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Healthy Eating and Active Living for Diabetes - Gestational Diabetes Mellitus

2015-06-30 07:53:23 | BioPortfolio

Summary

To examine the effectiveness of a group-based lifestyle modification program followed by peer-led telephone counselling for type 2 diabetes (T2D) and cardiovascular disease risk reduction. The lifestyle modification program will support daily ambulatory activity and low glycemic index food intake among women with previous gestational diabetes mellitus (GDM).

Description

Study Objective:

To examine the effectiveness of a group-based lifestyle modification program followed by peer-led telephone counselling for type 2 diabetes (T2D) and cardiovascular disease risk reduction. The lifestyle modification program will support daily ambulatory activity and low glycemic index food intake among women with previous GDM.

Methods:

To achieve the study objective, the HEALD-GDM lifestyle modification program already proven effective for adults with T2D among women with previous GDM within 12 months postpartum will be evaluated. Women will take part in either the HEALD-GDM program (intervention) or in usual care (control). To evaluate the effectiveness of HEALD-GDM, a randomized, two-arm, before and after study design is proposed. Potentially eligible participants will be recruited from Diabetes in Pregnancy Clinics in Calgary and Edmonton, Alberta. Following identification of eligible participants, the investigators will randomize 100 participants to either the HEALD-GDM program or to usual care control (i.e., 50 per group). A Canadian Society of Exercise Physiology certified instructor (Exercise Specialist) trained in HEALD-GDM delivery will lead the program. Group-based classes will be held at community recreational centres in Calgary and Edmonton (one site each) in months one and four of the 24-week HEALD-GDM program. Theory-guided peer-led telephone counselling will supplement the program. HEALD-GDM focuses broadly on T2D prevention through lifestyle modification and will be based on a proven effective pedometer-based active living behaviour.

The primary outcome will be change in objectively measured moderate and vigorous physical activity at assessment appointments (baseline, 12 and 24 weeks). Secondary outcomes include: 1) body mass, 2) glycemic control (hemoglobin A1c), 3) musculoskeletal and cardiorespiratory fitness, 4) dietary intake, 5) metabolic biomarkers, 6) health-related quality of life (HRQL), social-cognitive mediators and 7) mental health.

Significance:

Evidence for appropriate lifestyle modification programs for this high-risk population is lacking. This study will serve to inform best practices for diabetes and cardiovascular disease risk reduction through known modifiable risk reduction targets such as healthy eating and active living.

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention

Conditions

Diabetes Mellitus Gestational Previous Pregnancy

Intervention

Healthy Eating and Active Living for Diabetes - Gestational Diabetes Mellitus

Location

Athabasca University
Athabasca
Alberta
Canada
T9S 3A3

Status

Not yet recruiting

Source

Athabasca University

Results (where available)

View Results

Links

Published on BioPortfolio: 2015-06-30T07:53:23-0400

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Diabetes mellitus induced by PREGNANCY but resolved at the end of pregnancy. It does not include previously diagnosed diabetics who become pregnant (PREGNANCY IN DIABETICS). Gestational diabetes usually develops in late pregnancy when insulin antagonistic hormones peaks leading to INSULIN RESISTANCE; GLUCOSE INTOLERANCE; and HYPERGLYCEMIA.

The state of PREGNANCY in women with DIABETES MELLITUS. This does not include either symptomatic diabetes or GLUCOSE INTOLERANCE induced by pregnancy (DIABETES, GESTATIONAL) which resolves at the end of pregnancy.

A condition of fetal overgrowth leading to a large-for-gestational-age FETUS. It is defined as BIRTH WEIGHT greater than 4,000 grams or above the 90th percentile for population and sex-specific growth curves. It is commonly seen in GESTATIONAL DIABETES; PROLONGED PREGNANCY; and pregnancies complicated by pre-existing diabetes mellitus.

A subclass of DIABETES MELLITUS that is not INSULIN-responsive or dependent (NIDDM). It is characterized initially by INSULIN RESISTANCE and HYPERINSULINEMIA; and eventually by GLUCOSE INTOLERANCE; HYPERGLYCEMIA; and overt diabetes. Type II diabetes mellitus is no longer considered a disease exclusively found in adults. Patients seldom develop KETOSIS but often exhibit OBESITY.

Urination of a large volume of urine with an increase in urinary frequency, commonly seen in diabetes (DIABETES MELLITUS; DIABETES INSIPIDUS).

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