Accuracy of Commercially Available Heart Rate Monitors III

Accuracy of Commercially Available Heart Rate Monitors in Cardiac Rehabilitation Patients: A Prospective, Randomized Study

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT03182439

Enrollment

Registered

2017-06-09

Start date

2017-06-22

Completion date

2017-10-11

Last updated

2017-10-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cardiac Rehabilitation

Keywords

WEARABLE HEART RATE MONITORS, ACCURACY

Brief summary

The objective of this study is to evaluate the accuracy of four heart rate monitors in cardiac rehabilitation patients during typical, supervised cardiac rehabilitation involving exercise on a treadmill and/or stationary bicycle.

Detailed description

This study will assess the accuracy of four of the best-selling optical heart rate monitors when worn by cardiac rehabilitation patients. During testing, each subject will wear: 1. Two different optical heart rate monitors (one on each wrist) 2. A Polar chest-strap based monitor 3. ECG leads The types of wrist-worn heart rate monitors assigned to each subject will be randomly assigned. The location (left or right wrist) will also be randomly assigned. Heart rate will be assessed using each of the 4 monitors with the subject on the exercise machines under each of the following conditions: 1. Pre-exercise 2. Treadmill: at 3, 5 and 7 min. 3. Stationary Cycle: at 3, 5 and 7 min.

Interventions

DEVICEFit Bit Blaze

Fit Bit Blaze Heart Rate Monitoring Device

DEVICEGarmin Forerunner 235

Garmin Forerunner 235 Heart Rate Monitoring Device

DEVICETom Tom Spark Cardio

Tom Tom Spark Cardio Heart Rate Monitoring Device

DEVICEApple Watch

Apple Watch Heart Rate Monitoring Device

Study design

Allocation

RANDOMIZED

Intervention model

FACTORIAL

Primary purpose

OTHER

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Age \> 18 years * Patients enrolled in cardiac rehabilitation program at Cleveland Clinic Main Campus

Exclusion criteria

* Presence of a cardiac pacemaker * Known chronic and persistent heart rhythm disorders * Tattoos around the wrist or forearm area * Use of a radial artery graft for coronary artery bypass grafting

Design outcomes

Primary

Measure	Time frame	Description
Heart Rate Monitor Accuracy Compared to ECG	16 minutes	The primary outcome measure is the accuracy of each heart rate monitor compared to ECG. This will be expressed by the correlation coefficient.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026