Hip Joint: Transverse-Plane Kinematics

0% · Heel strike

View from aboveAnteriorL ASISR ASIS≈ 2.5° external rotation
Rotations drawn ×3
0%20%40%60%80%100%StanceSwing
Hip internal / external rotation (°)

Femur relative to pelvis

+ Internal rotation− External rotation
-8°-4°0°+4°+8°020406080100Heel strikeFoot flatMidstanceHeel offToe offFeet adjacentTibia verticalNext heel strikeINTERNAL ↑EXTERNAL ↓Right hip rotation (°)Percent of gait cycle
Gait cycle: 0%
0:00 / 2:01
Chapters
Explanations and references

Walking → Hip Joint → Horizontal Plane → Kinematics

Hip angle = femur relative to the pelvis, not the femur’s rotation in space. Approximate readings for the illustrated walking pattern.

Learning objectives

Follow right hip internal and external rotation — femur relative to the pelvis — through one walking cycle.

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