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Biomechanics of Exer
ISSA Personal Training 9th Edition Unit 5
Acceleration | The rate of change of velocity per unit of time. |
Angle of Pull | The angle at which a muscle pulls relative to the long axis of the bone on which it pulls. |
Biomechanics | The study of movement |
Center of Gravity | the point in the body around which your weight is equally distributed. |
Direction | The way in which the force is applied. |
First-class lever | Fulcrum in the middle, the effort is applied on one side of the fulcrum and the resistance on another. |
Force | The interaction that create work, action, or physical change |
Fulcrum | The point in which a lever rests or is supported and on which it pivots. |
Gravity | the downward pulling force that creates resistance. |
Inertia | The tendency for an object to remain in its current state. |
Kinesthesis | The ability to perceive your position and movement of the body or body climbs in space. |
Lever | Rigid bar that turns about an axis of rotation or a fulcrum. |
Line of action | An imaginary straight line drawn from the point of application force through the direction of force. |
Line of gravity | A vertical line straight down from the center of gravity. |
Magnitude | How much force is applied to the dumbbells, barbells, or machines. |
Mass | A body of coherent matter |
Momentum | The quantity of motion of a moving body, measures as a product of its mass and velocity. |
Moving Inertia | An object that is in motion will stay in motion unless acted upon by some outside force. |
Point of. application | Where the force is applied on the body or implement being used. |
power | The work done in a unit of time |
Range of Motion | (ROM) The movement of a joint from full flexion to full extension. |
Resting Inertia | An object is at rest, it will stay at rest unless acted upon by some outside force. |
Second-class lever | A lever in which the load lies between the fulcrum and the effort. |
Stability | The ability to maintain a balanced state. |
Third-class lever | A lever in which the effort is placed between the fulcrum and the load. |
torque | the magnitude of twist around an axis of rotation. |
velocity | The speed of something in a given direction |
Visual reference point | A chosen point to focus to aid in stability and balance. |
Work | Force times distance. Measured in foot-pounds and simian units. |