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Background: The pre-diabetes (PD) and type 2 diabetes (T2D) prevalence has reached epidemic populations worldwide. Now these conditions originating as a serious health issue. Pre-diabetes is the first stage and infers a high risk of developing T2D. Middle age populations can benefit from increased physical activity, especially walking. Supervise pedometer- based exercise training has been shown to be effective at improving cardio-respiratory fitness and glycemic control in persons at high risk with T2D. However, community-based diabetes prevention programs more commonly incorporate less structured programming, promoting exercise at community. The objective of this study were to evaluated blood sugar control and cardio-respiratory fitness of supervised- brisk walking (45-60 min/day, 5 days/week) in overweight adults with impaired fasting glucose (IFG). Methods. This study was a quasi-experimental designed. Sixty participants (9 men, 51 women; age 35-59 years) were assigned to intervention group (n= 28, 4 males, minimum 30 minutes of daily brisk walking on 5 days or most day of the week) and to a control group (n= 28, 5 males, no changes in lifestyles). Anthropometric, body mass index, blood pressure (BP), blood glucose level, and maximal oxygen estimation were measured at baseline and post intervention. Results. After 12 weeks , there were no changed in body mass index and waist circumference . However, at the end of intervention, fasting blood sugar M= 104.42, SD=6.24 , t(-6.47), p< 0.001);glycated hemoglobin (M= 4.97, SD=0.63 , t(-5. 27), p < 0.001) ;VO2 max (M= 46.05, SD=5.62 , t(5.68), p < 0.001 and blood pressure (systolic pressure, M=113.15 , SD=10.49 , t (-2.46), p value, p < 0.05; diastolic pressure; M= 74.38 SD =8.12, t (-2.33), p < 0.05) and daily step counts M=6134.75 SD=1260.94 , t(14.84), p < 0.001) were significantly improved in the walking group when compared to the control group. Four walkers dropped out.
Conclusions. This study suggest that brisk walking program in a community setting is successfully improved blood sugar; cardio-respiratory fitness and blood pressure among individuals with impaired fasting glucose.
Keywords: Supervised exercise training, cardio-respiratory fitness, moderate physical activity
* Corresponding author: Department of Community Health Nursing, Boromarajonani College of Nursing Udonthani.
2 Khon Kaen University.
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