Lab 6 Flashcards
What 3 techniques are used to estimate VO2max in lab 6
Non-exercise regression equations, submaximal HR, and step test recovery HR
What is the “gold standard” for determining cardiorespiratory fitness
VO2max
Why is determining VO2max via indirect calorimetry during maximal graded exercise often unpractical
It needs expensive equimpent, trained technicians, highly-motivated participants, and sometimes physician subervision
What is a common measure of estimating VO2max
Measuring HR while exercising or immediately after in response to submaximal load
What is the relationship between HR and power output
Positive and near linear
When is steady state HR reached
When someone’s HR hasn’t changed more than 6 bpm for 2 consecutive mins
When can the linear range between HR and exercise intensity best be determined
Between 120 bpm and 85% max HR
How will HR-VO2 lines change person to person
It will always be linear but a steeper slope indicates better fitness
How long is the stepping exercise to estimate VO2 max
3 mins according to the Queens College
How are HR and VO2 max correlated during the step test
They are inversely related
Which 4 variables are useed to calculate non-exercise regression equations
Age, gender, body composition, and self-reported physical activity levels (physical activity rating and perceived functional ability)
What is the error in estimations of VO2 max known as
Standard error of the estimate (SEE)
Which 3 assumptions contribute to SEE (stanard error of the stimate)
Linearity of HR-VO2 relationship, similar max HR based on age, and constant exercise economy
Which 5 factors can influence the slope of the HR-VO2 relationship
Emotion, hydration, oxygen drift, temperature, diet, etc.
What is the standard deviation for max HR of people of the same age
10 bpm
What is the SEE of VO2 max predictions based on submaximal HRs
5 ml/kg/min
What is the American College of Sports Medicine’s prescription for developing and maintaining cardiorespiratory fitness
Exercsie using large muscle groups 3-5 days/wk for 20-60 mins at 50-85% VO2reserve (moderate/vigorous exercise)
What is VO2reserve
A term to descrine the actual physiological range of oxygen consumption for an individual
How is VO2 reserve (VO2R) calculated
Taking the difference between resting VO2 and VO2 max
How are target VO2R or target HRR found
By multiplying desired exercise intensity by the reserve and adding the resting value
What is Heart rate reserve (HRR)
Physiological range of HR for an individual (HRmax - Resting HR)
What percent of estimates is covered by 1 SEE
68%
What 3 things influence assumed exercise economy
Between-subject differences, cadence, and test modality
What kind of exercise program should most adults have
One that involves cardiorespiratory, resitance, flexibility, and neuromotor exercise training beyond ADLs
