Acute and chronic cardiovascular responses to concentric and eccentric exercise in older adults with knee osteoarthritis.

"Declarations Ethics approval and consent to participateThis study was approved by the University of Florida Institutional Review Board, and all procedures on human subjects were conducted in accordance with the Helsinki Declaration of 1975, as revised in 1983. All participants provided written, informed consent to participate. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding National Institute of Arthritis and Musculoskeletal and Skin Diseases of the National Institutes of Health (NIH), AR059786 and K Award AR061146-01A1."

"This research is a secondary analysis of a four-month randomized, controlled, single-blinded study of two differing, work-matched resistance training (RT) protocols (concentric and eccentric controlled) against a non-RT control group. This study followed the Consolidated Standards of Reporting Trials (CONSORT) 2010 guidelines for reporting parallel group randomized trials []. The study was registered as a clinical trial NCT00187863."