Study Design and Patient’s Randomization
The Acute Phase Intensive Physical Activity Monitoring (ACTIVE-PA-Monitoring) trial was designed as a single-center, randomized, prospective, open-label, controlled pilot trial (with 2 parallel groups and outcomes blinded). This study is reported in accordance with the Consolidated Standards of Reporting Trials (CONSORT) checklist (Written informed consent was obtained from each patient when they could walk independently in the ward during inpatient cardiac rehabilitation between February 2021 and June 2021. All patients were 18 years or older. Patients who matched the exclusion criteria described in Table S1 of An information and communication technology–based multiperson physical activity monitoring system and the accelerometer used in this study. (A) Triaxial accelerometers and a multipatient physical activity monitoring system were used in this study. The display says, “Please hold the accelerometer to the port.” The accelerometer weighs 25 g and is 33.0 mm high, 73.8 mm wide, and 10.8 mm thick. (B) Results screen viewable by the patient. (C) A screen for medical staff to manage information from multiple patients. (D) A part of the view used to provide feedback to the patient.