005 Kinematic Influences: Excessive ROM

Excessive Hip Internal Rotation

Excessive hip internal rotation drives excessive subtalar joint eversion. Subtalar joint eversion is a component of pronation = leads to over-pronated foot type.

Muscles responsible for this in the hip are:

• Tensor Faciae Latae (TFL)
• Gluteus medius - anterior division
• Adductors

Excessive Hip External Rotation

Excessive hip external rotation drives excessive subtalar joint inversion. Subtalar joint inversion is a component of supination = leads to over-supinated foot type.

Muscles responsible for this in the hip are:

• Piriformis
• Gluteus medius - posterior division
• Gluteus maximus
• Deep hip rotators