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APHA Scientific Session and Event Listing

Recorded presentation

Peg Allen, MPH¹, Carla J. Herman, MD, MPH¹, Janice L. Thompson, PhD, FACSM², Venita Wolfe, BA³, Novaline Wilson, MPH³, Ayn Whyte, BS³, and Georgia Perez³. (1) Geriatrics Division, Department of Internal Medicine, University of New Mexico School of Medicine, 1720 Louisiana Blvd. NE, Suite 312, Albuquerque, NM 87110, 505-272-0823, marallen@salud.unm.edu, (2) Department of Exercise and Health Sciences, Centre for Sport, Exercise and Health, The University of Bristol, Tyndall Avenue, Bristol, BS8 1TP, United Kingdom, (3) Office of Native American Diabetes Programs, Department of Internal Medicine, University of New Mexico School of Medicine, 1720 Louisiana Blvd. NE, Suite 312, Albuquerque, NM 87110

Background: Native Americans experience higher rates of obesity and type 2 diabetes and related complications as compared to the general U.S. population.

Methods: We recruited 200 volunteer urban Native American women aged 18-40 without diabetes from the general community. The 100 women randomized to the intervention group received culturally guided group sessions on healthful eating and physical activity between baseline and 6-month measures. Measures included fasting blood glucose and insulin, body composition, self-reported dietary intake and physical activity, and a submaximal bicycle fitness test.

Results: At baseline, 21% had prediabetes (fasting blood glucose 100–125 mg/dl). Women with prediabetes were older, had higher body mass index (kg/m²) and %bodyfat and were less physically active at baseline than women with normal blood sugar (p<.05). Regardless of intervention group status, women with prediabetes were more likely to reduce intake of sugared beverages (p=.04) and to start vigorous intensity physical activity (p=.03) between baseline and 6-months than women with normal glucose. Women with prediabetes had reduced fasting blood glucose (p<.001) and insulin resistance (p=.01) at 6-months from baseline compared to women with normal glucose. At 6-months, intervention group women with prediabetes also increased total fitness test time (p=.04) and reduced dietary %carbohydrate (p=.01) and diastolic blood pressure (p=.03) compared to control group women with prediabetes.

Conclusions: Women with prediabetes at baseline reduced some risk factors for type 2 diabetes within six months after learning their baseline results. Intervention group women with prediabetes experienced additional benefits.

Learning Objectives:

• Identify 4 major components of the healthy lifestyles intervention.
• Describe pros and cons of the dietary and physical activity measures.
• Discuss strategies to enhance effectiveness of low-intensive healthy lifestyle interventions.

Keywords: American Indians, Primary Prevention

Presenting author's disclosure statement:

Any relevant financial relationships? No

Recorded presentation