Stability (Principle 1) Flashcards
L12.1
What are static systems?
Statics is a branch of mechanics that deals with objects/bodies in a state of constant, consistent motion.
In statics, the rate of change of motion on an object/body is unchanging.
What are dynamic systems?
Dynamic systems is one that experiences a change in the rate at which it is moving as a result of forces applied to it.
The seven biomechanical principles involve the interactions of static and dynamic systems.
What’s the purpose of biomechanical principles?
Help Kinesiologists provide meaningful feedback to their students/athletes to help improve their movement pattern.
What are the 7 principles?
Stability
Production of Max. Force
Production of Max Velocity
Impulse-Momentum Relationship
Direction of application
Production of Angular Motion (Torque)
Conservation of Angular Momentum
How can these 7 be grouped?
Stability (Principle 1)
Max. Effort (Principles 2-3)
Linear Motion (Principles 4-5)
Angular Motion (Principles 6-7)
What’s Stability?
“The greater the mass, the lower the center of mass to the base of support, the larger the base of support, and the closer the center of mass
is positioned to the base of support, the more stability increases.”
Basically: “The more weight lowers the center of mass to the base. The larger the base and the closer the center of weight is to it, the more stability.”
What are key concepts to this?
Stability: The quality, state, or degree of being stable and capable of resisting a change in motion.
Balance: Even distribution of mass enabling someone/something to stay steady.
Mass: The weight/matter
Base of Support: The supporting area beneath object/body.