Energetics
What is the primary pathway used for energy at the onset of exercise
ATP-CP
In general, the higher the exercise intensity, more energy will come from where? (Metabolic pathway)
Anaerobic Pathways
A successful endurance athlete would likely have a higher % of which type of muscle fibers
Type 1
What are the macronutrients?
Carbohydrates, Proteins, Fats
Most control systems in the body operate through what type of feedback?
Negative Feedback
Where does aerobic production of ATP happen
Mitochondria
If a 30 yo woman hits her target HR by jogging at 6 mph on a cool day, what would she need to do to achieve her target HR on a very hot day?
Decrease her speed
How will the body respond to an increase in core body temperature?
Sweating or subcutaneous vasodilation
The RDA for protein for healthy adults is what?
.8 g/kg
A chemical reaction which requires energy to be added is called what
Endergonic
These muscle fibers have a small number of mitochondria and high ATPase activity.
Type 2x
During the first 8 weeks of a strength training program, adaptations will largely come from where?
Neural adaptations
These nerve fibers carry impulses towards the CNS
afferent
In a 2-component model, how is body composition divided?
Fat Mass and Fat Free Mass
How is fatigue defined?
Inability to maintain power during repeated contractions
The lag in oxygen consumption during exercise is called what?
Oxygen deficit
Name a hormone that has the potential to increase muscle protein synthesis
testosterone
insulin-like growth factor-1 (IGF-1)
growth hormone
The maximum ability of the cardiorespiratory system to deliver oxygen to the muscle and the ability of the muscle to take up and use oxygen to produce ATP determine what?
VO2Max
This is the most accurate body composition assessment
DEXS
This XX shaped model shows the relationship between different amounts of exercise and risk of URTI
J shaped model
Why do pH changes impact exercise performance?
Hydrogen ions compete with calcium ions for binding sites on troponin, thereby hindering the contractile process
Name 2 symptoms of overtraining
decrease in performance
loss of body weight
chronic fatigue
Restoration of CP and blood and muscle oxygen stores
An increase in muscle glycogen following exhaustive exercise followed by a high carbohydrate diet is called what?
Supercompensation
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