Hip/Pelvis Transverse Plane

0-20% gait cycle: end ROM
-pelvis
-femur
-net

-pelvis: 5º forward rotation (reference limb) (LR)
-femur: medially rotates
-net: medial rotation

0-20% gait cycle: torque demand

external medial rotation torque

0-20% gait cycle: muscle activity

hip lateral rotators eccentrically

0-20% gait cycle: functional significance

-shock absorption
-limb stabilization

20-60% gait cycle: end ROM

-pelvis: 5º backward rotation
-femur: laterally rotates slightly
-Net: hip Medial rotation

20-60% gait cycle: torque demand

external LR torque

20-60% gait cycle: muscle activity

hip medial rotators

20-60% gait cycle: functional significance

-contralateral limb advancement
-trailing limb posture

60-100% gait cycle: end ROM

-pelvis: 5º forward rotation
-femur: medially rotates
-Net: hip lateral rotation until terminal swing

60-100% gait cycle: torque demand

negligible

60-100% gait cycle: muscle activity

hip flexors and adductors
-mainly in sagittal and frontal plane

60-100% gait cycle: functional significance

limb position for initial contact