Second 1/2 Flashcards

0
Q

What are considered structural exercises?

A

Emphasize loading the spine directly or indirectly.

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1
Q

What are consider assistance exercises?

A

Assistance: recruit smaller muscles, uses one primary joint.

i.e. Abs, upper arm, neck, forearm

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2
Q

What is the recommended Order of resistance?

A

Power, core, assistance

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3
Q

Why would you ever reverse the order of resistance exercises?

A

Reversed: assistance. Core power

Power is the most fatiguing type of exercise and it can be dangerous if you do it at the end,

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4
Q

Which contraction type is the weakest?

A

Concentric contraction.

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5
Q

What is the most powerful contraction?

A

Eccentric contraction produces the most force.

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6
Q

How does velocity affect these contractions?

A

As force increases, velocity decreases.

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7
Q

Know the role of the muscle spindle, how do they function.

A

When muscle spindles are stimulated, the stretch reflex is stimulated, sending input to the spinal cord via, type Ia nerve fibers.

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8
Q

What two mechanical factors increase force for plyometric contraction?

A
  1. Stretch shortening cycle

2 stretch-reflex

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9
Q

What are the neurological factors that lead to an increase in force with resistance training and what is the role or the Golgi tendon organ?

A

Central adaptations: use the pathways, the better they are, adaptations of motor units. Increase frequency though training.

The Golgi tendon organ is less active, meaning less inhibition.

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10
Q

What is synchronization?

A

Motor units firing together

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11
Q

What is disinhibition?

A

Overriding inhibitory signals, more protection.

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12
Q

What is co-activation?

A

Muscles working together.

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13
Q

What is the time course for neurological and hypertrophic adaptations in strength with resistance training?

A

Neurological happen very fast, where hypertrophy occurs slower.

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14
Q

What is hypertrophy?

A

An acute response to exercise, muscle enlargement.

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15
Q

What is hyperplasia?

A

Results from an increase in the number of muscle fibers via. Longitudinal fiber splitting.

16
Q

What is validity?

A

The degree to which a test or test item measures what is supposed to be measured and is most important characteristic of testing.

17
Q

What is reliability?

A

Measure of a degree of consistency or repeatability of a test.

18
Q

What are the different factors that may affect test reliability?

A
  1. Intrasubject variability
  2. Lack of interrupter reliability or agreement.
  3. Intra rater variability
  4. Failure of the test itself to provide consistent results.
19
Q

What is the sequence of test types during a testing battery?

A
  1. Non-fatiguing
  2. Agility
  3. Max power & strength
  4. Sprint tests
  5. Local muscular endurance
  6. Fatiguing anaerobic capacity
  7. Aerobic capacity tests
20
Q

What is the difference between parallel or series sarcomeres?

A

Series: less force, greater velocity. Longer fibers

Parallel: greater force production, less velocity- body builders,

21
Q

How does pennation affect force and velocity?

A

Larger pennation angle = greater loss in force.

Pennation angle allows more muscle fibers to be packed into a muscle.