Effects of Nordic walking on health-related quality of life in overweight individuals with Type2 diabetes mellitus, impaired or normal glucose tolerance

Abstract

Aims: To assess the effects of 4months of increased physical activity on health-related quality of life in overweight individuals with Type2 diabetes mellitus, normal or impaired glucose tolerance. Methods We included 212 individuals without severe physical or cardiovascular impairments aged 61 (57-64) years, with BMI of 29 (27.5-32) kg/m 2. Numbers are median (25th-75th percentile). Subjects were stratified based on normal glucose tolerance (n=128), impaired glucose tolerance (n=34) or Type2 diabetes mellitus (n=50). They were randomized into either a control group (n=125), who maintained unaltered habitual lifestyle, or an exercise intervention group (n=87), who were directed to engage in Nordic walking with walking poles, 5h per week over 4months. Self-reported physical activity and health-related quality of life was assessed at the time of inclusion and after 4months. Results Baseline health-related quality of life of this study cohort was similar to, or better than, an age- and sex-matched Swedish population sample, for 12 of 13 scales. Quality of sleep and BMI were improved for participants with normal glucose tolerance after 4months of Nordic walking, with little or no musculoskeletal pain as compared with control subjects. No correlation was evident between improved quality of sleep and improved BMI. Conclusions Quality of sleep improved in the group with normal glucose tolerance following 4months of Nordic walking. BMI reduction did not account for this improvement. Nordic walking can be introduced in a primary health care setting as a low-cost mode of exercise that promotes weight loss and improved health satisfaction. © 2011 The Authors. Diabetic Medicine © 2011 Diabetes UK.