Musculature Flashcards
1
Q
Motor unit
A
Motor neuron & connected muscle fiber
2
Q
Size principle
A
Muscle fibers are recruited based on size & force capability
I > IIA > IIX
3
Q
Type IIX
A
Fast twitch, glycolytic
Highest power output
Lowest fatigue resistance
4
Q
Type IIA
A
Fast twitch, oxidative-Glycolytic
Intermediate power output
Moderate resistance to fatigue
5
Q
Type I
A
Slow twitch, oxidative
Lowest power output
Highest resistance to fatigue
6
Q
Isokinetic
A
Constant speed of movement
Rehab equipment
7
Q
Isometric
A
No joint angle change
Common in stabilizers
8
Q
Eccentric
A
Deceleration
Muscle lengthens
9
Q
Concentric
A
Acceleration phase
Muscle shortens
10
Q
Isotonic
A
Constant tension while angle of joint changes
Acceleration/deceleration movements
11
Q
Antagonist
A
Relaxing muscle
12
Q
Agonist
A
Contracting muscle
13
Q
Types of muscle
A
Skeletal
Cardiac
Smooth
