Final Exam Flashcards
Cardiorespiratory Fitness (CRF)
ability to perform large muscle, dynamic, moderate-to-high intensity exercise for prolonged periods of time
VO2 Max
The maximal volume of O2 that can be consumed during a progressive exercise for prolonged periods
what is the gold standard for CRF?
VO2 max
Steady-state- HR
HR that varies <5 bpm
Why should you asses CRF?
- considered one of the best indicators of collective health
- individualization of exercise prescription
- tracking and motivating toward exercise progression
- clinical purposes
- Low CRF is an independent risk factors for CV mortality
What are the clinical purposes of assessing CRF?
- aide in making occupational disability determinations
- prognostic and diagnostic of chronic disease
What are two alternative approaches to assessing CRF when VO2 is not feasible?
Field tests
- non-laboratory settings
- can be administered to groups or individuals
Submaximal exercise tests
- tests with effort limited to submaximal exertion
- typically in laboratory setting
Maximal testing advantages and disadvantages:
Advantages
- determines lung and heart health
- accurate results
- true baseline
- see your limit
- MEASURED
Disadvantages
- time consuming
- expensive
- exhaustive (safety)
Submaximal testing advantages and disadvantages:
Advantages
- takes less time
- not all the way to max
- less expensive
- doesn’t need specific people to run it
Disadvantages
- estimations
- lab setting
What are examples of CRF assessment modes?
- Field (rockport 1 mile walk, cooper 12 minute run, ymca step test, queens college step test)
- Cycle ergometer (ymca cycle ergometry test)
- Treadmill (vo2 max)
- Elliptical (elliptical submaximal test)
What would factor in to deciding how to test CRF?
- reasons for test
- risk level
- cost
- time required
- personnel required
-equipment and facilities required
What are some assumptions made for submaximal tests?
- steady-state HR is achieved for each exercise stage
- a linear relationship exists between HR and VO2 max
- the difference between actual and predicted maximal HR is minimal
- everyone is able to maintain the desired cadence/speed
What are some sources of error for submaximal tests?
- prediction of HRmax is by age
- efficiency of the participant performing the test in ergometer
- equipment calibration
- accurate measurements of HR during each stage
- having a steady-state HR at each stage
What is the standard error range for predicting maximal HR?
_+ 10-15 bpm
Predicting maximal HR is fundamental to administering what tests?
submaximal tests
General procedures for submaximal testing of CRF:
- obtain resting HR and BP immediately prior to exercise in exercise posture
- familiarization with equipment
- 2-3 minute warm up
- a specific protocol should have 2-3 minute stages with appropriate increments in work rate
- HR should be monitored atleast 2 times during each stage towards the end (if greater than 110 HRss should be reached before moving on)
- BP should be monitored in the last minute of each stage and repeated if hypotensive or hypertensive response
- Rating of perceived exertion (RPE) and additional rating scales should be monitored towards the end
- appearance and symptoms should be monitored regularly
- test should be terminated when participant reaches 70% HRR
- appropriate cool down should be initiated
What are the pretest standardizations for CRF assessents?
- wear comfortable clothes
- avoid tobacco & caffeine 3hrs prior to the test
- avoid alcohol 12hrs priori to test
- have plenty of fluids and avoid strenuous exercise for the previous 24hrs
- obtain adequate sleep night before test
- complete informed process
- complete par-q+ or other health-screening tool
- explain the RPE scale
What are some of the general indications for stopping and exercise test?
- angina
- drop in systolic BP of >10mmHg
- excessive rise is BP (sys. >250 or dia >115)
- shortness of breath, wheezing, leg cramps, or claudication
- signs of profusion
- failure of HR to increase with increased intensity
- noticeable change in heart rhythm by palpation or auscultation
- request to stop
- physical and verbal manifestations of exercise intensity
- failure of testing equipment
Absolute VO2 measurement:
L/min
Relative VO2 measurement:
ml/kg/min
What are the principles of ACSM exercise perscriptions?
- should aim to improve on or more components of health and decrease periods of physical inactivity
- should follow FITTVP
- should also consider (goals, physical ability, physical fitness, health status, schedule, physical and social environment, available facilties)
- should be based on ExRx (goals, results, and recommendations)
What are some general considerations for ExRX?
- CVD and musculoskeletal complications can be minimized by…
- following preparticipation health screening and eval. procedures
- beginning new programs at light-to-moderate intensity and gradually progressing
- follow ACSM guidelines - behavioral interventions are important to reduce barriers and enhance adherence
What are the components of an exercise training session?
- Each session should have a goal in mind
- should include three phases (warmup <15 min, conditioning- 10-60min, cool-down)
What is the frequency, intensity, and time of aerobic exercise?
3 days/week, moderate (40-59%) or vigorous(60-89%), 30-60 min/day moderate or 20-60min vigorous