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NCT Number: NCT07184177

Validation of Heart Rate Monitors in Overweight and Obese Young Adults

Overweight and obesity are defined as an excessive accumulation of body fat that affects health. According to data from the World Health Organization (WHO), in 2022, there were 2.5 billion adults aged 18 years and older who were overweight, of whom 890 million were obese. In other words, 43% of adults aged 18 years and older were overweight, and 16% of them were obese.

Overweight and obesity are key risk factors for various chronic diseases such as diabetes, hypertension, cardiovascular disease, and even some types of cancer. There is evidence that mortality from cardiovascular disease, and the incidence of cancer and diabetes, varies according to the amount of physical activity. In the context of high levels of sedentary time, higher levels of moderate to vigorous physical activity are recommended. There are various ways to treat overweight and obesity, the main ones usually being lifestyle changes, such as following a healthy diet and regular physical activity, as well as following pharmacological treatments. In this project, the focus will be on the fat metabolism generated during moderate physical activity.

There are physical activity interventions aimed at increasing fat metabolism that may potentially reduce the symptoms of metabolic diseases such as obesity and type 2 diabetes. For this purpose, it is important to understand the factors that increase or decrease fat oxidation. Factors such as exercise intensity and duration are important to understand when determining maximum fat oxidation (FatMax).

The aim is to develop comprehensive research that will generate knowledge and evidence on health issues with social impact through the evaluation of commercial technologies and innovative actions that promote the prevention, treatment, and resolution of national health problems such as obesity.

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Key information

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Body mass index ≥ 25 kg/m2
  • Energy expenditure < 600 METs a week
  • Acceptance of informed consent

Exclusion criteria

  • ≥100 mL of alcohol consumption per week
  • Have limitations to perform regular physical activity
  • Have a chronic non-communicable disease
  • Answer "yes" to any of the questions on the Physical Activity Readiness-Questionnaire for Everyone (PAR-Q+), which represents a health risk.

Treatment and study plan

Primary outcomes

  1. Heart rate at maximal fat oxidation

    Time frame: 30 minutes

    Gas exchange and heart rate will be recorded throughout the exercise tests, while the rate of perceived exertion will be registered at the end of each stage using the modified Borg scale with a 0-10 rating. The average VO2 and VCO2 values of the last 2 min of each stage before RER ≥ 1.0 will be used to calculate fat and carbohydrate oxidation using the stoichiometric equations of Jeukendrup and Wallis. The maximum rate of fat oxidation and its corresponding intensity during exercise will be determined by mathematical modeling of fat oxidation kinetics, plotted against oxygen consumption (% VO2max). The symmetry, amplitude, and translation parameters of the curve will be calculated as well to represent the oxidative capacity of each subject.

  2. Resting heart rate

    Time frame: 30 minutes

    Resting heart rate of participants using 10 different heart rate monitors

Study contacts

Contact information is provided by the study sponsor or research team.

Francisco J Olivas Aguirre, PhD

CONTACT

[email protected]

+52 (656) 3058685

Sponsors and collaborators

Lead sponsor

Universidad Autonoma de Baja California

Other

Registry information

Official study title

Validation of the Accuracy of Heart Rate Monitors at Resting and Exercise at Maximal Fat Oxidation Rate in Overweight and Obese Young Adults

Important dates

Study start
2026
Primary completion
2026
Study completion
2026
First posted
Sep 19, 2025
Registry last updated
Sep 19, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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