Effectiveness of Interventions Related to Nutrition and Physical Activity in Women with Impaired Fasting Glucose: A Randomized Controlled Community Trial
Abstract
Objectives: This study determined whether fasting glucose levels in Turkish women with impaired fasting glucose aged 30-65 years could be improved by regular telephone calls reminding them not to consume food with a high glycemic index and to undertake regular physical activity.
Methods: All subjects/participants in the intervention (n=117) and control (n=99) groups attented a seminar on healthy eating and physical activity. Women in the intervention group were then called weekly and motivated by using charts that were designed with colors adopted from traffic lights. After 12 weeks of intervention both groups were invited for blood tests. In total, 32 intervention and 17 controls responded to this last visit.
Results: In the intervention group, the numbers of green colour codes for nutrition decreased (from 16.2±4.1 to 15.1±3.7, p=0.03) but the numbers of green colour codes for activity was not changed significantly (from 0.5±0.7 to 0.4±0.7, p=0.25) in the third month. At the third month the fasting blood glucose was higher in the intervention group (117.0±25.8) than in the control group (109.5±9.2) (p=0.69).
Conclusions: In our study, simple regular telephone calls were not sufficient to motivate the study participants to stay in the study and to take advice about dietary and physical activity. Further studies should be designed to evaluate different and new lifestyle change interventions for high risk individuals in Turkey.
Keywords
Impaired fasting glucose, intervention, glycemic index, physical activity
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