Changes in HIIT Exercise Compliance due to Coronavirus-2019

Many longitudinal studies were forced to adapt to shifting conditions in staff availability and participant follow-up due to the shift to virtual interaction as a result of the Covid-19 pandemic. In this longitudinal study, we are investigating the impacts of Covid-19 on participation in a high-intensity interval trainning (HIIT) intervention in patients who underwent bariatric surgery. We want to know whether the switch to virtual supervision of workouts impacted participation. Secondary to visit completion, we are also interested in how participants are keeping up with the required heart rate (about 85%-90% of maximum heart rate) during the switch from in-person to virtual supervision.

For this study, I was tasked data management and cleaning to account for around a month period in which trainings and enrollment ceased due to the start of the pandemic. Patients are also enrolled on a rolling basis so I developed a labelling system to keep track of a common time frame in which across-patient participation could be compared. We used Poisson random intercept and linear mixed effects models to analyze study participation and heart rates.

Primary Investigators Dr. Brian Callaghan, Lisa Chonis

Advisors Dr. Evan Reynolds, Dr. Mousumi Banerjee

_{University of Michigan, Michigan Medicine}