The effect of obesity on pain and disability in chronic shoulder pain patients

OBJECTIVE: This study aimed to investigate the relationship between chronic shoulder pain and the increase in BMI. METHODS: A prospective, cross-sectional study design was adopted for the study. Two hundred and eighty-five patients with chronic shoulder pain were evaluated for eligibility. A total of 94 patients were excluded from the study. The 191 remaining volunteers filled out a questionnaire (Pain (VAS), Shoulder Pain and Disability Index (SPADI)) and weight, height, C-reactive protein (CRP) results and 1-hour-rate of erythrocyte sedimentation rate (ESR) were measured. The participants were dived into the normal weight, overweight or obese group, considering the obesity classification defined by the World Health Organization (WHO). RESULTS: A statistically significant correlation was found between the increase in BMI and pain (VAS), SPADI (pain, activity and total) and ESR. Although there was no statistically significant difference between the normal weight and overweight groups in all parameters, there was a statistically significant difference between the obese group and other groups. CONCLUSIONS: Shoulder pain may associated with obesity and we recommend the addition of weight control to the treatment of patients with shoulder pain.