Pull and extendCentre of mass inside base of support
Side view
Drag to orbit, pinch or scroll to zoom

Clean pull

The clean without the catch: 90 kg pulled from the floor like a clean deadlift, then a violent extension onto the toes with straight arms and the bar riding up the thighs. Builds the pull with more weight than you can clean.

11°Ankle dorsiflexion
75°Knee flexion
130°Hip flexion
68°Trunk from vertical
65°Arm to trunk
0°Elbow flexion
30Ankle spacing, cm
56Hand spacing, cm
2Knee outside ankle, cm
0°Knee cave, ° inside toe line
50 / 50Load left / right, %
0Pelvis drop, cm

Load and joint demand

Load in the model: 90 kg. Balance and joint demand re-solve as you change it.

Lower back
473 / 473
Hip extensors
282 / 282
Knee flexors
6 / 57
Calves
61 / 61
Shoulder, per side
44 / 44
Elbow, per side
22 / 43

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
Hamstrings
82 pts
Quads
64 pts
Upper back
46 pts
Calves and shins
35 pts
Lower back
35 pts

Effort and your quota

10/10 effort10.4fatigue per set

Your quota per set: 10 reps at 90 kg, stopping 2 reps short of failure.

One hard set earns 271 legs points, 46 pull points, 35 core points.

Prime movers

Gluteus maximus, hamstrings, quadriceps, trapezius, calves, spinal erectors.

What to look for

  • Same start as your clean; shoulders over the bar.
  • Finish tall on the toes, arms long, shoulders up.
  • Don't bend the arms early.
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.