CRF Testing Exam Questions & Answers 2023-24

CRF Testing Exam Questions & Answers 2023-24 Field Tests - CORRECT ANSWER--Consist of walking or running for a predetermined time or distance -The advantages of field tests are they are easy to administer to large numbers of individuals at one time, and little equipment is needed -The disadvantages are some tests can be near-maximal or maximal for some individuals, particularly in individuals with low aerobic fitness, and potentially be unmonitored fir test termination criteria or BP and HR responses Motor-driven Treadmills - CORRECT ANSWER--Can be used for submaximal and maximal testing -They provide a familiar form of exercise to many and, if the correct protocol is chosen the least physically fit to the fittest individuals across the continuum of walking to running speeds -Treadmills usually are expensive, not easily transportable, and potentially make some measurements more difficult, particularly while an individual is running -Treadmills must be calibrated periodically to ensure the accuracy of the test when VO2 is not directly measured -In addition holding on to the handrails leads to inaccurate measurements and overestimation of VO2 Mechanically Braked Cycle Ergometers - CORRECT ANSWER--Viable test modality for submaximal and maximal testing and frequently used for diagnostic testing -Advantages of this exercise mode include lower equipment expense, transportability, and greater ease in obtaining BP and ECG measurements -Also provide a non-weight-bearing test modality in which work rates are easily adjusted in small increments -Main disadvantage is cycling may be a less familiar mode of exercise to some individuals, often resulting in limiting localized muscle fatigue and an underestimation of VO2max -Must be calibrated, and the subject must maintain the proper pedal rate Step Testing - CORRECT ANSWER--An inexpensive modality for predicting CRF by measuring the HR response to stepping at a fixed rate and/or a fixed step height or by measuring postexercise recovery HR -Require little practice, usually of short duration, and stepping is advantageous for mass testing -Special precautions may be needed for those who have balance problems or are extremely deconditioned -Some step tests require an energy cost of 7-9 METs, which may exceed the maximal capacity od some participants -Inadequate compliance to the step cadence and excessive fatigue in the lead limb may diminish the value of a step test Cooper 12-min Test - CORRECT ANSWER--Cover the greatest amount of distance in 12 mins as possible -VO2max = (distance in meters - 504.9) / 44.73 1.5-mi Run/Walk Test - CORRECT ANSWER--Run/Walk 1.5 mi as quickly as possible -VO2max = 3.5 + 483 / time (min) Rockport One-Mile Fitness Walking Test - CORRECT ANSWER--Walk one mile as quickly as possible -HR obtained during last minute or immediately following completion (however may lead to overestimation) -VO2max = 132.853 - (0.1692 x body mass in kg) - (0.3877 x age) + (6.315 x gender) - (3.2649 x time in minutes) - (0.1565 x HR) -Gender: 0 for female; 1 for male 6-min Walk Test - CORRECT ANSWER--Used to evaluate CRF in populations considered to have reduced CRF such as older adults and some clinical patient populations -Clients and patients completing less than 300 m during the walk demonstrate a poorer short-term survival compared to those surpassing this threshold -VO2peak = (0.02 x meters) - (0.191 x age) - (0.07 x kg) + (0.09 x height [cm]) + (0.26 x RPP [x 10^-3) + 2.45 Astrand-Rhyming Cycle Ergometer Test - CORRECT ANSWER--Single- stage test lasting 6 min -Pedal rate set at 50 rpm -Goal is to obtain HR values between 125 and 170, with HR measured during the fifth and sixth minute of work -Average of the two HRs used to estimate VO2max from a nomogram Astrand-Rhyming Suggested Work Rate - CORRECT ANSWER--Men, unconditioned 50 or 100W -Men, conditioned 100 or 150W -Women, unconditioned 50 or 75W -Women, conditioned 75 or 100W Astrand-Rhyming Correction Factors - CORRECT ANSWER--15 = 1.10 -25 = 1.00 -35 = 0.87 -40 = 0.83 -45 = 0.78 -50 = 0.75 -55 = 0.71 -60 = 0.68 -65 = 0.65 YMCA Protocol - CORRECT ANSWER--Multistage submaximal cycle ergometer test that uses two to four 3-min stages of continuous exercise with a constant pedal rate of 50 rpm -Stage 1 requires participants to pedal against 0.5 kg (25W) resistance -Stage 2 is based on HR measurement from the last minute of stage 1 --HR <80 change resistance to 2.5 kg (125W) --HR 80-89 change resistance to 2.0 kg (100W) --HR 90-100 change resistance to 1.5 kg (75W) --HR >100 change resistance to 1.0 kg (50W) -Use stages 3 & 4 as needed to elicit two consecutive steady state HRs between 110 bpm and 70% HRR (85% HR max) --For stages 3 & 4 resistance used in stage 2 is increased by 0.5 kg (25W) per stage Submaximal Treadmill Tests - CORRECT ANSWER--Same submaximal definition (70% HRR 85% HRmax) is used, and the stages of the test should be 3 min or longer to ensure a steady state HR response at each stage -HR values are extrapolated to age-predicted HRmax and VO2max is estimated using the formula in Table 6.3 from the highest speed and/or grade that would have been achieved if the individual had worked to maximum Astrand-Rhyming Step Test - CORRECT ANSWER--Single step height of 33 cm (13 in) for women and 40 cm (15.7 in) for men at a rate of 22.5 steps per minute (when counting just the leading leg) for 5 min -Tests require a VO2 of around 25.8 and 29.5 respectively, therefore step tests are not a good choice of modality for less fit or diseased clients -HR is measured in the last minute as described for the cycle ergometer test, and VO2max is estimated from a nomogram Maritz et. al. Step Test - CORRECT ANSWER--Single step height of 12 in (30.5 cm ) and four step rates to systematically increase the work rate -A steady state HR is measured for each step rate and a line formed from these HR values is extrapolated to age predicted HRmax -The maximal work rate is determined as described for the YMCA cycle test -VO2max can be estimated from the formula for stepping in Table 6.3 3-minute YMCA Step Test - CORRECT ANSWER--12 in (30.5 cm) bench with a stepping rate of 24 steps per min -After stepping is completed HR is counted for 1 min Queens College Step Test (McArdle Step Test) - CORRECT ANSWER-- Requires participants to step at a rate of 24 steps per min for men and 22 steps per min for women for 3 min -Bench height is 16.25 in (41.25 cm) -After stepping is complete the subject remains standing wait 5 s and take 15 s HR measurement (then multiplied by 4 to get bpm) -Men VO2max = 111.33 - (0.42 x HR) -Women (VO2max) = 65.81 - (0.1847 x HR)