Define Vo2 Max
The max volume of oxygen that can be taken up by the muscles per minute.
Which Energy system provides immediate energy for short, maximal-intensity exercises lasting less than 10 seconds?
ATP-PC System
List 3 ways to measure energy expenditure.
Indirect calorimetry
Lactate sampling
Respiratory exchange ratio
VO2 max testing
Name the two types of Oxygen deficit
Submaximal and maximal
List 3 Specialised training methods
Altitude training
HIIT
Plyometrics
SAQ
Define Ejection Fraction
Percentage of blood pumped out of the left ventricle with each heartbeat. EF = Stroke volume ÷ End-diastolic volume
Which enzyme breaks down PC to release energy for ATP during high-intensity exercise?
Creatine Kinase
What does Lactate Sampling measure?
Measures amount of lactate in the blood during exercise
Name the two components of EPOC
Name 1 positive and 1 negative effect of altitude training
Increases red blood cell production
Name 3 factors affecting Vo2max
Training, Gender, Age, Lifestyle, Genetics, Body composition
Which is the primary Carbohydrate fuel source used by the glycolytic system during high-intensity anaerobic exercise?
Muscle Glycogen
What does Respiratory exchange ratio measure?
Measures the ratio of carbon dioxide produced compared to oxygen consumed during exercise.
Name 2 ways the fast replenishment stage uses oxygen during recovery.
Re-saturation of myoglobin with oxygen
Resynthesis of Phosphocreatine
Resynthesis of ATP stores
Name 3 variables for HIIT to ensure its specificity
Duration of work intervals
Number of work and recovery intervals
Duration of recovery
Intensity or speed of the work interval
List 5 ways Physiology affects Vo2 max
Increased maximum cardiac output
• Increased stroke volume/ejection fraction/cardiac hypertrophy
• Greater heart rate range
• Less oxygen being used for heart muscle so more available to muscles
• Increased levels of haemoglobin and red blood cell count
• Increased myoglobin content
• Increased capillarisation around the muscles
• Increased number and size of mitochondria
• Increased surface area of alveoli
• Increased lactate tolerance
In the aerobic system, where inside the muscle cell do the Krebs cycle and the Electron Transport Chain take place?
Mitochondria
What do results of the Vo2 max testing tell the athlete's coach?
Helps identify an athlete’s aerobic fitness level
Used to set training intensities and endurance training zones
Allows comparison with other athletes or previous tests
When does OBLA occur?
4 mmol per litre
Name the 3 phases of plyometric training
1. Eccentric phase
2. Amortisation phase
3. Concentric phase
What is the average Vo2 max for teenage males and females
Males - 45-55 ml/kg/min
Female - 35-44 ml/kg/min
Draw out the Whole diagram of the Anaerobic System
Whatever Ms Burke says
What does the results of an RER closer to 0.7 indicate and closer to 1.0 indicate?
0.7 indicates the body is mainly using fat for energy
1.0 indicates the body is mainly using carbohydrates for energy
List 3 factors affecting lactate accumulation
Exercise intensity
Muscle fibre type
Rate of blood lactate removal
The respiratory exchange ratio
Fitness of the performer
List 3 benefits of SAQ training
Increase in muscular power
Improved technique (motor skills)
Improved reaction time.
Improved kinaesthetic/ spatial awareness