Shared Flashcard Set

Details

Exercise Physiology Exam 2
Principles of Aerobic Exercise Training
44
Other
Not Applicable
02/12/2005

Additional Other Flashcards

 


 

Cards

Term
VO2 is highly dependent on specificity. What does this mean?
Definition
That if you run to train, then you test VO2 on a bike, you will likely find a lower VO2 than if you had tested on a treadmill.
Term
There are three major things that are affected by specificity. What are they?
Definition
Neuromuscular activation, metabolic pathways, training mode.
Term
How is neuromuscular activation affected by specificity?
Definition
The efficiency and economy with which you do an activity is increased if you practice by doing that activity, because you get better neuromuscular connections to the muscles used, through the pattern of activation, and with the velocity of movement.
Term
What impact does specificity have on metabolic pathways?
Definition
If you're going to run a marathon, you need to train your aerobic pathways. The more you train those pathways they better they serve you. You can't train for a 5k race by doing 100 yard sprints, because the two activities depend on different metabolic pathways.
Term
Do you need to train with the same activity you want to perform in to get desired matabolic pathway effects?
Definition
You can train with two different activities, as long as you train with similar times and intensities, and train the same metabolic pathways. ie: long distance running and biking both train the aerobic pathway.
Term
Define Cross training.
Definition
The transfer of benefits gained via one mode of training, to another mode of training.
Term
If it is proven that specific practice is the best way to train for a specific event, why might an athlete choose to cross-train instead? (5)
Definition
To add variety and decrease boredom, to decrease risk of injury, or in case of injury, to maintain or further improve fitness, to add volume to exercise program.
Term
Does cross training yield better results in trained or untrained populations?
Definition
Untrained.
Term
Describe the priciple of overload.
Definition
The body does not improve unless it experiences more stress than it is accustomed to.
Term
At what percentage of VO2 max should one work to get an adequate training response (overload principle)
Definition
60%
Term
What is overtraining?
Definition
An imbalance between training and recovery. (Train more than recovering.)
Term
What factors make one more susceptible to overtraining effects? (7)
Definition
A-type personality, being female, increased age, decreased nutrition, increased travel, season (winter), decreased sleep, intake of alcohol or other drugs.
Term
What are some symptoms of overtraining? (9)
Definition
emotional outbursts, anger, depression, insomnia, long term muscle soreness, fatigue, decreased performance, decreased enthusiasm, loss of edge.
Term
why is it so difficult to study overtraining?
Definition
Because symptoms are vague and everyone responds differently.
Term
How do you know when to progress a program?
Definition
when adaptation occurs.
Term
When does adaptation occur? (progressin principle)
Definition
adaptation occurs in the recovery period.
Term
Progression is specific to what two things?
Definition
time and system
Term
In what systems do adaptations occur?(4)
Definition
Cardiovascular, muscular, neuromuscular and pulmonary.
Term
Compare rates of adaption of cardiovascular system and muscular system.
Definition
Cardiovascular adaptations occur quickly, whereas muscle adaptations occur over long periods of time. (6 weeks before true muscle hypertrophy.)
Term
What is tapering, and why is it used?
Definition
A decrease in training intensity and or volume close to an important event to improve performance.
Term
Would you expect to see a decrement in VO2max or lactate threshold as a result of tapering?
Definition
Nope!
Term
Why does tapering help improve performance?
Definition
Decreased incidence of muscle soreness, so they feel better. Allows for full replenishing of glycogen stores, allows for restored and optimized nutrition, and allows healing time for minor injuries.
Term
What does gail say is better when tapering; decrease volume, or intensity?
Definition
decrease volume.
Term
What is detraining?
Definition
loss of physiologic and performance adaptations due to lack of training.
Term
After 20 days of bed rest/immobilization, a group of subjects was shown to have decreased VO2max, SV and CO by what percentage?
Definition
all of these areas declined by 25% in 20 days.
Term
What are the first adaptations that are lost?
Definition
The first ones that were gained. Cardio and enzyme adaptations.
Term
Once an individual is detrained, can they 'bounce back' by retraining at a higher rate?
Definition
No. retraining effects take place at the same rate as initial exercise improvements.So you can't train any faster than you did to begin with.
Term
Describe the difference between continuous and interval training.
Definition
Continuous = long, slow, distance training. Interval = large amounts of high intensity work intervals followed by a rest or relief interval.
Term
How does interval training (theoretically) increase lactate threshold?
Definition
By improving lactate mobility. (training anaerobic and waste removal systems.)
Term
What is the typical ratio for work:relief for interval training?
Definition
1:3
Term
Describe the Fartlek routine
Definition
Varying speed and intensity in one continuous period. Designed for natural terraine - hills, etc.
Term
Does the Fartlek routine target more aerobic or anaerobic pathways?
Definition
aerobic.
Term
Describe the process of lactate stacking.
Definition
Perform up to one minute of high intensity activity, followed by 3-5 minutes of rest, and another minute of anaerobic activity. But that rest period is not long enough to allow full removal of lactate accumulation. as the process is repeated, more and more lactate accumulates.
Term
What is the major problem with lactate stacking training?
Definition
It is difficult and painful/uncomfortable. One needs to be very motivated to do it successfully.
Term
If you were to perform lactate stacking, at what point in a training session would you do it?
Definition
at the END. NEVER at the beginning.
Term
List the three major types of aerobic training protocols.
Definition
Continuous, interval, fartlek.
Term
What are the muscular/enzyme adaptations to aerobic training?
Definition
Increased oxidative enzymes, increased size and number of mitochondria, increase in capillary:fiber ratio.
Term
How are the muscular/enzymatic adaptations that occur in aerobic training beneficial?
Definition
They increase the transit time of RBC, so they move more slowly and facilitate more maximal gas exchange.
Term
Is muscle hypertrophy one of the major effects of aerobic training?
Definition
Not really. (look at runners, and bikers; they dont have very big quads) muscle bulk isn't necessarily to their benefit.
Term
What is the major pulmonary adaptation to aerobic training?
Definition
Work of the respiratory muscles is minimized, and gas exchange is optimized.
Term
How is gas exchange optimized in the pulmonary system w/ aerobic training?
Definition
minute volume increases because of increased tidal vol and respiratory rate.
Term
Does aerobic training have a significant effect on static or dynamic lung function?
Definition
No. the effects are through optimizing work of respiratory muscles and improving gas exchange through deeper and more rapid breaths. The lung itself doesn't change.
Term
What are the lung's adaptations at submaximal exercise? (4 major)
Definition
uncreased TV and decreased RR --> increased O2 extraction, decreased minute ventilation per unit of VO2 b/c resp muscles use less O2 (because of decr. RR), increased ventilation muscle endurance, and decreased dyspnea.
Term
We have learned the effects of aerobic training on the metabolic pathways, the muscles, heart and lungs. What other benefits are there to exercise outside of these areas?(5)
Definition
decreased body mass, increased fat-free mass, increased body heat transfer, increased endurance performance, psychological benefits.
Supporting users have an ad free experience!