Exploring the feasibility, acceptability, and safety of a real-time cardiac telerehabilitation and tele coaching programme using wearable devices in people with a recent myocardial infarction.

Background: Cardiac rehabilitation (CR) constitutes the recommended nonpharmacological approach for cardiac patients with cardiovascular disease such as people following a recent (i.e., < 4 week) myocardial infarction (MI). Recent evidence suggests that cardiac telerehabilitation may be as effective as traditional (i.e., in person) CR in people following a recent MI. Nevertheless, the feasibility, acceptability, and safety of such an exercise programme has yet to be examined.

Methods: Forty-four (11 women, 33 men) people following a recent MI were randomly allocated into two groups (online home-based and gym-based groups). The groups underwent a 24-week CR programme thrice per week. All patients performed the baseline, and 24 weeks follow up measurements where feasibility, acceptability, and safety were assessed.

Results: Eligibility and recruitment rates were found to be 61.5% and 42%, respectively. Compliance to the thrice weekly, 24-week exercise programme for the online- and gym-based groups were 91.6% and 90.9%, respectively. There were no dropouts during the exercise programmes, however four participants, two from each group, were lost to follow up at 6 months. The average percentage of peak HR (% HR_peak) for the online group was 66.6% ± 4.5 and for the gym-based group was 67.2% ± 5. The average RPE and affect during exercise was for both groups 12 ± 1 ("somewhat hard") and 3 ± 1 ("good"), respectively. During the 6-month exercise intervention period for both groups, the exercise-induced symptoms were minimal to none. The user suitability evaluation questionnaire revealed that the online real time telerehabilitation and tele coaching programme was enjoyable (4.85 ± 0.37) and did not induce general discomfort (1.20 ± 0.41).

Conclusion: Our cardiac telerehabilitation programme seems to be feasible, acceptable, safe, and enjoyable for people with a recent MI. Our participants had an overall positive experience and acceptability of the cardiac telerehabilitation and tele coaching using wearable devices.

Trial registration: ClinicalTrial.gov, ID NCT06071273, 10/02/2023, retrospectively registered.