Push-up

Closed-chain upper-limb kinematics and trunk rigidity as a moving plank.

Run in Capture Lab

Setup

Side view; head-to-heel line visible
Hands under the shoulder; full lockout at the top
Chest to a defined depth (fist or block)

Scoring rubric

Trunk remains a single segment
Elbow flexion ~80–90° at the bottom
No lumbar sag or pike

Literature

Suprak et al. 2011 — push-up progressions and load as % body weight.

Tracked joints: elbow, shoulder, trunk. The kinematic engine is a teaching model scaled to the active subject. Export CSV from the report for your own processing.