Final Exam Flashcards
Overload Principle?
A system does not improve until it is forced to perform above and beyond the normal/usual daily demands.
Overload can be accomplished by increasing?
Intensity, Frequency, or Duration either alone or in combinations.
Specificity of Training?
The only system that improves is the system which is overloaded.
(Multi-dimensional activities require variety in the training programs)
Heredity?
The success of a training program is limited by genetic endowment.
(Body type, gender, initial system levels, adaptation capacity, adaptation rate, etc.)
Periodization?
A theoretical and practical construct that allows for the systematic, sequential, and integrative programming of training interventions into mutually dependent periods of time in order to induce specific physiological adaptations that underpin performance outcomes.
What are the cycles in Periodization?
> Macrocycle
Mesocycle
Microcycle
Macrocycle?
Typically an entire training year but may also be a period of many months upto four years (for Olympic athletes).
Mesocycle?
Two or more cycles within the macrocycle, each lasting several weeks to several months.
Microcycle?
Typically four weeks, but could be as short as several days depending on the program.
General Adaption Syndrome (GAS)?
The predictable way the body responses to stress.
One of the foundational concepts from which periodization theories have been developed
Stages of General Adaption Syndrome (GAS)?
1) Alarm
2) Resistance
3) Exhaustion
Factors affecting performance?
1) Diet
2) Energy production Anaerobic/Aerobic sources
3) Environment
4) CNS function
5) Strength/skill
Factors affecting performance: Diet?
> Carbohydrate
> Water intake
Factors affecting performance: Energy production Anaerobic Sources?
> PCr
> Glycolysis
Factors affecting performance: Environment?
> Altitude
Heat
Humidity
Factors affecting performance: CNS function?
> Arousal
> Motivation
Factors affecting performance: Strength/skill?
> Practice
> Natural endowment: Body type, muscle-fiber type
Factors affecting performance: Energy production Aerobic Sources?
> VO2 max > Cardiac Output > O2 delivery: [Hb], PO2 > O2 extraction > Mitochondria
Training considerations:
Neuro-muscular System desired results?
Improved power generating ability
1) hypertrophy or hyperplasia
2) fast or slow myosin
Training considerations: Metabolic System desired results?
Reduced rate of fatigue, increase rate of ATP resynthesis.
1) Increased number of metabolic system enzymes
2) Increased availability of energy substrates (PCr, fats, carbs)
3) Increased removal of metabolic by-products (NH3, lactate, CO2)
Training considerations: Cardio-respiratory System desired results?
Improved delivery and removal systems. (Note: If one improves VO2max this result will occur)
1) Increase SV
2) Alter blood factors (#RBC, plasma volume,etc.)
3) Increase a-VO2 difference (need to improve metabolic systems)
Biochemical changes in skeletal muscle following metabolic system specific training: Immediate System
1) Increased muscular stores of ATP and CP
Typical increase seen in untrained following>8 wk of training–>
2) Increased concentration and activity of system enzymes (CPK, MK)
Typical increase seen in untrained following>8 wk of training–>
3) Altered myosin type and cross bridge numbers
Typical relative fiber areas of selected athletes–>
Biochemical changes in skeletal muscle following metabolic system specific training: Glycolytic System
1) Increased glycogen storage (>2x)
20 weeks of intense training–>
2) Increased concentration and activity of glycolytic enzymes.
3) Increased concentration and activity of gluconeogenic enzymes.
Increase conversion into glucose–>
Biochemical changes in skeletal muscle following metabolic system specific training: Oxidative System
1) Increased glycogen storage
2) Increased muscular stores of triglycerides
3) Increased myoglobin
4) Increased concentration and activity of pyruvate handling enzymes.
5) Increased concentration and activity of beta-oxidation enzymes
6) Increased Lipolysis
7) Increased hormone sensitivity (improvement range= 25%-200%)
8) Increased mitochondria number
9) Increased mitochondria size
10) Increased concentration and activity of oxidative enzymes
11) Improved substrate transport mechanisms. (carnitine enzymes)
12) Increased concentration and activity of hydrogen shuttles
Myoglobin?
Carries O2 into the muscle.
Beta-oxidation?
Breakdown of fat into Acetyl CoA. FFA to acetyl CoA.