Importance of Diet and Exercise in Diabetes Prevention

Understanding Type 2 Diabetes

Type 2 diabetes arises when the hormone insulin is unable to effectively manage glucose movement into cells. Consequently, glucose accumulates in the bloodstream, leading to potential damage to blood vessels and increasing the risk of serious health issues such as heart disease, nerve damage, circulation problems, amputation, blindness, and kidney disease.

The Role of Physical Activity

Engaging in physical activity enhances a cell’s sensitivity to insulin and helps lower blood sugar levels. Muscles primarily use glucose as energy during contractions, allowing them to draw glucose into cells without the need for insulin. Therefore, increased muscle mass and activity can significantly reduce blood glucose levels. Additionally, regular exercise contributes to effective weight management and stress relief.

Recent Research Findings

A recent study published in the International Journal of Public Health by researchers from Greece examined the impact of physical activity on the incidence of diabetes over a decade. The study analyzed comprehensive medical data from 3,042 adults aged 18 to 89, including demographic details, health information, family history, dietary habits, smoking and drinking behaviors, and levels of physical activity. Follow-up data was collected ten years later from 2,583 participants.

Study Results

The findings revealed that 191 participants (12.9%, comprising 97 men and 94 women) had developed diabetes. Those who engaged in very low or low levels of physical activity (less than 150 minutes per week) exhibited larger waist circumferences and higher triglyceride levels compared to individuals participating in moderate physical activity (approximately 300-600 minutes per week). Interestingly, engaging in high levels of physical activity (over 600 minutes per week) did not provide additional protective benefits against diabetes.

Biomarkers and Their Implications

The research team noted that two biomarkers associated with oxidative stress and inflammation were lowest among individuals performing moderate physical activity. This observation led the researchers to hypothesize that the mechanisms through which physical activity reduces oxidative stress may also contribute to a lower risk of diabetes.

Conclusion

These findings underscore the critical role of moderate physical activity in diabetes prevention and highlight the importance of maintaining an active lifestyle to enhance overall health.

Written by Debra A. Kellen, PhD

Reference: Koloverou, E., Tambalis, K., Panagiotakos, D. B., Georgousopoulou, E., Chrysohoou, C., Skoumas, I., … & ATTICA study group. (2017). Moderate physical activity reduces 10-year diabetes incidence: the mediating role of oxidative stress biomarkers. International Journal of Public Health, 1-9. doi: 10.1007/s00038–017–1052-8