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Physiother Res Int. 2016 Mar;21(1):54-64. doi: 10.1002/pri.1619. Epub 2015 Feb 16.

Long-term Exercise Adherence After High-intensity Interval Training in Cardiac Rehabilitation: A Randomized Study.

Author information

1
K.G. Jebsen Center of Exercise in Medicine, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway.
2
Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway.
3
Department of Clinical Services, St. Olav's University Hospital, Trondheim, Norway.
4
Department of Medicine, Levanger Hospital, Nord-Trøndelag Health Trust, Levanger, Norway.
5
Department of Cardiology, St. Olav's University Hospital, Trondheim, Norway.

Abstract

BACKGROUND AND PURPOSE:

Exercise adherence in general is reported to be problematic after cardiac rehabilitation. Additionally, vigorous exercise is associated with impaired exercise adherence. As high-intensity interval training (HIT) is frequently used as a therapy to patients with coronary artery disease in cardiac rehabilitation, the objective was to assess long-term exercise adherence following an HIT cardiac rehabilitation programme.

METHODS:

A multicentre randomized study was carried out. Eligible participants were adults who had previously attended a 12-week HIT cardiac rehabilitation programme, as either a home-based or hospital-based HIT (treadmill exercise or group exercise). The primary outcome was change in peak oxygen uptake; secondary outcomes were self-reported and objectively measured physical activity.

RESULTS:

Out of 83 eligible participants, 76 were available for assessment (68 men/8 women, mean age 59 (8) years) at a one-year follow-up. Peak oxygen uptake was significantly elevated above baseline values, (treadmill exercise: 35.8 (6.4) vs. 37.4 (7.4) ml kg(-1)  min(-1) , group exercise: 32.7 (6.5) vs. 34.1 (5.8) ml kg(-1)  min(-1) and home-based exercise: 34.5 (4.9) vs. 36.7 (5.8) ml kg(-1)  min(-1) at baseline and follow-up, respectively), with no significant differences between groups. The majority of the participants (>90%) met the recommended daily level of 30 minutes of moderate physical activity. The home-based group showed a strong trend towards increased physical activity compared with the hospital-based groups.

DISCUSSION:

The results from this study have shown that both home-based and hospital-based HIT in cardiac rehabilitation induce promising long-term exercise adherence, with maintenance of peak oxygen uptake significantly above baseline values at a one-year follow-up. The implication for physiotherapy practice is that HIT in cardiac rehabilitation induces satisfactory long-term exercise adherence.

KEYWORDS:

coronary artery disease; patient compliance; secondary prevention

PMID:
25689059
DOI:
10.1002/pri.1619
[Indexed for MEDLINE]

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