Improvements in cognitive function following cardiac rehabilitation for older adults with cardiovascular disease

Kelly M Stanek, John Gunstad, Mary Beth Spitznagel, Donna Waechter, Joel W. Hughes, Faith Luyster, Richard Josephson, James Rosneck

Research output: Contribution to journalArticle

43 Scopus citations

Abstract

Cognitive impairment is common in persons with cardiovascular disease (CVD). Cardiac rehabilitation (CR) improves many aspects of CVD linked to cognitive impairment. The current study explored whether CR may improve cognitive function. Potential mechanisms for cognitive changes were also examined through exploratory analyses, including changes in cardiovascular fitness and cerebral blood flow. Fifty-one older adults with CVD underwent neuropsychological assessment at baseline and discharge from a 12-week CR program. Cardiovascular fitness (i.e., metabolic equivalents METs) was estimated from a symptom-limited volitional stress test. Transcranial doppler quantified mean cerebral blood flow velocity and pulsatility indexes for the middle cerebral artery and anterior cerebral artery (ACA). Repeated measures ANOVA showed improvements in global cognition, attention-executive-psychomotor function, and memory. Exploratory analyses revealed improvement in METs and changes in ACA flow velocity, but only improvement in METs was related to improved verbal recall. CVD patients exhibited improvements in multiple cognitive domains following a 12-week CR program, suggesting that cognitive impairment is modifiable in this population. Although other studies are needed to elucidate underlying mechanisms, exploratory analyses suggest that cognitive improvements may be better explained by physiological processes other than improved cardiovascular fitness and cerebral blood flow.

Original languageEnglish (US)
Pages (from-to)86-93
Number of pages8
JournalInternational Journal of Neuroscience
Volume121
Issue number2
DOIs
Publication statusPublished - Feb 1 2011
Externally publishedYes

    Fingerprint

Keywords

  • Cardiac rehabilitation
  • Cardiovascular disease
  • Cardiovascular fitness
  • Cerebral perfusion
  • Cognitive function

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this