Journal
JOURNAL OF CARDIOPULMONARY REHABILITATION AND PREVENTION
Volume 33, Issue 6, Pages 411-418Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/HCR.0000000000000025
Keywords
claudication; oxygen uptake; peripheral arterial disease; walking
Categories
Funding
- National Institute on Aging [R01-AG-24296]
- Oklahoma Center for the Advancement of Science and Technology grant [HR09-035]
- Oklahoma University Health Sciences Center's General Clinical Research Center [M01-RR-14467]
- National Center for Research Resources from the National Institutes of Health
Ask authors/readers for more resources
PURPOSE: To investigate the association between oxygen uptake ((V) overdotO(2)) kinetics and demographic, behavioral, and clinical factors among patients with peripheral artery disease (PAD). METHODS: A total of 85 PAD patients with intermittent claudication performed a constant load treadmill test, and breath-by-breath (V) overdotO(2) was obtained to assess (V) overdotO(2) kinetics. Demographic information, anthropometry, cardiovascular risk factors, and comorbid conditions were recorded. RESULTS: Using univariate analyses, higher values of tau ([tau], ie, slowed (V) overdotO(2) kinetics) were associated with female gender, non-Caucasian race, hypertension, dyslipidemia, and age <= 66 years. Smoking, diabetes, obesity, metabolic syndrome, height, and ankle brachial index were not significantly related to (V) overdotO(2) kinetics. Using multiple regression procedures, the identified predictors of slowed (V) overdotO(2) kinetics were female gender (4.76 [95% CI: 1.49-8.03] seconds; P = .0049), non-Caucasian race (4.70 [95% CI: 1.29-8.12] seconds; P = .0075), hypertension (12.06 [95% CI: 8.83-15.28] seconds; P < .0001), and age = 66 years (4.97 [95% CI: 1.95-7.99] seconds; P = .0015). CONCLUSIONS: In PAD patients, slowed (V) overdotO(2) kinetics are associated with demographic and clinical factors. The clinical significance is that female, non-Caucasian, and hypertensive PAD patients present central and/or peripheral limitations that may partially account for their walking impairment.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available