Therapeutic Exercise Flashcards
1
Q
What happens to actin-myosin when a muscle contracts
A
They slide together and the muscle shortens
2
Q
Slow twitch fibers (type 1):
Contraction speed
Resistant to fatigue?
Force production
A
Slow speed
Low force production
Highly resistant to fatigue
3
Q
Muscles are composed of fibers which are made of….
A
Myofibrils
4
Q
Fast twitch type 2a:
Contraction speed
Resistant to fatigue?
A
Fast speed
Fatigue resistant
5
Q
What makes up a sarcomere
A
Overlapping bridges of actin and myosin
6
Q
Myofibrils are composed of…
A
Sarcomeres
7
Q
Three types of muscle fibers
A
Slow Twitch (1)
Fast Twitch (2a)
Fast twitch (2b)
8
Q
Fast twitch type 2b:
Contraction speed
Force production
Fatigue resistance?
A
Fast speed
High force production
Susceptible to quick fatigue
9
Q
Length of time required for muscular hypertrophy
A
6-8 weeks
