Effects of Walking in Greenspace and the Built Environment in Adults With Prediabetes: A Randomized Crossover Trial
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age25-64
SponsorUniversity of Minnesota
About this trial
The goal of this randomized crossover trial is to compare the differences in psychological and physiological effects of walking in two different outdoor environments (urban/suburban commercial environments vs. urban/suburban nature areas/preserves) in adults with prediabetes. The main questions it aims to answer are:
* Do psychological measures of stress, anxiety, and affect improve more in one type of outdoor environment over the other? * Do physiological measures of stress improve more in one type of outdoor environment over the other?
As this is a crossover trial, participants will serve as their own controls. Researchers will compare both the psychological and physiological effects walking in the two types of outdoor environments.
Participants will:
* Walk 150-minutes per week for six weeks in each of the two outdoor conditions. * Visit the clinic four times, including before and after each six-week walking period. * Collect saliva samples immediately proceeding or following the four clinic visits. * Return to their pre-study level of physical activity for a 5-week washout period between each of the two walking interventions.
Eligibility criteria
Qualifiers
25-64 years old.
Classified as overweight or obese with BMI 20.0-39.9 kg/m2 per self-report and a BMI of 20.0- 41.9 kg/m2 upon actual measure.
Documentation* of a PreD diagnosis within one year of enrollment by physician or primary care provider based on lab tests showing a fasted blood glucose of 100-125 mg/dL, a 2-hour oral glucose tolerance test of 140-199 mg/dL, or an HbA1c level of 5.7%-6.49%271; OR a study screening lab value of HbA1C within the aforementioned range.
Currently engaged in ≤100 min/week of moderate to vigorous exercise -confirmed via a 7-day activity recall.
Disqualifiers
Individuals <25 or >64: younger individuals may have not yet reached physiological maturity and in whom PreD prevalence is low; older individuals are more likely to have contraindications to PA and other comorbidities.
BMI <20 or ≥42.
Individuals with an HbA1c level <5.7% or >6.4%.
Currently engaged in >100 min/wk of PA.
Trial design
Treatments tested in this trial
- Nature-based Walking
- Built-environment/Commercial Walking
Treatment groups
216 Participants
are divided into 2 treatment groupsSponsors and collaborators
University of Minnesota
Lead sponsor
Northwestern University
Collaborator
Source ClinicalTrials.gov