Trunk leans or rotates with the arm
Spine compensates for restricted shoulder mobility.
Overactive muscles
Latissimus dorsiQuadratus lumborum
Corrective work
Foam RollLats↗Foam RollThoracic spine↗StretchLat stretch (kneeling overhead)↗Mobility · Upper Body
Shoulder CARs
Coaching cues
- Stand tall; brace core so the trunk doesn't move
- Move the arm through maximum range in every plane
- Flex, abduct, extend, adduct — fill every corner of range
- Slow — 5–8 seconds per full circle; own every millimeter
Common faults 2
Shoulder shrugs into elevation
Upper trap compensates for limited shoulder flexion/abduction.
Overactive muscles
Upper trapeziusLevator scapulae
Corrective work
Foam RollUpper traps↗StretchLevator scapulae stretch↗