on November 10th, 2014 No Comments
More than 29 million adults and children in the United States are living with diabetes, and it’s estimated (.pdf) that an additional 86 million Americans ages 20 years or older have prediabetes, putting them at increased risk of developing the disease.
The good news is that lifestyle modifications can be an effective method for managing or preventing diabetes. In recognition of National Diabetes Month, I reached out to Baldeep Singh, MD, a clinical professor at Stanford who focuses on chronic disease management, to discuss the importance of regular physical activity for patients diagnosed with diabetes and those working to limit their risk of developing the disease. This Thursday, Singh will explore the topic more in-depth during a Stanford Health Library event at the Arrillaga Alumni Center on campus, where attendees can also have their blood glucose checked. The discussion will also be webcasted for those unable to attend in person.
In this Q&A, Singh highlights scientific evidence showing that staying active has a beneficial effect on insulin sensitivity, and discusses the potential of exercise, in combination with other behavioral changes, to induce partial, or full, remission of type 2 diabetes.
How does regularly exercising help in preventing or delaying type 2 diabetes?
The benefit of exercise in preventing diabetes has been demonstrated in several studies. A meta-analysis of 10 studies of physical activity and type 2 diabetes reported a lower risk of developing diabetes with regular moderate physical activity, including brisk walking, compared with being sedentary
Additionally, in a subsequent prospective cohort study in men, either weight training or aerobic exercise for at least 150 minutes per week was associated with a lower risk of developing type 2 diabetes compared to those with a control group who did no physical activity.
Why is engaging in physical activity important in managing type 2 diabetes?
In patients with type 2 diabetes, studies show that short-term exercise training improves insulin sensitivity just as it does in non-diabetics. In patients with type 2 diabetes treated with medication, exercise tends to lower blood glucose concentrations.
Exercise improves glycemic control in patients with type 2 diabetes, as illustrated by the findings of several meta-analyses of trials examining the effect of exercise on glycemic control in patients with type 2 diabetes. Exercise training reduces glycosylated hemoglobin (A1C) values by approximately 0.5 to 0.7 percentage points compared with control participants.