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WatchWell: Simple and Practical Strategies to Reduce the Negative Health Impact of Sedentary Screen Time

Sponsored by Arizona State University

About this study

The purpose of this study is to determine the feasibility, acceptability, efficacy, and participant adherence in using home-based technologies and wearable devices and simple, practical strategies to reduce the negative impact that evening screen time may have on your health.

Sedentary screen time (SST) is the most common discretionary activity among all US age and race/ethnic groups. SST is associated with poor health outcomes, including cardiovascular disease (CVD). Recreational SST (rSST) is 2-3X more detrimental to health than other forms of sedentary behavior (e.g., workplace sitting, traveling). Elucidating the mechanisms that lead to elevated harm resulting from rSST is critical. Impact of the COVID-19 pandemic to increase rSST amplifies the urgency of understanding rSST-related mechanisms that lead to detrimental health outcomes. Previous SST studies are limited in scope of intervention and outcomes. There are vital gaps in knowledge about how rSST and rSST-associated behaviors lead to increased CVD risk. Interventions applied in ecologically valid, rea…

Where this study is enrolling

Who can participate

Inclusion criteria

  • ✓≥26 years of age
  • ✓BMI ≥ 27 kg/m2\*; ≥25 kg/m2, if Asian (full or multiple race)\*\*
  • ✓Insufficiently active (per US National Guidelines for Physical Activity of 150 minutes of MVPA/Week)
  • ✓Reporting an average of ≥3 hours of recreational sedentary screen time (rSST) per day, that usually extends at least until 9:00pm.
  • ✓On a typical night, consumes calories (food and/or drink) after 8:00pm.
  • ✓Meet at least 2 criteria for metabolic syndrome
  • ✓Central adiposity: waist circumference \>40 inches (men); \>35 inches (women)
  • ✓Elevated blood pressure: SBP \>130 mmHg and/or DBP \>85 mmHg OR controlled with medication
  • ✓Low high density lipoprotein (HDL) cholesterol: \<40 mg/dL (men); \<50 mg/dL (women)
  • ✓Elevated triglycerides: \>150 mg/dL OR controlled with medication
  • ✓Elevated fasting glucose: ≥100 mg/dL OR controlled with medication

Exclusion criteria

  • ✕Conditions related to sleep disruption, including lactation, pregnancy, mid-night care providers, sleep disorders, severe sleep apnea
  • ✕History of hypoglycemia
  • ✕Pacemaker
  • ✕Caffeine consumption in excess and/or after 5pm (excess equals \>4 cups of coffee per day or equivalent)
  • ✕Involvement in other physical activity, diet, or weight loss programs/studies
  • ✕Weight change of 5% up or down in the last three months.
  • ✕Drug abuse
  • ✕THC use (smoking, edibles)
  • ✕Excessive alcohol use (for women, 8 or more drinks per week; for men, 15 or more drinks per week)
  • ✕Current smoker or user of any nicotine source - any amount or form (vapor/e-cig/tobacco/patch, gum, etc.)
  • ✕Medications that markedly impact glucose metabolism and sleep (insulin, corticosteroids, growth hormone, melatonin)
  • ✕Previous or current diagnosis of a clinical eating disorder (e.g., night eating syndrome, anorexia, bulimia, binge eating disorder); or self-report eating disorder behaviors
  • ✕Unstable or poorly controlled blood glucose (e.g., hypoglycemia, fasting glucose greater than 125 mg/dL)
  • ✕Chronic illness that may be associated with weight change (HIV/AIDS, active cancer, or uncontrolled thyroid disease)
  • ✕Shift work
  • ✕Recent or upcoming jetlag (travel 3 months prior and during study that is \>1 time zone away from Arizona)
  • ✕Current practice of evening and nighttime blue light blocking.
  • ✕Poorly controlled hypertension (SBP ≥165 or DBP ≥100)
  • ✕Any condition or circumstance that would prevent compliance to the protocol
  • ✕Use non-android phone as their primary/personal phone

Only the research team can confirm whether you qualify. The intake questionnaire is the best way to find out.

Completing a questionnaire on Clinably does not enroll you in a clinical trial or confirm your eligibility. Only the research team can determine whether you qualify to participate. These results are based on the information you provide and are intended to help you start a conversation with the research team.

Trial data sourced from ClinicalTrials.gov.