Idiopathic Adhesive Capsulitis, Frozen Shoulder is a condition in which there is a limitation and significant pain at the shoulder and it is increases with shoulder movements. The causes are not clear. The prevalence of this condition is four times higher in diabetic patient compare to the general population.

The relation between frozen shoulder and impaired glucose tolerance remain unclear.

Our hypothesis is that patients with no diabetes and that suffer from frozen shoulder have a higher prevalence of impaired glucose tolerance than the general population age matched.

Inclusion Criteria:

1. age 30-60.
2. previous Xray that eliminates other disease of the shoulder.
3. previous US that eliminates tendon shoulder rupture
4. shoulder movement in all directions, with limitation in the external rotation (at least 50%)

Exclusion Criteria:

1. Diagnosed Diabetes (pregnancy diabetes includes)
2. Taking Hyperglycemic medications (like Steroids)
3. Fracture or operation in the shoulder before the diagnosis of frozen shoulder.

people that were diagnosed with frozen shoulder at the last three years and are not diabetic.