Dynamo: a Tailored Lifestyle Promotion Intervention Among Pediatric Patients With Cardiometabolic Risk Factors (CIRCUIT)

Implementing Dynamo: a Tailored Lifestyle Promotion Intervention Among Pediatric Patients With Cardiometabolic Risk Factors

The Dyn@mo lifestyle intervention (CHU Sainte-Justine, Quebec, Canada) targets children and adolescents aged 6 to 17 years old with cardiometabolic risk factors, such as obesity, hypertension, disorders in glucose regulation or dyslipidemia. Its primary goal is to promote physical activity and reduce sedentary time to improve childrens' cardiometabolic profile. To do so, the intervention relies on gathering data on mobility and physical activity using wearable sensors. These data provide a detailed picture of real-life conditions and physical activity levels, improving the health care professional's ability to tailor counseling. The investigators are presently in the implementation phase of this intervention.

Study Overview

• Status: Recruiting
• Conditions: Obese
• Intervention / Treatment: Behavioral: Sensor based PA intervention; Behavioral: Traditional PA counseling

• Study Type: Interventional
• Enrollment (Estimated): 100
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: Melanie Henderson; Phone Number: 514-345-4735
• Study Contact Backup: Name: Tracie A Barnett; Phone Number: 5461 514-345-4931

Study Locations

• Canada
  • Quebec
    • Montreal, Quebec, Canada, H3T 1C5
      • Recruiting
      • CHU Sainte-Justine
      • Principal Investigator: Melanie Henderson
      • Contact: Melanie Henderson; Phone Number: 514-345-4735

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 6 years to 18 years (Child, Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• children ages 6 to 18 years of age with a BMI > 95th percentile for age and sex

Exclusion Criteria:

• children with a physical or psychological condition that would impair their ability to participate in physical activity

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Quadruple

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Sensor based PA intervention; Children will be equipped with a heart rate monitor, a GPS receiver and an accelerometer for collection of heart rate, mobility and physical activity free-living data during a 7-day period. This will provide a 'spatio-behavioural diagnosis' using a map-based interactive web application. This data will be used to developed a tailored plan to promote physical activity in the child's every day environment.	Behavioral: Sensor based PA intervention; Children will be equipped with a heart rate monitor, a GPS receiver and an accelerometer for collection of heart rate, mobility and physical activity free-living data during a 7-day period. This will provide a 'spatio-behavioural diagnosis' using a map-based interactive web application. This data will be used to developed a tailored plan to promote physical activity in the child's every day environment.
Other: Traditional PA counseling; In this arm, while children will wear the same sensors as in the intervention arm, the intervention will not rely on data gathered using the wearable sensors. Rather, a traditional physical activity counseling strategy will be adopted in this control group.	Behavioral: Traditional PA counseling; Children will be encouraged to enhance their physical activity levels using traditional behavioral approaches.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change in physical activity levels	Physical activity will be measured using accelerometry and we will use time spent in moderate to vigorous physical activity as our primary measure of PA	Baseline and 1 year

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change in blood pressure	Both systolic and diastolic blood pressure will be measured	Baseline and 1 year
Change in glucose homeostasis	Both fasting blood glucose, and glucose 2hr post load (oral glucose tolerance test) will be measured	Baseline and 1 year
Change in lipid status	LDL, HDL, triglycerides and total cholesterol will be measured at baseline and after 1 year of follow-up	Baseline and 1 year
Change in body mass index	We will measure height and weight at baseline and at 1 year of follow-up and calculate differences in body mass index over the 1 year period	Baseline and 1 year

Collaborators and Investigators

• Sponsor: St. Justine's Hospital

Study record dates

Study Major Dates

• Study Start (Actual): August 1, 2012
• Primary Completion (Estimated): December 1, 2030
• Study Completion (Estimated): December 1, 2030

Study Registration Dates

• First Submitted: November 26, 2012
• First Submitted That Met QC Criteria: November 28, 2012
• First Posted (Estimated): November 29, 2012

Study Record Updates

• Last Update Posted (Actual): May 25, 2025
• Last Update Submitted That Met QC Criteria: May 20, 2025
• Last Verified: May 1, 2025

More Information

Terms related to this study

• Keywords: physical activity; obesity; metabolism; environment; obese children, as defined by a body mass index > 95th percentile; for age and sex
• Other Study ID Numbers: CIRCUIT 1

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No