Basics Flashcards
Define locomotion
Movement from one place to another, created through muscular contractions. Requires ATP for muscle-cross bridge cycling.
Which locomotion-enabling process requires ATP?
Muscle cross-bridge cycling.
Name 3 systems of ATP resynthesis
PCr system
Glycolysis
Oxidative Phosphorylation
What is the max rate and capacity of the PCr system?
High rate
Low capacity
What is the max rate and capacity of the glycolysis system?
Moderate rate
Moderate capacity
What is the max rate and capacity of the ox. phos. system?
Low rate
High capacity
What is the key determinant for the capacity and rate of ATP resynthesis?
Complexity of the reaction
What determines the energy pathway used during physical activity?
The contractile demand of the action
Name the three fibre types in order of fatigue rate (low to high)
Type I (low) Type IIa Type IIb (high)
Effective training programmes should:
Adjust body’s ability to resynthesise ATP through different pathways.
Increase recruitment and effectiveness of sport-specific fibre types.
When developing programmes coaches should:
Understand the physiological demands of the sport
Have knowledge of training adaptations
Key physical components of fitness:
Aerobic endurance Cardio-respiratory fitness Speed Strength Power Speed endurance
Define cario-respiratory fitness:
Ability of the heart, lungs, and blood vessels to deliver oxygenated blood to skeletal muscle during exercise.
According to Carter and Jones (2000), what is the definition of aerobic endurance?
The capacity to sustain a given velocity or power for the longest possible time.
