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Updated: May 25, 2026

A Real-World High-Intensity Interval Training Protocol for Cardiorespiratory Fitness Improvement
Published on: February 22, 2022
High-intensity track and field training in a cardiac rehabilitation program
Kathleen Kennedy1, Jenny Adams, Dunlei Cheng
1Cardiac Rehabilitation Department, Baylor Jack and Jane Hamilton Heart and Vascular Hospital (Kennedy, Adams), the Institute for Health Care Research and Improvement, Baylor Health Care System (Cheng), and the Division of Cardiology, Department of Internal Medicine, Baylor University Medical Center at Dallas and Baylor Hamilton Heart and Vascular Hospital (Berbarie).
Abstract:
A 65-year-old male athlete with coronary artery disease enrolled in our cardiac rehabilitation (CR) program after successful coronary artery bypass graft surgery following an acute myocardial infarction. Unlike the typical sedentary cardiac patient in his age group, he loved to participate in hurdle events at masters division track meets (competitions for athletes aged 30 years and older). He expressed a strong desire to return to his sport, so we designed a sport-specific, symptom-limited exercise program that enabled him to train safely but at a higher intensity than is typically allowed in conventional CR programs. Although his measured peak heart rates during the sport-specific sessions were significantly higher than the calculated maximum heart rate limits usually imposed on patients during conventional CR exercise training, the patient had no adverse events and safely reached his fitness goal. When developing a CR plan, health care professionals should consider the patient's goals, not just his or her age.
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