Biomechanics Flashcards
What are the two definitions for CoM?
‘the point at which the body is balanced in all directions’
‘the point at which gravity appears to act’
Standing upright in the anatomicalpostion the centre of mass is around the …
belly button
Which gender generally has a higher CoM?
Males
What are the two reasons males generally have a higher CoM than females?
- The main body mass of males is in the shoulders whereas the main body mass of females is in the hips
- Males are generally taller than females
What is Newton’s first law of motion?
A body will remain at rest or uniform velocity until acted upon by an external force
What is Newton’s second law of motion?
The acceleration of a body is proportional to the magnitude of the force and takes place in the direction in which the force is applied
What is Newton’s third law of motion?
For every action there is an equal and opposite reaction
What is the definition of a force?
A push or pull that alters, or tends to alter, the state of motion of the body
What is the definition of inertia?
The resistance of a body to change its state of motion
What is velocity?
The rate of motion in a particular direction
Define stability
A measure of how easily a body is moved from a position of equilibrium or balance
Line of gravity definition
Imaginary line extending vertically downward to the ground from the CoM
Base of support is
The area enclosed by the points of contact with the ground
When is the body most stable
Low centre of mass
Line of gravity in the middle of the base of support
Large base of support
Large mass
