Adherence to High-Intensity Interval Training in Cardiac Rehabilitation

Abstract

Purpose: High-intensity interval training (HIIT) is gaining popularity as a training approach for patients attending cardiac rehabilitation (CR). While the literature has focused on the efficacy of HIIT for improving cardiorespiratory fitness (CRF), particularly when compared with moderate intensity exercise, less emphasis has been placed on adherence to HIIT. The aim of this review was to summarize the current literature regarding adherence to HIIT in CR patients with coronary artery disease. Review Methods: A review identified 36 studies investigating HIIT in CR patients with coronary artery disease. Methods and data were extracted for exercise or training adherence (to attendance, intensity, and duration), feasibility of protocols, and CRF. The review summarizes reporting of adherence; adherence to HIIT and comparator/s; the influence of adherence on changes in CRF; and feasibility of HIIT. Summary: Adherence to the attendance of HIIT sessions was high and comparable with moderate-intensity exercise. However, adherence to the intensity and duration of HIIT was variable and underreported, which has implications for determining the treatment effect of the exercise interventions being compared. Furthermore, additional research is needed to investigate the utility of home-based HIIT and long-term adherence to HIIT following supervised programs. This review provides recommendations for researchers in the measurement and reporting of adherence to HIIT and other exercise interventions to facilitate a sufficient and consistent approach for future studies. This article also highlights strategies for clinicians to improve adherence, feasibility, and enjoyment of HIIT for their patients.

Physical Fitness Recovery of Athletes Based on High-Intensity Sports Intermittent Training

“…In the process of using this training method, the essential difference between intensive interval training and high-intensity interval training is that the interval time of training in the training unit is different. The interval time of intensive interval training is between 100 and 300 seconds, and the training intensity is controlled between 5% and 10% of the intensity of sports events [ 15 ].…”

Effect of high-intensity exercise on cardiorespiratory fitness, cardiovascular disease risk and disease activity in patients with inflammatory joint disease: protocol for the ExeHeart randomised controlled trial

“…HIIT exercise intensity sessions will be calculated as mean %HR peak and Borg RPE 6-20 across sessions and participants. Likewise, duration will be reported as mean session duration and average time spent in high intensity intervals 44. Tolerability of HIIT will be explored by clinical measures of disease activity with disease flares defined as increase in DAS28 >1.2 or>0.6 if DAS28 ≥3.2,45 DAPSA≥746 or ASDAS≥0.9 47…”

“…Likewise, duration will be reported as mean session duration and average time spent in high intensity intervals. 44 Tolerability of HIIT will be explored by clinical measures of disease activity with disease flares defined as increase in DAS28 >1.2 or>0.6 if DAS28 ≥3.2, 45 DAPSA≥7 46 or ASDAS≥0.9. 47 At the 3-month point, an additional questionnaire will be distributed electronically to patients in the HIIT-group (n=30), addressing patients' acceptability and satisfaction with the HIIT programme (table 3).…”

Effects of one-year once-weekly high-intensity interval training on body adiposity and liver fat in adults with central obesity: Study protocol for a randomized controlled trial

“…The session attendance and adherence to HIIT will be reported according to the recommendations of Taylor and colleagues. 34 The attendance data will be reported as the proportion of sessions attended. Adherence to the intensity (i.e., proportion of sessions meeting the prescribed intensity) and duration (i.e., number of high-intensity bouts completed) of the training will also be reported.…”