HingeBW
Gray Cook's rock-back squat-hinge hybrid used to restore posterior hip capsule mobility and teach the hips-back hinge pattern; performed by pulling both knees to the chest from a deep squat/hinge position to open up the posterior hip.
Demo: Movement/FMS instructional
Sets
1
Reps
5-8 breaths held
Rest
0s
Contraindications
Low risk; avoid if deep squat position provokes knee pain (adjust depth) or in cases of acute posterior hip impingement. Not a strength exercise — used purely as a mobility/patterning regression.Setup
Squat down and grip both shins or ankles with the hands, feet flat if possible.
Execution
- 1From a deep squat, wrap the arms around the shins and pull the knees toward the chest/armpits
- 2Rock the pelvis backward, feeling a stretch through the posterior hip and low back
- 3Hold the stretch for several breaths
- 4Rock forward slightly and repeat for the prescribed reps or hold duration
Key cues
- Pull the knees toward the armpits, not just the chest
- Let the hips rock back, keep the position relaxed
- Breathe into the stretch
- Heels down if mobility allows
Common faults
- Rounding excessively through the upper back instead of the hips
- Rushing without holding a real stretch
- Losing balance backward without support
- Forcing heels down at the expense of a rounded lumbar spine
Tweaks
- Hold onto a rack or door frame for balance assistance
- Progress to the Cook Hip Lift once hip mobility and control improve
- Use as a pre-hinge warm-up drill
Progressions
Muscles
Primary: Gluteus Maximus, Hip Rotators
Secondary: Lower Back, Hamstrings
Notes
Frequently paired with the Cook Hip Lift as a two-drill regression pair for lifters with poor hip hinge patterning or stiff posterior hips.
Sources
- Cook Hip Lift - FMS Corrective Exercise Demonstration
- NSCA - Corrective Exercise for Hip Extension Patterning
Attribution: Gray Cook