Stretch · beginner · 30s hold

Knee-to-Chest Stretch

Single knee-to-chest is among the safest lumbar flexion exercises and is widely prescribed in the first 48 hours of an acute back episode. It decompresses the posterior lumbar structures without loading the discs in flexion under bodyweight.

Lumbar paraspinalsGlute maxHip flexors
Person lying on back drawing right knee toward chest with both hands behind thigh

Illustration · follow the steps below for the actual technique

How to do it

  1. 1

    Lie on your back, knees bent, feet flat on the floor

    Supine start

  2. 2

    Bring your right knee up toward your chest

    Knee up

  3. 3

    Hold behind your thigh (not on the kneecap) and draw the knee gently in

    Hands behind thigh

  4. 4

    Keep your left leg either bent on the floor or extended long

    Other leg relaxed

  5. 5

    Hold 30 seconds. Breathe out as you draw the knee in. Then switch sides

    Breathe and release

The evidence

Single knee-to-chest is among the safest lumbar flexion exercises and is widely prescribed in the first 48 hours of an acute back episode. It decompresses the posterior lumbar structures without loading the discs in flexion under bodyweight.

Citation: Hayden JA, van Tulder MW, et al. (2005). Systematic review of exercise therapy for chronic low back pain. Annals of Internal Medicine

Last reviewed 2026-05-12 · lowerbackstretches.com