Test On Chapter 4 (includes Quiz 3) Flashcards
The amount of force a muscle can produce with a single maximum effort
Muscular strength
The ability of a muscle or a group of muscles to remain contracted or to contract repeatedly
Muscular endurance
Order muscle parts from biggest to smallest
Muscles, fascicles, muscle fiber, myofibril
Myofibrils are…
Protein strands
Strength training increases the size of muscle fibers by increasing the number of myofibrils
Hypertrophy
Inactivity results in the loss of myofibrils (they dissolve)
Atrophy
What are the 3 attributes of slow twitch muscles?
- Fatigue resistant
- Not as powerful, rapid, or forceful as fast twitch
- Relies on oxidative energy system
What are the 3 attributes of fast twitch muscles?
- Contract rapidly
- Fatigue quickly
- Relies on nonoxidative energy system
By the age of 75, how many men and women can’t lift ten pounds?
30% men
75% women
How is muscular strength assessed?
Determining one repetition max
1RM
This is assessed by counting the maximum # of repetitions of a particular muscle contraction (continuously)
Muscular endurance
What are the two types of strength training exercises?
Static and dynamic
A muscle contraction without a change in the length of the muscle
Static exercise
A muscle contraction with a change in the length of the muscle
Dynamic exercise
What are the two types of dynamic exercises
Concentric and eccentric