ADDuCTOR MAGNuS
Joint Action performed by the Hip
- Adduction
- Horizontal adduction
- Extension
- External rotation (during adduction)
Origin: 1. Pubis
- Ischium
Insertion: Femur (medial) – A. Linea aspera 2. Medial condyle (adductor tubercle)
GRACILIS
Joint Action performed by the Hip
- Adduction
- Horizontal adduction
Joint Action performed by the Knee
- Flexion
Origin: Pubis – A. Body 2. Inferior ramus
Insertion: Tibia (superior) – Medial surface
Common distortions due to tightness (all adductors) is excessive hip adduction during gait. This
will increase stress on the abductor muscles in order to hold the leg straight. It creates medial
force on the knee, causing medial buckling.
PSOAS MAJOR
Joint Action performed by the Hip and Spine
- Flexion
- Spine (thoracic & lumbar) – lateral flexion