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Updated: Jan 19, 2026

A Real-World High-Intensity Interval Training Protocol for Cardiorespiratory Fitness Improvement
Published on: February 22, 2022
High-Intensity Interval Training in Cardiac Rehabilitation
Yaoshan Dun1, Joshua R Smith2, Suixin Liu3
1Division of Cardiac Rehabilitation, Department of Physical Medicine and Rehabilitation, Xiangya Hospital Central South University, 87 Xiangya Road, Changsha, Hunan, P.R. China; Division of Preventive Cardiology, Department of Cardiovascular Medicine, Mayo Clinic, 200 First Street Southwest, Rochester, MN 55905, USA.
Abstract:
Recently, high-intensity interval training (HIIT) has been recognized as a safe and effective alternative to moderate-intensity continuous training for older patients with cardiovascular disease (CVD) in cardiac rehabilitation settings in an effort to improve health outcomes. This brief review considers general principles and suggestions for prescription of HIIT for older patients with CVD, specific challenges pertaining to older adults, the physiologic mechanisms by which HIIT contributes to improvements in peak Vo2, and the effects of HIIT on cardiovascular health in older patients with coronary artery disease and heart failure.
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