Walking Exercise and Nutrition to Reduce Diabetes Risk for You (WENDY) (WENDY)

Stepping Up to Health - Walking Exercise and Nutrition to Reduce Diabetes Risk for You (WENDY)

The prevalence of Gestational Diabetes Mellitus (GDM) in Australia is approximately 5%-8%, with up to one third of all parous women who develop type 2 diabetes having a previous history of GDM. Research to determine strategies to delay or prevent the development of or progression to diabetes is vital, particularly in population groups that are at higher risk, such as GDM, and overweight women (BMI>=25). Currently, follow-up or post-partum support for women who develop GDM is limited to advice to complete a 6 week post-partum oral glucose tolerance test to exclude overt diabetes, to be repeated annually. A pilot randomized controlled trial (RCT) conducted at Mater Mothers Hospital suggested that a post-partum intervention designed to increase physical activity in women with previous GDM may be feasible. A recent study in the United States recruited women with recent GDM into an RCT where the control group received usual care and the intervention group received a web based walking program. Although the results of this study are limited, they did show an increase in pedometer steps/day between baseline and end of study. Dietary intervention has been proven to increase probability of weight loss, so a strategy of combining both a pedometer and nutrition based program may prove to be more successful for long term improvement of a healthy lifestyle to prevent type 2 diabetes.

Study hypothesis: A pedometer based intervention to encourage physical activity, combined with nutrition coaching in women with recent GDM and BMI >= 25 will result in increased weight loss, improved insulin sensitivity and increased physical activity when compared with standard care.

Study Overview

• Status: Completed
• Conditions: Diabetes; Gestational Diabetes Mellitus
• Intervention / Treatment: Behavioral: Walking group

• Study Type: Interventional
• Enrollment (Actual): 60
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Australia
  • Queensland
    • South Brisbane, Queensland, Australia, 4101
      • Mater Mothers Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: Female

Description

Inclusion Criteria:

Diagnosis of gestational diabetes mellitus and given birth in the preceding 6 months to 3 years; 18 years of age or older; BMI >= 25; Routine access to a computer; Adequate computer skills to navigate websites and email; Speak and understand English well enough to participate in the study

Exclusion Criteria:

Currently pregnant or planning to become pregnant in the next year; Current diabetes; Currently taking medications that interfere with glucose metabolism

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Intervention	Behavioral: Walking group; Internet-mediated pedometer-based walking program with gradually increasing step count goals and feedback on step counts. Also includes nutritional coaching course consisting of 1 individual session with a dietician, 4 group sessions, and monthly follow-up. Oral glucose tolerance tests pre and post-intervention.
No Intervention: Control

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
Change in body weight	pre-post

Secondary Outcome Measures

Outcome Measure	Time Frame
Change in insulin sensitivity	pre-post
Change in physical activity	pre-post

Collaborators and Investigators

• Sponsor: University of Michigan
• Collaborators: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK); Mater Mothers' Hospital

Study record dates

Study Major Dates

• Study Start (Actual): March 1, 2011
• Primary Completion (Actual): March 1, 2012
• Study Completion (Actual): March 1, 2012

Study Registration Dates

• First Submitted: November 22, 2010
• First Submitted That Met QC Criteria: November 22, 2010
• First Posted (Estimate): November 24, 2010

Study Record Updates

• Last Update Posted (Actual): May 23, 2017
• Last Update Submitted That Met QC Criteria: May 19, 2017
• Last Verified: May 1, 2017

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Glucose Metabolism Disorders; Metabolic Diseases; Endocrine System Diseases; Pregnancy Complications; Diabetes Mellitus; Diabetes, Gestational
• Other Study ID Numbers: K23 DK71552-1; K23DK071552 (U.S. NIH Grant/Contract)