Muscle 2 (Muscle Force Production Influencers) Flashcards
1
Q
Joint Angle
A
Optimal length- cross-bridge formation
2
Q
Muscle cross-sectional area
A
generally strength is determined by lean body mass volume
3
Q
Speed of movement
A
- maximal strength
- power
- muscular endurance
- muscle mechanics
ex) golffffffffff
4
Q
Power
A
Ability to overcome external resistance by developing a high rate of muscle contraction
ex)hockey
5
Q
Muscular endurance
A
ability to risk fatigue in strength performance for a long duration
6
Q
Muscle Fiber Types
A
FT content within a muscle: has a high force out, spend of contration and low endurance
ST content within a muscle: low force output , speed of contraction and high endurance
7
Q
Age
A
FT number drops
8
Q
Sacropenia
A
- muscle tissue loss
- 30%muscle loss at ages 30-70
- lose strength and balance and more falls and fractures
9
Q
Sex
A
- men and woman are more similar than we think
- average woman =70% of male strength (at equal body mass)
10
Q
Total body mass
A
woman
11
Q
Lean Body mass
A
woman=men
- same strength produced by a single muscle fiber
- men and woman are the same
12
Q
Testerone
A
- responsible for muscle growth
- woman 20-30%
