LEVER SYSTEM PART 1 (basic concepts of biomechanics) Physiotherapy class скачать в хорошем качестве

LEVER SYSTEM PART 1 (basic concepts of biomechanics) Physiotherapy class

Lever System (basic concepts of biomechanics) Physiotherapy class linked in :   / adhip-nadkarni-5b45241a6   twitter :   / adhip_nadkarni   summary of the video with the time for reference: 1.Torque and Lever system -Lever-rigid body -Fulcrum-fixed point Torque = Force x MA -Moment arm is always parpandicular distance from line of force to fulcrum 2.Lever System -FREE First class fulcrum is in the center -Second class -Resistance arm is in the center Third class Effort arm is in the center -Effort arm always wins and resistance arm always looses 3.First class lever system -like a see saw -Resistance arm can be greater than, equal to, or less than effort arm -flexion extension of head at occiput -Abduction and adduction at shoulder joint 3.Second class lever system -Effort arm greater than the resistance arm -Ankle planter flexion -Elbow flexion with brachioradialis action 3.Third class lever system -Effort arm less than the resistance arm -Knee extension with quadriceps -Elbow flexion with biceps action #centreofmass #centreofgravity