Machine or band
Moves the legs apart against resistance, isolating the side-hip muscles that keep the pelvis level when you walk or lunge.
| Muscle | Role | Action |
|---|---|---|
| Gluteus medius | Primary | Abducts the hip, its front fibres rotate it inward, and it keeps the pelvis level |
| Gluteus minimus | Primary | Abducts and medially rotates the hip |
| Tensor fasciae latae | Secondary | Abducts, flexes and medially rotates the hip |
| Gluteus maximus | Secondary | Extends and laterally rotates the hip |
| Sartorius | Secondary | Flexes, abducts and laterally rotates the hip; flexes the knee |
Primary muscles are the prime movers; secondary muscles assist or stabilise. The balance shifts with grip, stance, range of motion and technique.