Study Results
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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COMPLETED
NA
16 participants
INTERVENTIONAL
2016-06-02
2017-12-30
Brief Summary
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Detailed Description
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Pilot Aim 1: Demonstrate feasibility of recruitment and ability to perform study procedures.
Pilot Aim 2: Demonstrate the ability to measure accurately chronic disease risk factors such as diet, physical activity, weight gain, microbiome characteristics and inflammatory biomarkers.
Pilot Aim 3: Provide preliminary results on the efficacy of gardens as a preventive intervention, and estimates for a detailed power analysis for the proposed subsequent larger trial.
Aim 3a: Demonstrate that compared to non-gardeners, gardeners have 1) greater intake of fruits and vegetables; 2) better Healthy Eating Index (HEI); 3) lower Diet Inflammatory Index (DII); 4) reduced sedentary time and increased moderate-to-vigorous physical activity (MVPA); and reduced age-associated weight gain.
Aim 3b: For gardeners and non-gardeners, sample garden soil, gut, skin, and oral microbiome at six time points from April through September to characterize and compare bacterial load, pathogenic taxa, taxonomic diversity, relative dominance, indicator taxa, and metabolomic results.
Aim 3c: Demonstrate that gardening reduces inflammatory biomarkers linked to heart disease and cancer, including CRP, IL1b, IL4, IL6, IL10, and TNFa, and that the effect of gardening is mediated by diet, weight gain, physical activity and characteristics of the microbiome.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
PREVENTION
DOUBLE
Study Groups
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Community Garden Intervention Group
Participants randomized to the Community Garden Intervention Group will receive the garden intervention. Participants will be assigned a plot for one season and will receive a standard package of services and amenities to support participation in the community garden, including seeds and transplants, tools, new garden classes and access to master community gardeners in Denver.
Community Garden Intervention
The investigators will recruit 30 prospective gardeners who have not been gardening for the past two years and who are listed on Denver Urban Gardens (DUG) wait lists. DUG randomly assigns people on each garden wait list to available plots, using a lottery. This creates a natural randomized experiment. Participants randomized to the garden intervention will receive a standardized garden resource package, which includes the following:
1. A garden plot in a Denver Urban Garden
2. Seeds and plant starts
3. Introductory gardening workshop
4. Social events including garden-specific events and garden mentoring.
The non-gardening group will remain on the DUG wait lists and will not receive these resources.
Duration of the intervention is 1 year.
Wait List Control Group
The non-gardening group will remain on the DUG wait lists and will not receive the garden intervention.
No interventions assigned to this group
Interventions
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Community Garden Intervention
The investigators will recruit 30 prospective gardeners who have not been gardening for the past two years and who are listed on Denver Urban Gardens (DUG) wait lists. DUG randomly assigns people on each garden wait list to available plots, using a lottery. This creates a natural randomized experiment. Participants randomized to the garden intervention will receive a standardized garden resource package, which includes the following:
1. A garden plot in a Denver Urban Garden
2. Seeds and plant starts
3. Introductory gardening workshop
4. Social events including garden-specific events and garden mentoring.
The non-gardening group will remain on the DUG wait lists and will not receive these resources.
Duration of the intervention is 1 year.
Eligibility Criteria
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Inclusion Criteria
* Aged 18 or over
* Currently on the wait list for a new garden
* Not have gardened in the past 2 gardening seasons
Exclusion Criteria
* Aged 17 or younger
* Has gardened in the past 2 gardening seasons
18 Years
ALL
Yes
Sponsors
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University of Colorado, Boulder
OTHER
Responsible Party
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Jill Litt
Associate Professor, Environmental Studies
Principal Investigators
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Jill S Litt, PhD
Role: PRINCIPAL_INVESTIGATOR
University of Colorado, Boulder
Locations
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University of Colorado Boulder
Boulder, Colorado, United States
Countries
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Other Identifiers
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16-0138, 16-0424
Identifier Type: -
Identifier Source: org_study_id
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