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Home > An Objective Method to Accurately Measure Cardiorespiratory Fitness in Older Adults Who Cannot Satisfy Widely Used Oxygen Consumption Criteria.

TitleAn Objective Method to Accurately Measure Cardiorespiratory Fitness in Older Adults Who Cannot Satisfy Widely Used Oxygen Consumption Criteria.
Publication TypeJournal Article
Year of Publication2018
AuthorsDougherty, RJ, Lindheimer, JB, Stegner, AJ, Van Riper, S, Okonkwo, OC, Cook, DB
JournalJ Alzheimers Dis
Volume61
Issue2
Pagination601-611
Date Published2018
ISSN1875-8908
KeywordsAged, Cardiorespiratory Fitness, Exercise Test, Female, Humans, Male, Middle Aged, Oxygen Consumption, Reproducibility of Results, Wisconsin
Abstract

Cardiorespiratory fitness (CRF) is routinely investigated in older adults; however, the most appropriate CRF measure to use for this population has received inadequate attention. This study aimed to 1) evaluate the reliability and validity of the oxygen uptake efficiency slope (OUES) as a sub-maximal measurement of CRF; 2) examine demographic, risk-factor, and exercise testing differences in older adults who satisfied standardized criteria for a peak oxygen consumption (V̇O2peak) test compared to those who did not; and 3) determine the difference between directly measured V̇O2peak values and OUES-predicted V̇O2peak values. One hundred ten enrollees from the Wisconsin Registry for Alzheimer's Prevention participated in this study. Participants performed a graded maximal exercise test and wore an accelerometer for 7 days. For each participant, the OUES was calculated at 75%, 90%, and 100% of exercise duration. V̇O2peak was recorded at peak effort, and one week of physical activity behavior was measured. OUES values calculated at separate relative exercise durations displayed excellent reliability (ICC = 0.995; p 

DOI10.3233/JAD-170576
Alternate JournalJ. Alzheimers Dis.
PubMed ID29226867
PubMed Central IDPMC5745283
Grant ListR01 AG027161 / AG / NIA NIH HHS / United States
K23 AG045957 / AG / NIA NIH HHS / United States
UL1 RR025011 / RR / NCRR NIH HHS / United States
R01 AG021155 / AG / NIA NIH HHS / United States
R21 AG051858 / AG / NIA NIH HHS / United States
UL1 TR002373 / TR / NCATS NIH HHS / United States
P50 AG033514 / AG / NIA NIH HHS / United States
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Source URL: https://www.j-alz.com/content/objective-method-accurately-measure-cardiorespiratory-fitness-older-adults-who-cannot