Though type 2 diabetes is an inherited disease, habits can affect the risk of getting it. Obesity due to fatty and high-calorie foods, often in combination with limited activity, increases the risk considerably.
A new study at NTNU (The Norwegian University of Science and Technology) and St. Olav's Hospital Centre of Obesity has followed people in the risk group for five years. Participants were offered organized physical activity and courses on diet.
"We're seeing that follow-up from the health services in Norwegian municipalities over a long period of time can help reduce the risk of developing diabetes 2 and improve people's health," says researcher Ingrid Sordal Folling at NTNU's Department of Health and Nursing.
Folling works in the Centre for Obesity Research, Surgical Clinic at St. Olavs Hospital in Trondheim. The study results have been published in the British Medical Journal.
Taking action helps
Worldwide, 350 million people have type 2 diabetes. Approximately 270 000 people in Norway have the disease, a number that has almost doubled in the last 20 years. An additional ten per cent of the population is at risk for developing type 2 diabetes.
Affected individuals either do not produce enough insulin, or their cells resist the hormone, called insulin resistance. This affects blood sugar levels and disrupts the metabolism of nutrients such as carbohydrates, fats and proteins in the body.
However, it often helps to take action, the new research shows. Changes in habits can be beneficial - if you actually implement them. That's where long-term follow-up is needed.
"We're seeing that follow-up from the health services in Norwegian municipalities over a long period of time can help reduce the risk of developing diabetes 2 and improve people's health," says researcher Ingrid Sordal Folling at NTNU's Department of Health and Nursing. Folling works in the Centre for Obesity Research, Surgical Clinic at St. Olavs Hospital in Trondheim. The study results have been published in the British Medical Journal. Taking action helps
"We're seeing that follow-up from the health services in Norwegian municipalities over a long period of time can help reduce the risk of developing diabetes 2 and improve people's health," says researcher Ingrid Sordal Folling at NTNU's Department of Health and Nursing.
Folling works in the Centre for Obesity Research, Surgical Clinic at St. Olavs Hospital in Trondheim. The study results have been published in the British Medical Journal.
Taking action helps
All participants in the study had a BMI of 25 or higher. This corresponds to being overweight or more. The study started with 189 people, and about 70 per cent completed the programme. Many of them had very good results.
"The highest risk group at the start included 65 people. Of this group, more than 40 per cent, or 27 people, reduced their risk to the medium during the five years," says Folling.
Nine people already had symptoms of type 2 diabetes when they started, and six of them reduced their symptoms.
Other research has shown that simple lifestyle advice from people in the health care system does not reduce the risk of developing type 2 diabetes. However, the participants in this study were offered physical activity and dietary courses for one year and were followed up with measurements over a long period, in the case of this study for a full five years. Having a long-term commitment appears to yield much better results.
Youngest and heaviest participants dropped out
Fifty-four of the participants dropped out during the five years, corresponding to just over 30 per cent. We found that many of the youngest participants and those with the highest BMI, waist circumference and weight measurement were among the dropouts.
The researchers do not know exactly why they chose not to carry on. This may have socio-economic reasons since those who did not attend full time had less education and fewer were employed. Another possible explanation is that the training and courses were scheduled during the day, which might have made it more difficult for the younger ones to participate.
Previous experience shows that people who most need the offerings to change their habits are more often the ones who do not take them up, or who quit the programme.
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