Training for Anaerobic and Aerobic Power Flashcards
Describe the different physical activities, and their duration, intensity and which energy transfer systems are activated
- ATP (last for 0-4s) for Strength and Power
- power lift, high jump, javelin throw, golf swing, tennis serve - ATP-PCR (immediate; lasts for 8 seconds ) -Sustained power
- sprints, fast breaks, football line play, gymnastics routine - ATP + PCR + Lactic Acid (last for up to 1 min) Anaerobic power-endurance
- 200-400 m dash, 100m swim - Electron Transport -Oxidative Phoshphorylation (up to 3 mins)
- Aerobic endurance (beyond 800 m run)
Explain the purpose of exercise training principle and how both men and women adapt to training
Exercise training - important for Stimulating structural and Functional adaptations to IMPROVE performance in specific physical tasks (ex: increase cross sectional area for power; or increase motor unit recruitment to fire faster
-The basic approach to physiologic conditioning applies SIMILARLY to men and women within a broad age range ; *Both respond and adapt to training in essentially the same way.
Describe the overload principle and also mention how to achieve health-related benefits of exercise
Overload principle:
Regular application of specific exercise Overload Enhances physiologic function to induce training response
you must overload the system to get response from system (muscle tears or fractures must occur to activate satellite cells and repair bone to make bones stronger and thicker)
-Exercising at Intensities Higher than normal stimulates highly specific adaptations, so the body functions more Efficiently
-Achieving health-related benefits of regular exercise requires LOWER exercise intensity and INCREASED DURATION the required to improve aerobic fitness.
Define the specificity principles. Also discuss what SAID is.
Specificity Principle
-Exercise training specificity refers to adaptations in metabolic and physiologic functions that depend upon the type and mode of Overload imposed
(whatever muscle you engage or overload, that will adapt)
-The most effective evaluation of sport-specific performance occurs when laboratory measurement most closely stimulates actual sport activity and/or uses the muscle mass and movement patterns required by the sport.
Specificity refers to Specific Adaptations to Imposed Demands (SAID)
What. must overload achieve when training for specific Aerobic activities? What creates the lowest vs greatest improvement?
When training for Specific Aerobic activities, the overload must:
- Engage the appropriate muscles required by the activity
- Provide exercise at a level sufficient to Stress the Cardiovascular System
LITTLE improvement occurs when measuring aerobic capacity with DISSIMILAR Exercise
The GREATEST improvement occurs when Test exercise duplicates the Training exercise (in order to become better sprint swimmer, you need to be able to
What happens when you overload specific muscles with endurance training? Also describe the reasons for greater blood flow to tissues, and when these adaptations occur.
Specificity of Local changes
- overloading specific muscle groups with endurance training ENHANCES exercise performance and Aerobic Power by facilitation Oxygen transport and Oxygen use at LOCAL level of trained muscles
- May result form Greater blood flow in active muscles due to:
- Increased microcirculation
- More effective redistribution of cardiac output
- The combined effect of both factors
These adaptations occur only in SPECIFICALLY trained muscles and only become apparent in exercise that activates this musculature.
Describe the components of the individual differences principle. Also discuss when benefits of optimal training occurs
Individual Differences Principle:
-All individuals do NOT respond similarly to a given training stimulus
(everyone still respond same to training as they all get benefits of training when overloading system)
-when a relatively homogenous group begins a regimen of exercise training, one CANNOT expect each person to achieve the SAME State of fitness after 10 or 12 weeks
-Optimal training benefits occur when exercise programs Focus on Individual needs and capacities of participants
Describe the components of reversibility principle and how athletes are also affected by it and their solutions
Reversibility principle:
- DETRAINING occurs rapidly when a person terminates participation in regular physical activity
- Only 1 or 2 weeks of detraining Reduces both metabolic and exercise capacity, with many training improvements fully lost within several weeks
- Even among highly trained athletes, the beneficial effects of many years of prior exercise training remains Transient and reversible
- most athletes begin a RECONDITIONING Program several months prior to start of competitive season or maintain some moderate level of off-season, sport-specific training to SLOW the decline.
Describe the changes to anaerobic system that occur with training
Important changes that occur with anaerobic power training;
- Increased levels of anaerobic substances
- Increased Quantity and Activity of key enzymes that control the anaerobic phase of glucose catabolism
- Increased Capacity to generate high levels of blood lactate during all-out exercise
you also increase glycolytic capacity, PCr, ATP
Expalin how the Aerobic system changes with training. Be sure to include the effects of metabolic machinery. What allows for one to have higher percentage of aerobic capacity?
Aerobic training changes with training:
- Aerobic training improves the Capacity for Respiratory Control in skeletal muscle
- Metabolic Machinery- endurance-trained skeletal muscle fibers contain LARGER and more Numerous Mitochondria than Less active fibers
- This greatly increases the capacity of Subsarcolemmal and intermyofibrillar muscle mitochondria to generate ATP
- INCREASED MITOCHONDRIAL Material , NOT Increased enzymatic activity- allows a person to Sustain in higher percentage of aerobic capacity during prolonged exercise without blood lactate accumulation .
