Work, Energy, Power Flashcards
1
Q
Concentric Muscle Action
A
Shortening of the muscle when it contracts
2
Q
Conservation of Mechanical Energy
A
the total mechanical energy in a system (i.e., the sum of the potential plus kinetic energies) remains constant
3
Q
Eccentric muscle action
A
Lengthening of the muscle when it contracts
4
Q
Ergometry
A
a science that measures how much physical work is done by the body
5
Q
Isometric muscle action
A
No movement occurring when the muscle is contracted (maintaining a position)
6
Q
Negative vs. Positive work
A
the negative and positive signs indicate the direction that work is being done
