Guided Imagery Lifestyle Intervention to Promote Health and Prevent Diabetes in Youth

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

240 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-05-31

Study Completion Date

2018-07-31

Brief Summary

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The childhood obesity epidemic, which falls disproportionately on Latino adolescents, represents a major public health threat to the current generation of youth, and therefore to the health of the nation overall. This project directly addresses the role of psychosocial stress in promoting obesity and metabolic disease risk, and investigates the role of the mind-body CAM intervention of guided imagery in both reducing stress and promoting healthy lifestyle behaviors that could dramatically improve the metabolic health of today's youth.

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Detailed Description

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The childhood obesity epidemic represents a major health threat to the current generation of youth, and falls disproportionately on urban, Latino adolescents. Data suggests modern inner-city minority youth suffer from high levels of psychosocial stress, and that such chronic stress contributes to obesity and insulin resistance, increasing risk of type 2 diabetes, cardiovascular disease, fatty liver disease, and other obesity-related disorders. Guided imagery is a mind-body complementary/alternative medicine (CAM) modality that offers promise as a therapeutic intervention to reduce psychosocial stress, and also to promote healthy lifestyle behaviors. In a pilot 12-week lifestyle intervention, Interactive Guided ImagerySM significantly reduced salivary cortisol, reduced sedentary behavior, and increased moderate physical activity in overweight Latino adolescents. The overall aim of this proposal is to determine the separate contributions of stress reduction guided imagery and health behavior guided imagery, when delivered in the context of a health-promoting, lifestyle intervention, on short-term and long-term stress-reduction and behavioral outcomes in predominantly Latino high school students. The study consists of a high school-based, 12-week lifestyle intervention delivered in an after school program to urban, predominantly Latino adolescents. The intervention features a health-promoting, lifestyle education class, combined with a group guided imagery intervention that is theoretically grounded in Self-Determination Theory (SDT). High school students are randomized to one of 4 intervention arms 1) Non-intervention control; 2) lifestyle education alone (LS); 3) LS + Stress Reduction guided imagery alone; 4) LS + Physical Activity/Healthy Eating guided imagery. Outcomes will be measured upon completion of the 12-wk intervention, after an additional 6-month maintenance program, and after a further 6-month period of no program contact. Primary outcomes will be change in salivary cortisol patterns and changes in physical activity and dietary intake. Secondary outcomes are insulin resistance, body fat, carotid intima media thickness, metabolic syndrome, perceived stress, well-being (self-esteem, health related quality of life), and measures of mediation by SDT constructs. Results will demonstrate the isolated effects of the lifestyle education and the two different forms of guided imagery, and could shift the paradigm of obesity prevention and treatment in urban minority youth to include attention to social stress and promotion of well-being.

Conditions

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Obesity Insulin Resistance Stress

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

HEALTH_SERVICES_RESEARCH

Blinding Strategy

NONE

Study Groups

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Non-intervention control

No intervention will be delivered.

Group Type NO_INTERVENTION

No interventions assigned to this group

Lifestyle Education (LS)

The lifestyle curriculum will be taught in twice weekly after-school sessions of \~1.25 hours, one physical activity and one nutrition-related, delivered over 12-weeks during the course of a single academic semester. The lifestyle program will utilize the "Shape Up" curriculum of SOSMentor, a community non-profit collaborator, modified to seamlessly integrate key concepts of the non-diet philosophy of "Intuitive Eating". The curriculum fully encompasses health-promoting nutrition and physical activity practices consistent with consensus recommendations .

Group Type EXPERIMENTAL

Lifestyle Education (LS)

Intervention Type BEHAVIORAL

See arm description

LS + Stress Reduction Guided Imagery

In addition to the after school lifestyle classes, participants will receive group Interactive Guided Imagery (IGI) consisting of standard stress reduction imagery practices, delivered once weekly for 12 weeks as an after school class of \~1.25 hours. The group IGI will be delivered by certified facilitators in the context of the facilitated group process known as "Council", a group communication process used by many indigenous and other cultures.

Group Type EXPERIMENTAL

Lifestyle Education (LS)

Intervention Type BEHAVIORAL

See arm description

LS + Stress Reduction Guided Imagery

Intervention Type BEHAVIORAL

See Arm Description

LS + Activity/Eating Guided Imagery

In addition to the after school lifestyle classes, participants will receive group Interactive Guided ImagerySM (IGI) delivered once weekly for 12 weeks as an after school class of \~1.25 hours. The group IGI will be delivered by certified facilitators in the context of the facilitated group process known as "Council", a group communication process used by many indigenous and other cultures. Participants in this arm will receive stress reduction IGI for 4 wks, plus 8 weekly sessions with IGI content designed to promote physical activity and healthy eating.

Group Type EXPERIMENTAL

Lifestyle Education (LS)

Intervention Type BEHAVIORAL

See arm description

LS + Activity/Eating Guided Imagery

Intervention Type BEHAVIORAL

See arm description

Interventions

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Lifestyle Education (LS)

See arm description

Intervention Type BEHAVIORAL

LS + Stress Reduction Guided Imagery

See Arm Description

Intervention Type BEHAVIORAL

LS + Activity/Eating Guided Imagery

See arm description

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Male and female enrolled in second year (i.e. sophomore year) of high school at time of consent into study, junior year at time of intervention
* Self-stated intent to complete high school
* Predominantly minority ethnicity (self-reported)
* Overweight/ obese and normal weight
* Agreement to attend up to 3 after school classes per week for the 12 weeks of the program

Exclusion Criteria

* Serious chronic illness or physical, cognitive, or behavioral disability that would prevent ability to fully receive intervention
* Prior diagnosis of clinical eating disorder, psychiatric disorder, or significant cognitive disability
* Lack of English fluency
* Participation in previous "Council" programs offered through the school
* Participation in formal weight-loss programs in 3 months preceding entry to study
* Pregnancy
* Sibling or other household member enrolling for the intervention

Minimum Eligible Age

14 Years

Maximum Eligible Age

17 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes