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This study aims to assess the effectiveness on an online gardening study for beginner gardeners with the goal of improving diet and physical activity in those with at least one risk factor for cardiovascular disease.
The purpose of this study is to test the feasibility of an online gardening and nutrition intervention in adults with risk factors for cardiovascular disease using a randomized controlled trial design. During the trial, the intervention condition will learn how to start a garden plot (either at home or in a community garden) and grow fruits and vegetables for personal consumption. We will also provide this group with nutrition education related to the DASH diet and basic cooking skills instruction. The control condition participants will receive no intervention during the study period.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Intervention group | Active Comparator | The intervention group will consist of a digitally delivered course designed to teach gardening, cooking and nutrition education to adults with risk factors for CVD. Participants will be invited to participate in 10 Zoom-based gardening and cooking education sessions. Zoom meetings will be facilitated by members of the study team, will present information to participants and will allow participants to ask questions and share their experiences with others. The materials will walk the participant through various aspects of starting and tending a garden. Participants will be asked to engage in a closed Facebook group. |
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| Control Group | Placebo Comparator | Participants in this group will complete all questionnaires but will not receive the digitally delivered course or access to Facebook. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Digitally delivered gardening and healthy eating course | Behavioral | The intervention group will consist of a digitally delivered course designed to teach gardening, cooking and nutrition education to adults with risk factors for CVD. Participants will be invited to participate in 10 Zoom-based gardening and cooking education sessions. Zoom meetings will be facilitated by members of the study team, will present information to participants and will allow participants to ask questions and share their experiences with others. The materials will walk the participant through various aspects of starting and tending a garden. |
| Measure | Description | Time Frame |
|---|---|---|
| Acceptability | Participant acceptability of the program based on 80% of intervention participants providing an average rating of the intervention as 4 or higher on the Weiner Acceptability Scale | 24 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Demand | Participant demand in terms of 1) ability to recruit 40 participants at baseline and 2) ability to retain at least 70% of participants as measured by number of participants who complete the follow up questionnaires at the 24 week time point | Baseline and 24 weeks |
| Practicality |
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Inclusion Criteria:
Are at least 20 years old
Have any one or more health condition(s) or risk factor(s) for CVD. These include, but are not limited to:
Reports consuming fruit and vegetables less than 5 times per day
Report less than 150 minutes of physical activity per week
Have access to stable and consistent internet access
Have a Facebook account or willing to open a Facebook account
Have a smart phone or computer and capacity to download the Fitbit app or Fitbit Connect Software
Must be willing to wear a Fitbit tracker almost continually (23.5 hours/day) for duration of study
Have access to a kitchen in or near their living space
Has access to space to start a garden (at home or in a community garden either in the ground, raised beds, or containers)
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Penn State Health Milton S. Hershey Medical Center | Hershey | Pennsylvania | 17033 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 41606653 | Derived | Veldheer S, Rutt K, Schaefer E, Kim I, Hrabovsky S, Smith B, Thomas OW, Moore AM, Pagoto S, Conroy DE, Schmitz KH, Sciamanna C. Growing Healthy Hearts: a pilot randomized controlled trial of a digitally delivered gardening, cooking, and Dietary Approaches to Stop Hypertension (DASH) diet intervention for adults with cardiovascular risk factors. Pilot Feasibility Stud. 2026 Jan 28;12(1):30. doi: 10.1186/s40814-026-01766-1. |
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| ID | Term |
|---|---|
| D002318 | Cardiovascular Diseases |
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80% of intervention group participants report completing 16 out of 20 gardening-related study tasks. |
| 24 weeks |
| Fruit and vegetable intake | Between group differences in servings of fruits and vegetables from baseline to 24 weeks as assessed by the National Cancer Institute's Diet History Questionnaire 3 | From baseline to 24 weeks |
| Physical activity | Between group differences in minutes of self-reported physical activity from baseline to 24 weeks as assessed by the International Physical Activity Questionnaire short form. | From baseline to 24 weeks |
| Cooking confidence | Between group differences in self-reported cooking confidence score as assessed by the Cooking and Food Skills (Lavelle et al. 2017) | From baseline to 24 weeks |
| Gardening confidence | Between group differences in total gardening confidence score as assessed by a 20 item gardening task questionnaire on confidence to complete gardening tasks using a 10 point Likert scale. | From baseline to 24 weeks |
| Gardening enjoyment | Between group differences in the total intrinsic motivation score for gardening activity as measured by the Intrinsic Motivations Questionnaire. | From baseline to 24 weeks |
| Social support-Healthy eating | Between group differences the self-reported Social Support for Healthy Eating Questionnaire (Salis et al., 1987). | From baseline to 24 weeks |
| Social support-physical activity | Between group differences in the self-reported Social Support for Physical Activity Questionnaire (Salis et al, 1987) | From baseline to 24 weeks |