Effects of Exercise on Lipids and Endothelial Function in Youth

During participation in the study, participants will be asked to wear a watch called a Garmin Vivosmart tracker. They will wear this watch for one week at a time, three separate times during the study. The watch looks very similar to a FitBit. The study team will take measurements from the Garmin tracker at every study visit and perform a Laser flow Doppler test to assess blood flow and Veggie Meter readings to assess vegetable intake during the baseline and 6-month follow-up visits.

Participants will complete all other standard-of-care Healthworks! procedures during their time in this study, including routine blood draws, mental health screenings, and physical exams. The study team will collect this information from participant medical records.

It may not always be possible to align participant study visits with a clinical Healthworks visit, so participants may need to come in a separate time for the study procedures to be completed.

The Twilio® text messaging platform will be used to send text message notifications and reminders during the course of study participation for follow up visits, and daily reminders for participants to record their at-home study procedures. Participants can opt-out from these notifications if they choose.

The study team expects each study visit to last about an hour. The study team also expects that participants will be in this research study for 6 months.

Inclusion criteria

• Age: 10-20 years
• Obesity as defined by BMI ≥ 30 kg/m2 OR BMI ≥ 95%ile for age and sex
• Planned to start the Healthworks! structured weight loss program.
• English or Spanish speaking -

Exclusion criteria

• Physician judgement about inability to finish the protocol

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