Strength Training Flashcards
Strength is the _____ output of a contracting muscle and is directly related to the amount of ____ a contracting muscle can produce.
FORCE
TENSION
Myofibrils are composed of _____ that are connected in a series.
SARCOMERES
____ and _____ make up sarcomeres.
ACTIN & MYOSIN
Slow Twitch fibers (Type I)
- Slow contraction speed
- Low force (tension) production
- Highly Resistant to Fatigue
Fast Twitch Fibers (Type 2a)
- Fast Contraction Speed
- Fatigue Resistant
- Characteristics can be influenced by the type of training
Fast Twitch Fibers (Type 2b)
- Fast contraction speed
- High Force Production
- Susceptible to quick fatigue
The percentage of fiber type in the body is determined by ____ and (can or cannot) be changed via normal exercise.
Specific training can modify metabolic characteristics
GENETICS
CANNOT
Recruitment order depends upon (4 things)
- type of activity
- force require
- movement pattern
- position of body
Which fiber type has the lowest threshold and are recruited in lighter, slower efforts.Low intensity, long duration.
Slow Twitch
Fast twitch are activated with high force, high velocity movements
What is the order ?of recruitment
Slow twitch-> fast twitch IIa-> fast twitch IIb
When is maximum tension generated in the muscle?
MIDPOINT of ROM
What term describes the ability of the muscle to be stretched and return to its resting length called?
Elasticity
Once the muscle is released from a stretch, the muscle will ____ and produce as a force as it returns to its resting length.
contract
_____ is an increase in muscle size as a result of resistance training and can be observed in ____ weeks of training.
Hypertrophy
6-8 weeks
What is remodeling?
Increase in muscle fibers, sarcomeres increase, larger myofibrils.