Chapter 4 Flashcards
What is flexibility?
The capability of a joint to move freely in every direction or, specifically through a full or normal range of motion.
What does the term range of motion mean?
(ROM) - the possible movement about a joint in a static (held) or dynamic (moving) state within the anatomical limits of the joint structure.
What are the six factors that can influence or limit your joint mobility?
genetics, age, hyperkinesis, gender, body type, body temperature.
What is the purpose for stretching?
To restore muscles that are shortened, tight or weak to their optimum length, and prevent injury.
What are the three benefits of a good warm-up?
increases body and tissue temperatures, increases physical work capacity, increases the metabolism 10% - 13%, increases blood flow through active muscles, increase in the speed at which nerve impulses travel, facilitating body movements.
What is a static stretch?
Holding the body part in a stationary position in order to stabilize the muscles and its connective tissues safely at their greatest length.
What does the abbreviation PNF stand for?
Proprioceptive neuromuscular facilitation (assisted stretching, then rest, then stretch further than ROM after)
What are four benefits of stretching?
improves muscular balance and body alignment awareness, reduces lower back pain, increases neuromuscular coordination, increases maintenance or ROM, due to an increase in the quantity and decrease in the viscosity (thickness) of synovial fluid, enhancing a better nutrient exchange.
What problems can excessive stretching lead to?
Joint instability from over-stretched ligaments.
What are three specific reasons you would not stretch a muscle?
When a bone has recently been fractured, when you suffer from certain vascular diseases, when a muscle of joint is inflamed.
