or stabilizing the spine. Keeping the other leg flat and extended on the floor anchors the pelvis so the stretch stays local to the working hip instead of letting the whole lower back round up off the ground. Because the stretch is entirely passive, held with your hands rather than driven by muscle effort, it's a gentle way to ease tension without adding any real load to the spine.
Set up
- Lie flat on your back with both legs extended on the floor.
- Keep your head resting comfortably, not straining to look at your knee.
- Bring both hands to shin height on the leg you're about to stretch.
- Keep the opposite leg relaxed and flat on the floor throughout.
How to do it
- Bend one knee and draw it up toward your chest using your hands.
- Pull gently until you feel a stretch through your glute and lower back on that side.
- Keep your opposite leg flat on the floor rather than letting it bend or lift.
- Hold the position, breathing steadily, for the planned duration.
- Release slowly and lower the leg back down to the floor.
- Switch sides and repeat with the other knee.
Form cues
- Opposite leg stays flat on the floor.
- Pull with your hands, not by jerking the leg.
- Head stays relaxed on the floor.
- Breathe steadily through the hold.
- Stretch to tension, not to pain.
Breathing: Breathe slowly and evenly while holding the stretch, letting each exhale ease you a little deeper rather than forcing the pull.
Common mistakes
Letting the opposite leg bend or lift off the floor during the stretch.
Fix: Actively press that heel down into the floor so the pelvis stays anchored and the stretch stays isolated to the working hip.
Yanking the knee in hard to force a deeper stretch.
Fix: Pull gently and let the tension ease off gradually instead of forcing the range with a sudden tug.
Lifting the head and straining the neck to look down at the knee.
Fix: Keep your head resting flat on the floor or on a small pillow, and let the stretch happen without needing to watch it.
How to program it
- Hold each side for 20 to 30 seconds and repeat once or twice if the hip still feels tight afterward.
- It's gentle enough to do daily, especially first thing in the morning or right after a lower-body workout.
- Pair it with a stretch for the opposite muscle group, like a kneeling hip flexor stretch, for a more complete lower-body reset.
- There's no real load to progress here; if the stretch stops feeling like enough, a longer hold matters more than adding intensity.
Safety notes
- Ease off the pull if you feel any sharp sensation in your lower back rather than a stretch through the glute.
- Keep the motion slow and controlled rather than bouncing the knee toward your chest.
- Stop if the position aggravates existing hip or lower back discomfort, and try a gentler range instead.
Exercise profile
- Force
- Static
- Mechanics
- Compound
- Category
- Stretching
Frequently asked questions
How long should I hold the one knee to chest stretch?
Twenty to thirty seconds per side is a good target. You can repeat it once or twice if the hip still feels tight.
What does the one knee to chest stretch work?
Mostly the glute and the lower back on the side being pulled, with the opposite hip staying anchored by the extended leg.
Can I do this every day?
Yes, it's gentle enough for daily use, and many people find it a comfortable way to start or end the day.
Why do I feel this more on one side than the other?
A difference in tightness between hips is common, often from posture, activity habits, or which leg does more work during the day. Spend a little extra time on the tighter side rather than matching duration exactly.