CH 4: Important concepts Flashcards
What may muscular imbalances resulting from shortened muscles lead to?
Faulty postural alignment, injury, joint dysfunction
What time of properties do viscoelastic materials have in contrast to pure elastic materials?
Time-dependent
What produces greater amounts of strain or elongation?
Slower rates of stress (Stretch)
What produces smaller amounts of elongation?
Faster rates of stretch (stress)
How should one stretch out a connective tissue structure?
Heat it and use a large load over a long period of time to produce creep
How do lower temperatures affect the rate of creep?
Decreases; reasoning behind initial warm-up prior to stretching
What is specific to particular joints, joint actions, or movements and is highly variable among different individuals?
Flexibility
What relates to a tissue’s ability to resist stretch and indicates the amount of deformation proportional to the load applied?
Stiffness
What does less stiffness mean?
Greater compliance
What occurs when the tissue is stiff?
The less compliance it has and less likely to stretch
What means an accommodation to the discomfort of stretching over time?
Stretch tolerance
What is the aim of stretching?
To inhibit reflex activity, subsequently decreasing the resistance and improving ROM
Decreased muscle stiffness mainly results from what?
Increased muscle temperature and not stretching
What type of stretch is considered undesirable because they stimulate the muscle spindles during the stretch?
Ballistic
What type of stretch results in a continuous resistance to further stretch, which causes a high rate of tension strong enough potentially to injure the musculotendinous unit?
Ballistic
