ES 3550 Lecture Notes - Lecture 1: Mechanotransduction, Fluid Dynamics, Rigid Body
Biomechanics- the application of principles of mechanics to living things. Kinematics- study of motion that occur as a result of that force. Mass- quantity of matter contained within an object. Mechanotransduction- weight tissue adaptation (exercise mechanical force to the tissue) Center of mass- ours is in our torso. Center of mass can be outside the object (doughnut) Can change our center of mass (lower- squat) 1st- object in motion stays in motion; object at rest stays at rest unless acted upon. 3rd- for every action there"s an equal but opposite reaction. Muscle mass adds force (fat mass impedes performance) Compression- forces acting on both sides (squatting with bar) Bending- combination of compression and tension (pole vault) Torque- effect of force around axis of rotation (joint) Friction- object against intended direction of motion (skiing) Bone graph is much steeper than muscle graph. 1st grade- strain 2nd grade- partial tear 3rd- complete tear.