Press, concentric
Side view
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Half-kneeling landmine press

Kneeling on the right knee with the left foot forward, pressing the end of a landmine with the right hand. The kneeling stance takes the legs out of it.

-48°Ankle dorsiflexion
94°Knee flexion
4°Hip flexion
4°Trunk from vertical
34°Arm to trunk
150°Elbow flexion
26Ankle spacing, cm
55Hand spacing, cm
0Knee outside ankle, cm
–Knee cave, ° inside toe line
–Load left / right, %
0Pelvis drop, cm

Load and joint demand

Machine or cable load (15 kg at this setting) is not modelled, so joint demand shows the body only.

No gravity-based joint demand to show for this exercise.

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

Shoulders
100 pts
Chest
82 pts
Triceps
46 pts
Abs and core
35 pts

Effort and your quota

4/10 effort4.2fatigue per set

Your quota per set: 10 reps at 15 kg, stopping 2 reps short of failure.

One hard set earns 228 push points, 46 arms points, 35 core points.

Prime movers

Anterior deltoid, clavicular pectoralis, serratus anterior, triceps, obliques.

What to look for

  • Glute of the down knee stays squeezed.
  • Press up and slightly across the body.
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.