15 Questions
Which equation correctly represents the calculation of one MET in terms of oxygen consumption?
1 MET = 3.5 ml/kg/min
What is considered light physical activity in terms of METs?
Less than 3 METs
Which equation correctly represents the calculation of VO2reserve?
VO2reserve = VO2act - VO2rest
Which equation correctly represents the calculation of heart rate reserve (HR Reserve)?
HR Reserve = HR max - HR rest
Which equation correctly represents the calculation of exercise intensity using the % HR reserve method (Karvonen)?
Intensity = HRactual / HR Reserve
Which equation correctly represents the calculation of exercise capacity using the Bruce protocol?
Exercise Capacity = VO2max
Which type of graded exercise test is considered better for patients with heart disease?
Cycle ergometer
Which test is used to predict VO2max based on age, weight, sex, and time?
Rockport 1 mile fitness walking test
What is the expected response for HR during a submax test?
10+/- 2 bpm per MET
When should a test be stopped based on diastolic blood pressure (DBP)?
DBP > 115 mmHg
What is one indication to stop a test?
Subject wanting to stop
Which test is used to predict VO2max based on distance, weight, age, height, and rate-pressure product?
6 min walk test
What is considered an abnormal recovery for blood pressure?
250 mmHg Diastolic
What is an abnormal peak HR during a test?
Peak HR > 20 bpm below age-predicted max HR
What is the normal response for HR during a submax test?
10+/- 2 bpm per MET
Study Notes
Calculations and Formulas
- One MET (metabolic equivalent of task) is equivalent to an oxygen consumption of 3.5 mL/kg/min
- VO2reserve is calculated as VO2max - VO2rest
- Heart rate reserve (HR Reserve) is calculated as HRmax - HRrest
- Exercise intensity using the % HR reserve method (Karvonen) is calculated as (HRexercise - HRrest) / (HRmax - HRrest) × 100
- Exercise capacity using the Bruce protocol is calculated as total exercise time (minutes) × 1.44 + 14.8
Exercise Testing and Intensity
- Light physical activity is considered to be 1.5-2.4 METs
- The Bruce protocol is a type of graded exercise test that is better suited for patients with heart disease
- The Åstrand test is used to predict VO2max based on age, weight, sex, and time
- The Rockport test is used to predict VO2max based on distance, weight, age, height, and rate-pressure product
Test Termination and Response
- A test should be stopped if diastolic blood pressure (DBP) exceeds 120 mmHg
- One indication to stop a test is if the subject experiences leg pain or cramping
- The expected response for HR during a submax test is an increase in HR that levels off at a steady-state
- A normal response for HR during a submax test is an increase in HR that levels off at a steady-state
- An abnormal recovery for blood pressure is a failure to return to within 10 mmHg of resting value within 5 minutes
- An abnormal peak HR during a test is less than 85% of the predicted maximum HR
Test your knowledge on energy expenditures and metabolic equivalents (METs) with this quiz! Learn about how METs are used to measure the intensity and duration of physical activity, and how they account for factors like gender, height, weight, and age. Challenge yourself to identify different levels of activity based on MET values and gain a deeper understanding of measuring exercise intensity.
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