Interactive kinetic chain: four lever segments fire in sequence from large proximal to small distal, with the tip speed of each segment shown
Your biggest muscles move first
A throw or a kick is a train of levers. The heavy, slow hips start the chain, and each lighter segment inherits that speed before adding its own rotation, so the end of the chain moves fastest of all. Fire the segments in order and watch the tip speed climb with every link.
Kinetic chain0 of 4 fired
Fire the segments one at a time, in order. Watch which link rotates fastest and which tip ends fastest.
At rest · fire the hips to start
Segments fired0 of 4
RestHipsTorsoArmHand
Each lever: rotation ω, lever arm r. Tip speed v = previous tip speed + ω × r