CH 9 - Principle of Exercise Training Flashcards

1
Q

muscular strength

A

strength: maximal force that a muscle or muscle group can generate

  • > static strength
  • > dynamic strength (varies by speed and joint angle

1 repetition maximum (1RM): maximal weight that can be lifted with a single effort

  • > start with proper warm up
  • > add weight until only 1 repetition can be performed
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2
Q

muscle power

A

rate of performing work

  • > explosive aspect of strength
  • > power = work x (distance/time)
  • > power more important than strength for many activities
  • > field tests are not very specific
  • > typically measures with electronic devices
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3
Q

muscle endurance

A

endurance: capacity to perform repeated muscle contractions (or sustain a single contraction over time)
- > number of reps at given % of 1RM

increases through…

  • > gains in muscle strength
  • > changes in total metabolic and cardiovascular function
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4
Q

aerobic power

A

rate of energy release by oxygen-dependant metabolic processes

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5
Q

maximal aerobic power

A

maximal capacity of aerobic re-synthesis of ATP

synonymsL aerobic capacity, maximal O2 intake, VO2 max

primary limitation: cardiovascular system

  • > can be tested in a lab or estimated from wide variety of field tests
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6
Q

anaerobic power

A

rate of energy release by oxygen independent metabolic processes

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7
Q

maximal anaerobic capacity

A

maximal capacity of anaerobic systems to produce ATP

also known as:

  • > anaerobic capacity
  • > maximal accumulated O2 deficit
  • > critical power test
  • > wingate anaerobic test
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8
Q

what are the 5 general principles of training

A
  • > principle individuality
  • > principle of specificity
  • > principle of reversibility
  • > principle of progressive overload
  • > principle of variation
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9
Q

principle individual

A
  • > not all athletes are created equal
  • > genetic affect performance
  • > variations in cell growth rates, metabolism, and cardiorespiratory and endocrine regulation
  • > explains high vs low responders to exercise
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10
Q

principle of specificity

A
  • > exercise adaptations specific to mode and intensity of training
  • > training program must stress most relevant physiological systems for given sport
  • > training adaptations highly specific to type of activity, training volume, and intensity
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11
Q

principle of reversibility

A
  • > use it or lose it

training - > improved strength and endurance

  • > detraining reverses gains
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12
Q

principle of progressive overload

A

must increase demands on body to make further improvements

muscle overload: muscles must be loaded beyond normal loading for improvement

progressive training: strength increases, resistance/reps must increase to further increase strength

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13
Q

principle of variation

A

also called principle of periodization

systematically changes one or more variable to keep training challenging

  • > intensity, volume and/or mode
  • > inc vol, decr. intensity
  • > dec vol, inc. intensity
  • > macrocycle vs mesocycles (period/ timing of training)
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14
Q

requirements of resistance training programs

A

should involve concentric (CON), eccentric (ECC) and isometric contractions (ISO)

  • > CON strength maximized by ECC
  • > ECC benefits action specific movements

exercise order

  • > larger muscle groups before small muscle groups, multi-joint before single joint, high intensity before low intensity

rest periods base on exercise

  • > novice/intermediate lifters: 2 to 3 minutes between sets
    advanced: 1 to 2 mins
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15
Q

types of resistance training programs

A
  • > static-contraction resistance (isometric training)
  • > free weights vs machines
  • > dynamic eccentric training
  • > variable-resistance training
  • > isokinetic training
  • > plyometrics
  • > electrical stimulation
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16
Q

static-contraction resistance

A

type of resistance training, also known as isometric training

  • > muscle force without muscle shortentin
  • > early evidence showed great promise, later evidence did not support early findings (that iso training produced more gains than dynamic training) but still popular and produces benefits
  • > ideal for immobilized rehab situations
17
Q

free weight vs machines

A

free weights (constant resistance)

  • > tax muscle extremes but not midranges
  • > recruit supporting and stabilizing muscles
  • > better for advanced weight lifters

Machines

  • > may involve variable resistance
  • > safer, easier, more stable, better for novices
  • > limit recruitment to targeted muscle groups
18
Q

dynamic eccentric training

A

emphasized ECC phase of contraction

  • > in this phase, muscles ability of resist force greater than with CON training, theoretically produces increase strength gains vs CON
  • > early ECC vs CON research is equivocal, more support in recent studies

*ECC + CON workouts maximize strength gains

*ECC important for muscle hypertrophy

19
Q

variable resistance training

A
  • > resistance decrease in weakest range of motion, increase in strength phase
  • > muscle works agains high percentage of its capacity at each point in ROM
  • > basis for several popular machines
20
Q

isokinetic training

A

movement at a constant speed, doesn’t matter if they use little or all their possible force; uses hydraulics, air and electronics to do this

*ang vel can range from 0-300 deg/sec

*strong force opposed by more resistance

  • > theoretically aloows maximal contraction at all points in ROM

-

21
Q

plyometrics

A

also known as stretch-shortening cycling exercise

  • > uses stretch reflex to recruit motor units
  • > stores energy during ECC and releases it during CON; i.e. deep squat to jump
  • > proposed to bridge gap between speed and strength training
22
Q

electrical stimulation

A

pass current across muscle or motor nerve

  • > ideal for recovery from injury or surgery
  • > reduces strength loss during immobilizations
  • > restores strength and size during rehab
  • > no evidence of further supplemental gains in healthy, training athletes