Lift
Side view
Drag to orbit, pinch or scroll to zoom

Side-lying hip abduction

Lying on the right side with both legs straight; the top leg lifts to about 40° and lowers. Built upright and rotated onto its side.

-15°Ankle dorsiflexion
3°Knee flexion
0°Hip flexion
90°Trunk from vertical
158°Arm to trunk
120°Elbow flexion
4Ankle spacing, cm
80Hand spacing, cm
-2Knee outside ankle, cm
–Knee cave, ° inside toe line
–Load left / right, %
-17Pelvis drop, cm

Load and joint demand

Bodyweight exercise: the load slider has no effect here; body mass comes from your limits.

Shoulder, per side
11 / 11

N·m now / peak over the rep.

Faults

Faults grow with knee bend and apply to lifts standing on the floor. The fault check flags a knee caving more than 10° inside the line of the toes and a load split beyond 60/40. Knee cave shows best in the front camera.

Body

Femur changes keep standing height fixed by shortening or lengthening the torso. Longer femurs force more forward lean in any squat.

Muscles worked

Glutes
100 pts

Effort and your quota

3.5/10 effort3.5fatigue per set

Your quota per set: 18 reps at bodyweight, stopping 2 reps short of failure.

One hard set earns 100 legs points.

Prime movers

Gluteus medius and minimus, tensor fasciae latae.

What to look for

  • Top leg slightly behind the body line, toes forward.
  • Do not roll the hips back.
How the model works, and its limits

One 3D skeleton drives both views. Segment lengths and widths are Winter's anthropometric ratios of height; segment masses and centre-of-mass positions follow Dempster's data. For free-standing lifts the whole-body angle is found numerically so the combined centre of mass of lifter and load sits over the middle of the foot. Arms and legs use two-link inverse kinematics with a pole direction. Rep timing follows a minimum-jerk profile.

Balance is quasi-static, so ballistic lifts are shown slowed down. Cable pull and pad support forces are not modelled. The spine is one rigid segment and joints have no range-of-motion limits or muscle forces.