First-class lever—A lever for which the muscle force and resistive force act on opposite sides of the fulcrum #triceps
Second-class lever—A lever for which the muscle force and resistive force act on the same side of the fulcrum, with the muscle force acting through a moment arm longer than that through which the resistive force acts #calves
Third-class lever—A lever for which the muscle force and resistive force act on the same side of the fulcrum, with the muscle force acting through a moment arm shorter than that through which the resistive force acts #biceps
Sagittal plane -> BB Curl
Frontal plane -> DB lat raise
Transverse plane -> DB fly
Force = Mass ∙ Acceleration
Work = Force ∙ Displacement
Power = Work / Time
Work = Torque ∙ Angular displacement
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Chapter 2 :
Musculoskeletal System
First-class lever—A lever for which the muscle force and resistive force act on opposite sides of the fulcrum #triceps
Second-class lever—A lever for which the muscle force and resistive force act on the same side of the fulcrum, with the muscle force acting through a moment arm longer than that through which the resistive force acts #calves
Third-class lever—A lever for which the muscle force and resistive force act on the same side of the fulcrum, with the muscle force acting through a moment arm shorter than that through which the resistive force acts #biceps
