Take care: Needs a stable shoulder with the arm overhead; start with no weight.
A 12 kg bell locked out overhead in the right hand, feet turned out to the left. The hips push back to the right as the trunk hinges and turns down toward the left foot, the left hand sliding down the inside of the left leg; the bell arm stays vertical, eyes on the bell.
Load in the model: 12 kg. Balance and joint demand re-solve as you change it.
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.
Femur changes keep standing height fixed by shortening or lengthening the torso. Longer femurs force more forward lean in any squat.
Your quota per set: 10 reps at 12 kg, stopping 2 reps short of failure.
One hard set earns 156 legs points, 23 push points, 35 pull points, 100 core points.
Obliques, gluteus medius, hamstrings, deltoids (holding), rotator cuff, adductors (stretched).
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.