Exercise guide
Lying Lower Back Knee To Chest
- Beginner
- Compound
- Timed hold
- Upper legs
- Waist
This exercise gently stretches the glutes and lower back, improving hip mobility and relieving tension in the lumbar spine. It is an effective recovery or warm-up move for enhancing lower body flexibility and core stability.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Lie flat on your back on a mat with your legs fully extended.
- Place your arms at your sides and relax your head and shoulders against the floor.
- Maintain a neutral spine with your gaze directed toward the ceiling.
How to do it
- Exhale as you slowly pull one knee toward your chest, grasping your shin or the back of your thigh with both hands.
- Pull the knee as close to your torso as comfortable, holding the stretch for 2-3 seconds.
- Inhale as you slowly lower the leg back to the starting position with control.
- Repeat the movement with the opposite leg, alternating sides for the desired number of repetitions.
Form checklist
- Keep the non-working leg pressed flat against the floor.
- Ensure your head and neck remain relaxed on the mat throughout the movement.
- Avoid holding your breath; time the pull with a deep exhale.
- Keep your lower back in contact with the floor as you pull the knee in.
Pro tips
- To deepen the stretch in the glute, pull the knee slightly outward toward your armpit rather than straight to the center of the chest.
- Focus on 'heavy' hips, allowing your pelvis to sink into the floor to maximize the release in the lumbar region.
Make it harder
- Perform a double-knee-to-chest tuck, pulling both legs in simultaneously to increase the stretch on the lower back.
- Lift your forehead toward your knee at the peak of the movement to incorporate a gentle abdominal contraction.
Frequently asked
- What muscles does the lying lower back knee to chest work?
- The lying lower back knee to chest primarily targets the abs and obliques, and also works the erector spinae and hip flexors as secondary muscles.
- What equipment do you need for the lying lower back knee to chest?
- The lying lower back knee to chest requires no equipment — just your body weight.
- Is the lying lower back knee to chest good for beginners?
- Yes. The lying lower back knee to chest is a beginner-friendly movement and a strong foundation to build on.