Activity, Motor, Diet, Healthy, Obesity
Conditions
Keywords
Hispanic, family, digital health, obesity prevention, physical activity, nutrition
Brief summary
The purpose of this study is to assess the efficacy of a family-based digital (web and mobile phone-based) program known as Healthy Together ("Juntos") in preventing increases in body mass index and improving moderate-to-vigorous physical activity, diet quality, and percentage body fat among Hispanic adolescents.
Interventions
BEHAVIORALHealthy Together ("Juntos")
Parent-adolescent dyads will log in to a secured website for six months. The intervention will be delivered primarily through smartphones and will include didactic content on healthy lifestyle behaviors (for parents/adolescents), family behavior change content for setting weekly goals and self-monitoring health behaviors (for parents/adolescents), and positive parenting content (for parents only), all of which were developed in accordance with participant feedback based on formative intervention development work. In addition, and to increase participant compliance/reduce attrition often observed in digital health interventions, human support ("supportive accountability") will be provided. Specifically, each family will be assigned a "coach" who will use video conferencing software to engage in approximately weekly (during the first 3 months), and monthly (during the following 3 months) 20-30-minute sessions regarding the family's progress throughout the intervention period.
Sponsors
University of Miami
National Cancer Institute (NCI)
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
12 Years to 15 Years
Healthy volunteers
Yes
Inclusion criteria
Adolescent 1. Lives with participating biological parent or legal guardian; 2. Self-identifies as Hispanic; 3. Is between the ages of 12-15years old; 4. Has access to a smartphone; 5. Does not meet recommendations for physical activity as determined by a validated 2-item screener; 6. Does not meet recommendations for daily fruit and vegetable intake (proxy for diet quality) as determined by a validated 2-item screener; 7. Exceeds recommendations for screen time (proxy for sedentary behavior) as determined by a validated 6-item screener Parent 1. Is the biological parent or legal guardian of and lives with the adolescent; 2. Self-identifies as Hispanic; 3. Has access to a smartphone;
Exclusion criteria
Adolescent 1. Has BMI \<5th (underweight) or ≥95th percentile (obesity); 2. Has a parent-reported chronic medical condition (e.g., type 2 diabetes) that requires more intensive intervention; 3. Has parent-reported responses on a physical activity readiness questionnaire (PAR-Q) that indicates a serious health issue, and a physician does not approve participation; 4. Has a parent-reported cognitive or developmental delay (e.g., Down Syndrome) that may interfere with understanding program materials. Parent 1. Provides PAR-Q responses that indicate a serious health issue and a physician does not approve participation; 2. Reports family plans to move out of South Florida during the study follow-up period
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in Body Mass Index (BMI) in adolescents | Baseline and up to 12 months | Will be measured in kg/m\^2 |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change in Moderate-to-Vigorous Physical Activity (MVPA) in adolescents | Baseline and up to 12 months | Will be measured using an Actigraph (counts/seconds (Moderate=757-1111 counts/15-seconds and vigorous\>1200 counts/15-seconds)) |
| Change in Diet Quality in adolescents measured by National Cancer Institute (NCI) Automated Self-Administered 24-hour (ASA24®) Dietary Assessment Tool | Baseline and up to 12 months | Healthy Eating Index scores range from 0-100, higher scores indicate a higher quality diet |
| Change in Percentage of Body Fat in adolescents | Baseline and up to 12 months | Measured in percentage |
| Change in Body Mass Index (BMI) in parents | Baseline and up to 12 months | Will be measured in kg/m\^2 |
| Change in Moderate-to-Vigorous Physical Activity (MVPA) in parents | Baseline and up to 12 months | Will be measured using an Actigraph (in counts/minutes (Moderate=2690-6166 - counts/minute; vigorous≥6167 counts/min)) |
| Change in Diet Quality in parents measured by National Cancer Institute (NCI) Automated Self-Administered 24-hour (ASA24®) Dietary Assessment Tool | Baseline and up to 12 months | Healthy Eating Index scores range from 0-100, higher scores indicate a higher quality diet |
| Change in Percentage of Body Fat in parents | Baseline and up to 12 months | Measured in percentage |
| Change in Parenting Practices measured by the Parental involvement Scale | Baseline and up to 12 months | Measured by parental involvement subscale of the Parenting Practices measure (4-point Likert scale, higher scores indicate higher parental involvement; parent and adolescent report) |
| Change in Communication measured by Parent Adolescent Communication Scale | Baseline and up to 12 months | Measured by the Parent-Adolescent Communication Scale (5-point Likert scale, higher scores indicate more positive communication; parent and adolescent report) |
| Change in Health-related Positive Parenting Practices measured by the Parenting Strategies for Eating and Activity Scale | Baseline and up to 12 months | Measured by the Parenting Strategies for Eating and Activity Scale (5-point Likert scale, higher scores indicate more use of parent strategies for heathy eating and activity; parent and adolescent report) |
Countries
United States
Contacts
CONTACTSara St George, PhD
PRINCIPAL_INVESTIGATORSara St George, PhD
University of Miami
Outcome results
None listed