Physical Activity
Conditions
Keywords
adolescent health, Latina, teenager, mHealth, fitness tracker
Brief summary
This study will test a physical activity intervention for Latina teenagers. Investigators will recruit 200 Latina adolescents who are currently under-active to participate in this 12-month study. Participants will be referred to the study by their primary care provider. Half of the participants will be randomly selected for the Intervention group, and will receive an individual counseling session and access to a personalized website. These participants will also receive a Fitbit activity tracker to help with goal setting and monitoring, plus weekly text messages and access to the study Instagram account to remind participants to be physically active. Those assigned to the control group will receive the Fitbit activity tracker.
Detailed description
This study will conduct a randomized trial to evaluate the efficacy of a theory-based, individually tailored, multi-technology intervention on increasing physical activity in Latina adolescents, compared to a control group receiving only a physical activity tracker (a Fitbit). The study team will recruit adolescent (age 13-17) Latinas (N=200) who are currently under-active to participate in the 12-month trial. Those randomized to the Intervention arm will receive a one-on-one counseling session and access to an individually tailored multi-media website. Key intervention components will be reinforced through text messaging to aid goal setting, a physical activity tracker (Fitbit) to set goals, track and log activity, and access to a study Instagram account to reinforce exposure to web content. The primary outcome will be increases in moderate-to-vigorous activity between baseline and 6 months. Secondary outcomes will include changes in activity at 12 months, potential mediators of the intervention, costs of delivering the intervention, behavior change trajectories from continuous data from Fitbits, potential moderators, and changes in physiological and psychological variables.
Interventions
BEHAVIORALMulti-technology MVPA intervention
Participants will receive a one-on-one counseling session and access to an individually tailored multi-media website. Key intervention components will be reinforced through text messaging to aid goal setting, a physical activity tracker (Fitbit) to set goals, track and log activity, and access to a study Instagram account to reinforce exposure to web content.
Sponsors
University of California, San Diego
Family Health Centers of San Diego
National Heart, Lung, and Blood Institute (NHLBI)
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
FEMALE
Age
13 Years to 17 Years
Healthy volunteers
No
Inclusion criteria
* self identify as Latina * age 13-17 * read, write, and speak English * be a current patient at FHCSD * be under-active (engaging in 60 min/day of MVPA on fewer than 5 days per week) * regular access (≥2 times/week) to Internet and a smart phone that can receive text messages
Exclusion criteria
* unwillingness to be randomized to one of the two conditions * self-reporting any condition that would impair ability to participate in physical activity for at least 10 minutes at a time
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Meeting guidelines for physical activity | 6 months | Proportion of participants meeting guidelines of 60 min/day of moderate to vigorous physical activity (MVPA) measured by Fitbits |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Maintenance of MVPA | 12 months | Proportion of participants meeting guidelines of 60 minutes/day of MVPA measured by Fitbits. |
| Processes of Change for Physical Activity (POC) | 12 months | Questionnaire that tracks cognitive and behavioral processes related to MVPA change |
| Stages of Change for Physical Activity (SCPA) | 12 months | Questionnaire that determines what stage of exercise engagement the participant is currently in (precontemplation, contemplation, preparation, action, maintenance), and is used to stage-match treatment. |
| Self-Efficacy for Physical Activity (SE) | 12 months | Questionnaire that measures self-efficacy to become physically active across diverse contexts |
| Social Support for Exercise (SSE) | 12 months | Questionnaire measuring social support specifically in relation to exercise with three subscales (friends, family, rewards/punishments) |
| Outcome Expectations Scale | 12 months | Questionnaire that measures the beliefs regarding the consequences of physical activity participation |
| Technology Engagment | 12 months | Tracks activity on the study website (logins, goal setting, questionnaires answered), Fitbit activity (days worn, sync frequency), texting activity (% of interactive texts responded to), Instagram activity (views, likes) |
| Physical Activity Neighborhood Environment Survey (PANES) | 12 months | Questionnaire that measures perceptions of neighborhood environment regarding walking and bicycling. |
| Vital Signs | 12 months | Height, weight, resting blood pressure |
| Perceived Stress Scale (PSS) | 12 months | Questionnaire used to assess stress levels |
| Demographics | Baseline | Age, race, parent education and income, marital status, acculturation |
| Physical Activity Enjoyment Scale (PACES) | 12 months | Questionnaire that assesses level of personal satisfaction from physical activity |
| Patient Health Questionnaire for Adolescents (PHQ A) | 12 months | Questionnaire that assesses the degree of depression severity. Scores range from 0 to 27, with higher scores indicating more severe symptoms. |
| Dysmorphic Concern Questionnaire (DCQ) | 12 months | Measures a person's degree of body image concern. Scores range from 0 to 21, with higher scores indicating greater preoccupation/anxiety with physical appearance. |
| International Physical Activity Questionnaire Short Form (IPAQ-SF) | 12 months | A survey used to measure physical activity and sedentary behavior |
| Satisfaction Survey | 12 months | Questionnaire that measures a study participant's satisfaction with various study components as well as their overall experience in the study |
Countries
United States
Outcome results
None listed