Chapters 4-8 Flashcards
T/F improper conditioning is a primary contributing factor for sports injuries
True
What are some principles that should be applied to conditioning programs to reduce risk of injury? (10)
Safety, warmup/cooldown, motivation, overload, consistency, progression, intensity, specificity, individuality, minimal stress
(Page 89-90)
What does SAID stand for?
Specific adaptations to imposed demands
What does the SAID principle state?
When the body is subjected to stresses and overloads of varying intensities, it will gradually adapt over time to overcome whatever demands are placed on it
What is cardiorespiratory endurance?
The ability to perform whole-body large-muscle activities for extended periods of time
What 4 components transport oxygen?
Heart, lungs, blood vessels, and blood
What is meant by “Training effect” with regards to cardiac output of the heart?
Strike volume increases while heart rate is reduced at a given exercise load
(Page 93)
What is the ratio of carbohydrate/fat consumption at rest and submaximal activity?
40:60
What are 3 different types of cardiovascular training?
Continuous training, interval training, and speed play (fartlek)
(Page 95-97
What is speed play?
When the terrain they are running on differs (goes from uphill to flat to downhill etc) and they run for a specified time, but speed and pace are not specified.
T/F The strength of noncontractile structure, tendons/ligaments, decreases with resistance training
False
T/F Adaptations from resistance training begin to reverse (atrophy) is as little as 48 hours
True
T/F For a muscle to improve in strength must be forced to work at a higher level than it is accustomed to work
True
What muscles make up the core?
Lumbar spine, abdomen, hips, and pelvis
What is progressive resistance exercise (PRE)?
Technique that strengthens muscles through a contraction that overcomes some fixed resistance produced by equipment. (Normal lifting)
Page 104
Which contraction requires less oxygen usage?
Eccentric.
Lower motor unit activity–> lower oxygen utilization–> more resistant to fatigue
(Page 105)
What are the 3 jobs of a spotter?
Protect lifter from injury, make recommendations on proper lifting form, and help motivate the lifter
What is accommodating resistance?
Change in resistance at different points in the range
Ex Cam system
What are common things targeted in circuit training? (4)
Weight training, flexibility, calisthenics, and aerobic exercise
Typically 10-12 stations, repeated 3 times
(Page 109)
What is flexibility?
The ability to move a joint or series of joints smoothly and easily through a full range of motion
What are some things that may limit flexibility? (6)
Bony structure, excessive fat, skin (scar tissue), muscles/tendons, connective tissue, neural tissue tightness
Page 112
What is an agonist muscle?
Muscle contracting to cause movement
What does an antagonist muscle do?
Muscle being stretched
T/F Passive range of motion is important for injury prevention
True
What do Golgi tendon organs respond to?
Change in length and the increase in tension by firing off sensory impulses of their own to the spinal cord
What does the impulses from the GTO do?
Causes a relaxation of the antagonist.
Allows muscle to stretch through relaxation w/o exceeding the estensibility limits
Page 114
What does a muscle spindle do?
Informs CNS that a muscle is being stretched.
Causes the muscle to reflexively contract, resisting the stretch
Page 114
What is autogenic inhibition?
Relaxation of the antagonist muscle during contractions
GTO
Page 114
What is reciprocal inhibition?
A contraction of the agonist causes a reflex relaxation in the antagonist muscle, allowing it to stretch and protecting it from injury
114
What are the 3 PNF techniques?
Slow reversal hold
Contract relax
Hold relax
Page 116
What is the definition of nutrition?
The science of the substances in food that are essential to life
What are the 3 major functions of nutrients?
The growth, repair, and maintenance of all tissues
Regulation do body processes
Production of energy
What are the 6 classes of nutrients?
Carbohydrates, fats/lipids, proteins, water, vitamins, and minerals
What is the recommended amount of fiber in the diet?
25 grams/day