Cited by 178Physical Activity and HealthBehavioral Health and InterventionsCardiac Health and Mental Health

A Randomized Controlled Trial of Positive-Affect Induction to Promote Physical Activity After Percutaneous Coronary Intervention

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Peterson, Janey C.·2012·Archives of Internal Medicine

Abstract

BACKGROUND: Within 1 year after percutaneous coronary intervention, more than 20% of patients experience new adverse events. Physical activity confers a 25% reduction in mortality; however, physical activity is widely underused. Thus, there is a need for more powerful behavioral interventions to promote physical activity. Our objective was to motivate patients to achieve an increase in expenditure of 336 kcal/wk or more at 12 months as assessed by the Paffenbarger Physical Activity and Exercise Index. METHODS: Two hundred forty-two patients were recruited immediately after percutaneous coronary intervention between October 2004 and October 2006. Patients were randomized to 1 of 2 groups. The patient education (PE) control group (n = 118) (1) received an educational workbook, (2) received a pedometer, and (3) set a behavioral contract for a physical activity goal. The positive-affect/self-affirmation (PA) intervention group (n = 124) received the 3 PE control components plus (1) a PA workbook chapter, (2) bimonthly induction of PA by telephone, and (3) small mailed gifts. All patients were contacted with standardized bimonthly telephone follow-up for 12 months. RESULTS: Attrition was 4.5%, and 2.1% of patients died. Significantly more patients in the PA intervention group increased expenditure by 336 kcal/wk or more at 12 months, our main outcome, compared with the PE control group (54.9% vs 37.4%, P = .007). The PA intervention patients were 1.7 times more likely to reach the goal of a 336-kcal/wk or more increase by 12 months, controlling for demographic and psychosocial measures. In multivariate analysis, the PA intervention patients had nearly double the improvement in kilocalories per week at 12 months compared with the PE control patients (602 vs 328, P = .03). CONCLUSION: Patients who receive PA intervention after percutaneous coronary intervention are able to achieve a sustained and clinically significant increase in physical activity by 12 months. Trial Registration clinicaltrials.gov Identifier: NCT00248846.

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Authors
Peterson, J. C.
Affiliations
Weill Cornell Medicine (US)
Corresponding author
Peterson, Janey C.
Venue
Archives of Internal Medicine
Published
2012-02-27
Volume
172
Issue
4
Pages
329
ISSN
0003-9926 (ISSN-L)
OpenAlex
W2027203436
Cited by
178
References
69
Citations by year
2026: 3 · 2025: 4 · 2024: 6 · 2023: 11 · 2022: 16 · 2021: 9 · 2020: 16 · 2019: 15 · 2018: 22 · 2017: 14 · 2016: 13 · 2015: 12 · 2014: 17 · 2013: 11 · 2012: 8
FWCI
10.29
Type
journal article
Language
en
Open access
Locations
  • Archives of Internal Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (n01hc25196-0-0-0)
  • National Heart, Lung, and Blood Institute (N01 HC025196, 1N01-HC-25196)
Topics
  • Health Sciences › Medicine › Physiology › Physical Activity and Health
  • Social Sciences › Psychology › Applied Psychology › Behavioral Health and Interventions
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Health and Mental Health
Keywords
self-affirmation, physical activity promotion, percutaneous coronary intervention, coronary artery disease, behavioral interventions, telephone follow-up, pedometers, behavioral contracts, patient education, energy expenditure, post-myocardial infarction rehabilitation
MeSH terms
Antihypertensive Agents, Female, Humans, Hypertension, Male, Patient Education as Topic, Cognitive Behavioral Therapy, Medication Adherence

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