About this trial
The goal of this clinical trial is to achieve diabetes type 2 (DM2) remission using intensive lifestyle intervention.
The main questions it aims to answer are:
* Does intensive lifestyle intervention (including Mediterranean diet with a caloric deficit, daily physical activity, increase in stress resilience and group support) lead to DM2 remission (HbA1c\<6.5%, without medications) * Can intensive lifestyle intervention (including Mediterranean diet with a caloric deficit, daily physical activity, increase in stress resilience and group support) result to weight loss of \>15 kg * Does intensive lifestyle intervention result in any side effects (secondary outcome)
Researchers will compare intensive lifestyle intervention to the usual clinical care (control group).
Participants in the experimental group will:
* eat Mediterranean diet with a caloric deficit * perform daily physical activity * increase their stress resilience with psychosocial support of the group * enroll weekly in individual and group counseling and workshops for 6 months, following with 1.5 years of follow-up
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
type 2 diabetes diagnosis
incident cases or diagnosed not more than 7 years ago
body mass index of 27-45 kg/m²
Disqualifiers
mobility restriction
use of mobility aids
insulin therapy
HbA1c >12%
Trial design
Parallel
Treatments tested in this trial
Mediterranean diet
BehavioralExclusion of highly processed food products and beverages, introduction of a diet according to the modern pyramid of the Mediterranean diet (44). Subjects will be recommended to reduce as much as possible the use of plastic food and drinks containers. The nutritionist will create personalized nutritional recommendation, with a moderate reduction in caloric intake (quantified by calculating the basal metabolism and ideal body mass of each subject, and the whole day's energy consumption). The goal of this part of the intervention is to achieve a weight loss of at least 0.5 kg every week, by reducing caloric intake by 300-500 kcal. The nutritionist will create sample menus throughout the day, for 30 days, to make it easier for subjects to follow this part of the intervention. In addition, each subject of the experimental group will receive a total of six liters of extra virgin olive oil (one liter per month for 6 months).
Physical activity intervention
BehavioralParticipants will be involved in aerobic activities expertly guided by kinesiologist (Nordic walking) every day for 45-60 minutes, spent in nature or indoors in case of unfavorable weather. Along with Nordic walking, participants will be involved in organized muscle strength and endurance exercises twice a week for 60 minutes with the use of external loads (elastic bands, small weights), and mobility, balance and coordination will also be developed. All training programs will be conducted by trained kinesiologists who will instruct, monitor and correct participants in order to perform the exercises correctly and get the maximum effect on the targeted motor skills. Nordic walking, resistance exercise, and a combination of aerobic activity and resistance exercise have been shown to be effective in improving cardiometabolic parameters, physical fitness, and quality of life in people with DM2.
Psychological intervention
BehavioralSupport group meetings discussing mental health topics and encouraging change through the adoption of healthy lifestyle habits. Psycho-educational component, stimulating group environment for sharing personal experiences, motivation and becoming aware of emotions and resistance. The specific topics of individual group meetings will be: stress and stress management, relaxation techniques (breathing techniques, autogenic training, progressive muscle relaxation techniques and guided fantasies), emotion management (recognition of negative beliefs and thought patterns, awareness and management of emotional reactions), interpersonal skills in the function of self-care (awareness and communication of one's own needs through assertive communication techniques), self-care through the adoption of healthy habits (motivation, adoption of habits and planning), conscious eating and the alike, creating a list of SMART goals (45).
Treatment groups
Trial outcomes
Primary outcomes
Remission of diabetes mellitus type 2
Change of HbA1c to \<6.5%, without the use of blood glucose lowering therapy for the past 3 months
Secondary outcomes
Weight loss
Loss of body weight of ≥15 kg
Adverse events
Any adverse event associated with each of the interventions (nutritional, physical activity, psychological)
Other outcomes
Additional benefits
change in arterial function measured as pulse wave velocity (PWV)
Additional benefits
change in Advanced Glycation End Products measured using AGE Reader mu (DiagnOptics)
Sponsors and contacts
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University of Split, School of Medicine
Lead sponsor
Croatian Science Foundation
Collaborator