Exercise in the Management of Non-Insulin-Dependent Diabetes Mellitus

Authors: Wallberg-Henriksson, H.; Rincon, J.; Zierath, J.R.

Source: Sports Medicine, 1 January 1998, vol. 25, no. 1, pp. 25-35(11)

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Abstract:

The incidence of non-insulin-dependent diabetes mellitus (NIDDM) has increased worldwide during the last decades, despite the development of effective drug therapy and improved clinical diagnoses. NIDDM is one of the major causes of disability and death due to the complications accompanying this disease. For the well-being of the patient, and from a public healthcare perspective, the development of effective intervention strategies is essential in order to reduce the incidence of NIDDM and its resulting complications. For the patient, and for society at large, early intervention programmes are beneficial, especially from a cost-benefit perspective. Physical activity exerts pronounced effects on substrate utilisation and insulin sensitivity, which in turn potentially lowers blood glucose and lipid levels. Exercise training also improves many other physiological and metabolic abnormalities that are associated with NIDDM such as lowering body fat, reducing blood pressure and normalising dyslipoproteinaemia. Clearly, regular physical activity plays an important role in the prevention and treatment of NIDDM.

Since physical activity has been shown in prospective studies to protect against the development of NIDDM, physical training programmes suitable for individuals at risk for NIDDM should be incorporated into the medical care system to a greater extent. One general determinant in a strategy to develop a preventive programme for NIDDM is to establish a testing programme which includes O determinations for individuals who are at risk of developing NIDDM.

Before initiating regular physical training for people with NIDDM, a complete physical examination aimed at identifying any long term complications of diabetes is recommended. All individuals above the age of 35 years should perform an exercise stress test before engaging in an exercise programme which includes moderate to vigorously intense exercise. The stress test will identify individuals with previously undiagnosed ischaemic heart disease and abnormal blood pressure responses. It is important to diagnose proliferative retinopathy, microalbuminuria, peripheral and/or autonomic neuropathy in patients with NIDDM before they participate in an exercise programme. If any diabetic complications are present, the exercise protocol should be modified accordingly.

The exercise programme should consist of moderate intensity aerobic exercise. Resistance training and high intensity exercises should only be performed by individuals without proliferative retinopathy or hypertension. Once enrolled in the exercise programme, the patient must be educated with regard to proper footwear and daily foot inspections. Fluid intake is of great importance when exercising for prolonged periods or in warm and humid environments. With the proper motivation and medical supervision, people with NIDDM can enjoy regular physical exercise as a means of enhancing metabolic control and improving insulin sensitivity.

Keywords: Non-insulin-dependent-diabetes-mellitus, managemen; Non-insulin-dependent-diabetes-mellitus, pathogene; Reviews-on-treatment; Sports-medicine

Document Type: Review Article

Affiliations: Department of Clinical Physiology, Karolinska Hospital, Karolinska Institute, Stockholm, Sweden

Publication date: January 1, 1998

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