Electrotherapy Doses Calculator

Moment Arm Calculator

Visual Biomechanics Tool

1. Select Muscle (Insertion Dist):

● Insertion Distance (r) cm

Joint Angle 90° 0° = Extended | 90° = Flexed

Calculated Moment Arm (d)

5.00 cm

Formula: d = r × sin(Angle)

Axis Bone Muscle Pull Moment Arm

Biomechanical Insight: The ability of a muscle to produce torque depends heavily on the Moment Arm. Leverage is maximized at 90° because sine(90) = 1.