Describe how fat metabolism changes aerobic system in training
Fat metabolism- Endurance training INCREASES the Oxidation of Fatty acids (lipolysis) for energy during rest and submaximal exercise (save glycogen stores)
What are the factors that contribute to a heightened training induced increased lipolysis?
Factors that contribute to heightened training-induced increased lipolysis:
- GREATER Blood flow within trained muscle
- More Fat-mobilizing and fat-metabolizing enzymes
- ENHANCED muscle mitochondrial respiratory capacity -DECREASED Catecholamine release for the SAME Absolute power output.
Describe the changes in aerobic system that occur regarding carbohydrate metabolism. Also discuss how carbohydrate is reduced and fatty acid combustion is increased with endurance training.
Carbohydrate Metabolism: trained muscle exhibits ENHANCED capacity to Oxidize carbohydrate during maximal exercise
(aerobic training leads to more Carbodhyrate use during training) When overload system, primarily burn carb as fuel.
-Reduced carbohydrate as Fuel, and Increased fatty acid combustion in sub maximal exercise with endurance training results from the combined effects of the following:
-DECREASED muscle glycogen use
-REDUCED glucose production
-REDUCED use of plasma-borne glucose
(at rest, you are burning fat; during exercise you will use fat as fuel)
Describe the changes in muscle fibers that occur in aerobic system with training. How does each fiber change? What do slow-twitch muscle fibers contain?
Muscle fibers- Aerobic training elicits metabolic Adaptations in each muscle fiber type
-ALL Fibers MAXIMIZE their already-existing aerobic Potential
-Highly trained endurance athletes have LARGER Slow-twitch fibers ; FAST-TWITCH fibers of athletes trained in ANAEROBIC POWER activities occupy a GREATER portion of muscle’s Cross-sectional area.
Slow-twitch muscle fibers with High capacity to generate ATP aerobically contain relatively LARGE quantities of MYOGLOBIN
What kind of adaptations are important in aerobic system?
adaptations in cardiovascular function with aerobic system
-important for aging successfully (keep you alive and healthy)
have to make sure above submaximal zone (80%)
Describe how the size of heart Changes after aerobic training. Also include why this heart Changes. Compare heart size to endurance athletes versus sedentary individuals
long term aerobic training INCREASES the heart’s Mass and Volume with Greater Left-Ventricular End-Diastolic volumes during rest and exercise
- This ENLARGMENT is characterized by ECCENTRIC hypertrophy (Increased size of the left ventricular cavity) and CONCENTRIC hypertrophy (increased Thickening of left ventricle)
- Endurance athletes average a 25% LARGER heart volume than sedentary counterparts
- Training duration affects cardiac SIZE and STRUCTURE
Differentiate between the effects of chronic stress and temporary stress on the heart.
Chronic stress- Disease can induce considerable cardiac Enlargement and this hypertrophied heart represents an Enlarged, Distended, and functionally Inadequate organ unable to deliver sufficient blood to satisfy minimal resting requirements.
Temporary stress- Exercise training imposes only a temporary Myocardial stress, so rest period provide time for RECUPERATION and demonstrates normal systolic and diastolic functions and SUPERIOR functional capacity to stroke volume and cardiac output.
Differentiate between functional vs pathological hypertrophy
Athletes that are endurance trained will have cardiac hypertrophy - Functional because they increase cardiac output (not just during exercise)
Pathological hypertrophy - heart cannot deliver amount of oxygen needed for the to muscle, so body responds to increase size of heart and be able to increase ejection fraction (but not getting ejection fraction)
person who is sick, body is trying to respond same way, but NOT getting result
Functional hypetrophy- temporary stress while exercising. at rest, the trained athletes are not under stress, so hypertrophy can be reversible; , the trained individuals have normal systolic, diastolic function
pathological hypertrophy- Chronic stress; sometimes not reversible by the time it is caught. This is induced because of stress of heart, and trying to compensate SV, cardiac output still increased while at rest. .
Describe how training affects ventilatory endurance. How does exercise benefit from sustained inspiratory pressure?
Exercise training allows for Sustained, Exceptionally high levels of sub maximum ventilation
- Exercise training also *increases INSPIRATORY MUSCLE CAPACITY to generate force and sustain a level of Inspiratory pressure, benefiting exercise performance by:
- Reducing overall exercise energy demands because of less respiratory work
- Reducing lactate production by the ventilatory muscles during intense, prolonged exercise
- Enhancing how ventilatory muscles metabolize circulating lactate as metabolic fuel
- increasing inspiratory strength and enhancing aerobic ability so less lactate produced by them during exercise.
How does endurance training affect blood lactate concentration?
Endurance training LOWERS blood lactate levels and extends exercise before onset of blood lactate accumulation during exercise of INCREASING Intensity by:
- Decreasing the rate of Lactate Formation during exercising
- Increasing the rate of Lactate CLEARANCE during exercise
- COMBINED Effects of decreasing lactate formation and increasing lactate removal
- it takes longer for lactate to appear in trained athletes because of decreased rate of formation and increased rate of clearance