NCT05901038

Brief Summary

This clinical trial will collect heart rate (HR) data with the Fitbit Inspire 2 fitness tracker and Polar H10 chest strap with the aim of:

  • Goal 1. Optimising and validating our artefact removal procedure.
  • Goal 2. Developing a physical activity (PA) algorithm to follow and quantify day-to-day PA based on HR measurements. A pilot study will be conducted with a total of 46 cardiac patients (group 1), 46 coached sporters with 12-week training schedule (group 2) and 46 sporters without 12-week training schedule (group 3). The three groups all engage in controlled activities. The participants' HR will be monitored continuously for an average period of 13 weeks using 2 HR monitors, i.e. the Fitbit Inspire 2 fitness tracker and the Polar H10 chest strap. They will wear the Fitbit device continuously for the whole monitoring period, while they will wear the Polar chest strap continuously for the first 24 hours and after that only during exercise. To determine participants' exercise capacity (e.g. VO2max), cardiopulmonary exercise tests (CPETS) will be carried out. For group 1, 3 CPETS will take place during the CR programme: at the start, in the middle and at the end. For group 2 and group 3, 2 CPETS will be carried out at the start and the end of the study. The monitoring period with Fitbit and Polar will end at the last CPET. All participants will record their daily efforts in an activity diary during the first week of study. Moreover, two questionnaires will be conducted at the end of the study to evaluates usability and experiences with the HR monitors.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
138

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Feb 2023

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 24, 2023

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

May 2, 2023

Completed
1 month until next milestone

First Posted

Study publicly available on registry

June 13, 2023

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2025

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

May 8, 2026

Status Verified

March 1, 2025

Enrollment Period

2.5 years

First QC Date

May 2, 2023

Last Update Submit

May 4, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • A physical activity algorithm with accompanying score

    The primary outcome of this study is an algorithm and associated score that quantifies day-to-day physical activity.

    During the entire duration of the study, on average 13 weeks

Secondary Outcomes (2)

  • Validation artefact removal procedure

    During the entire duration of the study, on average 13 weeks

  • Satisfaction heart rate monitors

    At study completion, on average after 13 weeks

Study Arms (3)

Cardiac patients (group 1)

Patients with prior myocardial infarction, percutaneous coronary intervention (PCI), cardiac ablation or cardiac surgery, attending a reimbursed cardiac rehabilitation programme in the cardiology department of the UZA.

Device: Wearing heart rate monitors

Coached sporters with 12-week training schedule (group 2)

Sporters attending a sports cardiology consultation and following a 12-week training schedule at Sport Medical Centre Nottebohm.

Device: Wearing heart rate monitors

Sporters without 12-week training schedule (group 3)

Sporters attending a sport medical check-up at S.P.O.R.T.S. (i.e., a multidisciplinary centre of expertise within UZA), but without standardized 12-week training schedule.

Device: Wearing heart rate monitors

Interventions

Participants will use 2 consumer wearable heart rate monitors: Polar H10 chest strap and Fitbit Inspire 2 fitness tracker.

Cardiac patients (group 1)Coached sporters with 12-week training schedule (group 2)Sporters without 12-week training schedule (group 3)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Groups are selected from different populations: patients participating in a cardiac rehabilitation programme at the UZA (group 1), sporters attending a sports cardiology consultation at Sport Medical Centre Nottebohm (group 2) or sporters attending a sports medical check-up at S.P.O.R.T.S. (i.e., a multidisciplinary centre of expertise within UZA, group 3).

You may qualify if:

  • Age ≥ 18 years,
  • Patients participating in the CR programme with a prior myocardial infarction without impairment of pump function, percutaneous coronary intervention (PCI), cardiac ablation or cardiac surgery, OR Sporters attending a sports cardiology consultation and following a 12-week training schedule at Sport Medical Centre Nottebohm, OR Sporters attending a sport medical check-up at S.P.O.R.T.S. who do not follow a 12-week training schedule,
  • Having a smartphone available,
  • Being capable of signing the informed consent.

You may not qualify if:

  • Patients with severe heart failure (NYHA III-IV),
  • Not able to speak and read Dutch or English,
  • Cognitive impaired (e.g. severe dementia).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Hospital Antwerp

Edegem, Antwerp, 2650, Belgium

Location

MeSH Terms

Conditions

Motor Activity

Condition Hierarchy (Ancestors)

Behavior

Study Officials

  • Hein Heidbuchel

    University Hospital, Antwerp

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 2, 2023

First Posted

June 13, 2023

Study Start

February 24, 2023

Primary Completion

September 1, 2025

Study Completion

December 31, 2025

Last Updated

May 8, 2026

Record last verified: 2025-03

Locations