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36 Cards in this Set
- Front
- Back
Anaerobic training |
High intensity intermittent bouts of exercise |
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muscle adaptations occur first in |
The brain, neurally |
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Size principle |
The CNS adapts by recruiting in non consecutive order of size of muscle fibers |
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Type 1 muscle fiber |
Fast twitch |
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Type 2 muscle fiber |
Slow twitch |
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Cross education |
Training 1 limb will result in increased strength in opposite limb up to 22% |
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Bilateral deficit |
Greater force produced when 1 limb contracts independently than when both contract together |
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Muscle hypertrophy |
Muscle enlargement from increase in size of the cross sectional area of existing fibers |
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Evidence of hypertrophy appears in how many workouts |
16+ |
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When are initial gains the greatest in a workout program? |
1st 3 months. Rate of gains decrease over time. |
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Repetition volume |
# reps in a workout |
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Load volume |
# sets x # reps x weight lifted, added together |
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Acid-base balance of skeletal muscle |
Decreases pH level Increases lactic acid tolerance Delays fatigue Increases muscle endurance |
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Muscle fiber size changes |
Type 2 have greater increase in size with anaerobic training Ex. Leg physique of endurance athlete vs sprinter |
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Sprint training increases what |
Calcium release. Important for muscle contraction |
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Bone modeling |
Longitudinal weight bearing force causes bone to bend. Wakes up dormant osteoblasts. Osteoblasts lay down new collagen fibers |
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Minimal essential strain (MES) |
Threshold stimulus that initiates new bone formation |
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MES is what percent of force required to fracture one |
1/10 |
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Changing angles for resistance training |
Creates new target area for bone growth |
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Neuromuscular junction |
Increased surface area results in larger branching of nerves, enhancing training |
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Bone physiology |
Trabecular (spongy) bone responds more rapidly to stimulus than (cortical) compact bone |
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Acute anaerobic exercise results in |
Cardiac output Stroke volume Heart rate Oxygen uptake Systolic BP Blood flow to active muscles |
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Cardiac output |
Amount blood pumped per minute (stroke volume x HR) |
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Stroke volume |
Amount of blood pumped per beat (cardiac output/HR) |
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Reactive hyperemia |
Decreased blood flow to muscles during concentric (flex) phases (kink in water hose) Increases blood throw in eccentric phase (whoosh) |
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Overtraining |
Excessive frequency, volume, or intensity of training |
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Psychological effects of overtraining |
Decreased desire to train Decreased joy from training |
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Sympathetic overtraining |
Increased resting HR- bad |
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Parasympathetic overtraining |
Fatigue, apathy, loss of sleep, and irritability |
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Hormonal markers in overtraining |
Decreased glutamine Decreased resting levels of testosterone Decreased lutenizing hormone Increased cortisol |
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Detraining |
Decreased performance and loss of accumulated physiological adaptations following cessation of anaerobic training |
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Detraining occurs |
2 weeks or sooner depending on athletes level of training |
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Pretraining levels with detraining |
Strength rarely goes below pretraining levels |
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Overreaching |
Excessive training on short term basis |
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Why is overreaching used? |
Used to condition athlete Acclimation |
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When is overreaching used? |
Preseason 2 a days |