Supporting data for "A low-frequency and/or low-volume exercise approach to address the perceived barriers to exercise in adults with central obesity and adults with chronic illness comorbid with depression"

<p dir="ltr">This dataset includes data from two randomized controlled trials (RCTs), one secondary analysis, and one meta-analysis.</p><p dir="ltr">Chapter 2 presents a RCT that examined the effects of a duration-matched once-weekly and thrice-weekly high-intensity interval training (HIIT) regimen on total body fat mass in adults with central obesity. Participants were randomly allocated in a 1:1:1 ratio to once-weekly HIIT (n = 105), thrice-weekly HIIT (n = 105), and health education control (n = 105). The dataset of this chapter consists of data on 19 variables (including outcomes on body composition, anthropometric measurements, glucose and cholesterol markers, and cardiorespiratory fitness) for 315 participants at 3 assessment timepoints (baseline, week 16, and week 32).</p><p dir="ltr">Chapter 3 also presents a RCT that investigated the effects of one year of once-weekly, single-bout Norwegian 4 × 4-minute HIIT (25 minutes of exercise per week) on liver fat and adiposity. Participants were randomly allocated in a 1:1 ratio to HIIT (n = 80) or a health education control (n = 80). The dataset of this chapter consists of data on 23 variables (including outcomes on liver fat, body composition, anthropometric measurements, glucose, cholesterol and liver enzyme markers, and cardiorespiratory fitness) for 160 participants at 3 assessment timepoints (baseline, month 12, and month 24).</p><p dir="ltr">Chapter 4 is a secondary analysis of the RCT in Chapter 2, in which the effects of once-weekly and thrice-weekly walking/jogging HIIT on lean mass were examined. The dataset of this chapter consists of data on lean mass outcomes for the 315 participants at the 3 assessment timepoints (baseline, week 16, and week 32).</p><p dir="ltr">Chapter 5 presents a meta-analysis of 36 RCTs addressing the feasibility of aerobic exercise in managing the severity of depressive symptoms in adults with chronic illness comorbid with depression. The dataset of this chapter consists of summary statistics on the primary and secondary outcomes, and the trial, participant, comparator, and intervention characteristics of the individual RCTs included.</p>