Hip Abductor Moment Arm Calculator by Pelvic Width

Calculate hip abductor muscle moment arm based on femoral neck-shaft angle and pelvis width. Longer moment arm reduces abductor force requirement during single-leg stance

Each component has a specific meaning:

• Femoral neck-shaft angle — The femoral neck-shaft angle recorded for the scenario being assessed.
• Pelvis width — The pelvis width recorded for the scenario being assessed.

Note: Interpret the hip abductor moment arm result against the thresholds and context described above.

Enter the femoral neck-shaft angle, pelvis width for the scenario you are assessing. Calculate hip abductor muscle moment arm based on femoral neck-shaft angle and pelvis width. Longer moment arm reduces abductor force requirement during single-leg stance. Use the hip abductor moment arm result to inform your calculation.