Lecture 9 Flashcards
1
Q
muscular fitness contributes to :
A
- ↑ fat-free mass and ↑ resting metabolic rate
- ↑ in cardiovascular fitness (small increases)
- ↑ ability in tasks of daily living
- Maintaining bone mass
2
Q
Factors contributing to musclar fitness
A
Muscle size
Neural control
Fatigue resistance
ROM
3
Q
Explain muscle size
A
• Increased muscle cross-sectional area relates to strength in those muscles
4
Q
Explain neural control
A
- Learning effects for movements
- Synchronization of motor units
- Coordinating synergists and antagonists
5
Q
Explain fatigue resistance
A
- Size and density of mitochondria
- Amount of oxidative enzymes
- Increased capillary density
- Improved buffering capacity
6
Q
Explain ROM
A
Increased resting length (muscles and tendons)
• Achieve correct positions during exercise
• Improved efficiency of movement
7
Q
What are the different muscle actions/contractions
A
Concentric
Eccentric
Isometric
Isokinetic
8
Q
Explain concentric
A
muscle shortens during contraction
9
Q
Explain eccentric
A
muscle lengthens during contraction
10
Q
Explain isometric
A
muscle remains at same length
11
Q
Explain isokinetic
A
resistance varies with consistent speed
of contractions
12
Q
Health benefits of muscualr fitness
A
Weight management Increased strength and power Pain management Physiological benefits Injury prevention
