Prescreening
What are the two types of prescreening?
Self-administered (PARQ +)
Professionally supervised
What are the 5 health related components of fitness
Cardiorespiratory fitness
Body composition
Flexibility
Muscular strength
Muscular endurance
As exercise intensity increases, what happens to HR, systolic BP, and Diastolic BP
HR increases
Systolic BP increases
Diastolic BP stays the same of slightly decreases
What is occurring in the heart during the P-Wave
Atrial depolarization and contraction
What are the 4 tasks are included in the professionally supervised screening?
Informed consent
Exercise preparticipation health screening
Health history
Cardiovascular risk factor analysis
What is the difference between physical activity and exercise
Physical activity is any movement requiring energy above rest
Exercise is planned structured with the purpose to improve physical fitness
What is the difference between relative and absolute VO2 (name the units)
Relative ml/kg/min takes into account
Absolute L/min does not take into account Body weight
What is the conduction pathway in the heart we discussed
SA Node, AV Node, Bundle of His, Bundle Branches, Purkinje Fibers
In the preparticipation prescreening how is regular physical activity defined
30 minutes of moderated aerobic activity 3 days a week for 3 months
What is the MET’s required for moderate intensity exercise
3.0 – 5.9
What is the difference between VO2 max and VO2 peak? And how can we tell the difference during a test?
Max is the true max, peak occurs when a true max was not reached due to factors like leg fatigue etc
Plateau in Vo2
RER > 1.05
REP > 17
Using the big box method, what is the formula for determining HR
300/boxes between R waves
What are the 3 factors that are assessed in the preparticipation prescreening
Physical activity level
Known disease or signs and symptoms of disease
The desired intensity
What 3 factors influence risk for a cardiac event during exercise?
Presence or absence of disease
Exercise intensity
Physical fitness
What is the formular for VO2 and explain each part
VO2 = (HR x SV) x (avo2 diff)
What causes a positive deflection in the ECG?
When the signal moves towards a positive pole of a lead
Name 5 risk factors for cardiovascular disease
Age, family history, smoking, physical activity, BMI/waist circumference, Blood pressure, lipids, blood glucose.
What are the full physical activity guidelines (including for additional substantial benefits)
150 mins of mod aerobic or 75 mins of vig aerobic exercise
2 days of strength
Additional health benefits 300 mins of mod or 150 mins of vig
What calibrations need to be completed prior to conducting the test and what is the most common protocol used for treadmill VO2 testing?
Gas and Flowmeter
Bruce Protocol
Name an arrhythmias that can occur in the atria. Briefly explain what is happening
PAC signal originates in the atria but not in the SA node as a result the beat occurs early
Afib no organized contractile activity in the atria