Lecture 14 Flashcards

1
Q

Lecture 14:

What is Positive Stress?

A

Training that causes improvements in exercise performance
- dependent on colume & intensity of training
- compares quantity vs quality training
- major adaptations in 6-10weeks

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2
Q

Lecture 14:

How is rate of Adaptation limited?

A

Rate of adaptation is genetically limited & variation could be too much
- too much training = decreased performance & increased chance of injury

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3
Q

Lecture 14:

When discussing training, why is it important to balance volume & intensity?

A

Makes sure that rest is included & correct balance in training enhances performance

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4
Q

Lecture 14:

What are performance decrements of overtraining?

A

Overtraining causes performance decrements such as; chronic fatigue, illness, overuse injuries, & overtraining syndrome

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5
Q

Lecture 14:

Why is Progressive Overload Necessary for optimized training?

A

Progressively increases stimulus as the body adapts & stimulation of continuous improvements

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6
Q

Lecture 14:

What is Under training & how does it occur?

A

Undertrainign results from insufficient stimulus & adaptations aer not fully realized
- optimal performance is not achieved when under-trainign

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7
Q

Lecture 14:

What is Overtraining & how does it occur?

A

Overtrainign causes a loss of benefits from activity & no additional improvements are met
- leads to performance decrements & possibly injury

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8
Q

Lecture 14:

What is Overreaching?
- what does it allow?

A

Overreaching is the systematic attempt to overstress the body for short training periods
- allows the body to adapt to stronger stimulus
- not the same as excessive training & must take caution to not cross into overtraining
- overreaching causes a short performance decrement followed by improved performance & function

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9
Q

Lecture 14:

What is Excessive training? Provide an example & express some pros/cons

A

Excessive training occurs when volume, intensity, or both are too extreme
- “more training is better” isn’t always true after a point
- Eg; swim training 3-4h per day is no better than 1-1.5 hours per day

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10
Q

Lecture 14:

When discussing excessive training, is more always better?

A

No evidence explaining that more is better
- similar HR & blood lactate levels & no additional improvements from exercising multiple times per day

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11
Q

Lecture 14:

During excessive training, how are intensity & volume related?

A

Intensity & volume are inversely related; if volume increases than intensity should decrease & vice versa
- different emphasis leads tp different results & applies to resisdtence, aerobic, & anaerobic training
*if intensity & volume both increase, this may cause negative effects

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12
Q

Lecture 14:

What is Periodization of Training & what athletes is it best for? What athletes would it not work for?

A

Divides Trina in into cycles ranging from multi year to microcycles (few days)
- best from athletes who focus on one competition
- not optimal for team sports or sports requiring skill development
- includes general & specific exercises to stimulate motor skills

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13
Q

Lecture 14:

What is Block Periodization Training?

A

Allows do us on a few skills/attributes & uses 3-4 blocks that last 2-4 weeks
*gaining popularity

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14
Q

Lecture 14:

What is Overtraining & what does it lead to?

A

Leads to unexplained decreases in performance & function from weeks-months-years
- may have psychological & physiological causes
- can occur with all forms of training

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15
Q

Lecture 14:

What is Overtraining Syndrome & its 6 Symptoms?

A

Overtraining syndrome is highly individualized & rules out other causes; systems include…
1.) decreased strength, coordination, & capacity
2.) fatigue
3.) change in appetite & weight loss
4.) sleep & mood disturbances
5.) lack of motivation or concentration
6.) depression

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16
Q

Lecture 14:

What are some psychological factors of overtraining syndrome?

A

Overtraining is possibly related to intensity or volume (training errors)
- psychological factors may be emotional pressure of competition which causes stress & parallels with clinical depression

17
Q

Lecture 14:

What are some physiological factors of overtraining syndrome?

A

Autonomic, endocrine, & immune factors don’t have a cause-and-effect relationship but have significant parallels

18
Q

Lecture 14:

When discussing overtraining syndrome, what are some impacts it has on the Sympathetic Nervous System?

A

1.) increased BP
2.) loss of appetite
3.) weight loss
4.) sleep & emotional disturbances
5.) increased basal metabolic rate

19
Q

Lecture 14:

When discussing overtraining syndrome, what are some impacts it has on the Parasympathetic Nervous System?

A

1.) early fatigue
2.) decreased resting HR
3.) decreased resting BP
4.) rapid HR recovery
**more common with endurance athletes

20
Q

Lecture 14:

When discussing overtraining syndrome, what are some Endocrine responses?

A
  • resting thyroxine & testosterone levels decrease & cortisol increases
  • testosterone-to-cortisol ratio is an indicator of anabolic recovery process and when altered it could possibly indicate protein catabolism
  • volume-related overtraining more likely to affect hormones
  • blood urea concentration increases
  • resting catecholamines increase
21
Q

Lecture 14:

When discussing overtraining syndrome, what are some immune responses that occur?

A

Immune function may be compromised as overtraining suppresses immune function
- decrease in lymphocytes & antibodies
- increase incidence of illness after exhaustive exercise
- exercise during illness may cause immune implications

22
Q

Lecture 14:

How do you predict overtraining syndrome?

A

Causes and diagnostics are unknown & difficult to determine
- threshold is different for each athlete & intuition is unreliable
- no warning symptoms meaning coaches dont notice until too late (recovery takes days/weeks/months)
- biological markers (limited)

23
Q

Lecture 14:

What are some treatments for overtraining syndrome?

A
  • reduce the intensity
  • rest (for weeks-months)
  • counselling to deal with stress
24
Q

Lecture 14:

What are some preventions for overtraining syndrome?

A
  • Periodization of training
  • adequate caloric intake (especially carbs) when training
25
Lecture 14: What is tapering for peak performance & what does it involve?
Tapering involves reducing training volume or intensity typically before major competition (allows recovery & healing) - most important for frequent competitors & typically 4-28 days
26
Lecture 14: What does tapering result in?
Results in decreased muscular strength - possibly associated with contractile mechanisms - tapering lets muscles get repaired & glycogen reserves are replenished
27
Lecture 14: Does tapering result in reconditioning?
No, it does not result in deconditionaing as considerable training must be done to reach VO2max - possible to reduce training volume by 41-60% & still maintain VO2max
28
Lecture 14: What does Tapering lead to?
Tapering leads to improved, peak performance - 3% improved race times - 18-25% improved arm strength & power *effects unknown for team sports & marathons
29
Lecture 14: What is Detraining?
The loss of training-induced adaptations (can be partial or complete) & occurs due to stopped or reduced training - has a more substantial change than tapering
30
Lecture 14: What is the key difference between tapering & detraining?
Tapering is a brief period where training-induced adaptations are gone but detraining is a much longer period where these adaptations aree gone
31
Lecture 14: When discussing Detraining… what is immobilization & training cessation?
Immobilization leads to immediate loss of muscle, strength, & power Cessation is the variation in the rate of strength & power loss
32
Lecture 14: What are a few causes of detraining?
1.) atrophy - muscle immobilization 2.) reduced ability to recruit muscle fibres 3.) altered rates of protein synthesis vs degradation
33
Lecture 14: What is the key impact detraining has on someone?
Muscle endurance decreases rapidly - can see change after 2weeks of inactivity - nit clear whether results are from muscle or cardiovascular changes - oxidative enzyme also decreases by 40-60%
34
Lecture 14: What impact does detraining have on Cardiorespiratory system?
Significant losses in this system such as: - significant increase in submaximal HR - 25% decrease in submaximal SV (due to decrease plasma volume) - 25% decrease cardiac output & 27% decrease VO2max