Dr. J. B. Eisinger and his team in Toulon, France produced research indicating that there may be a noninvasive, simple and cheap way to test for fibromyalgia.
Using a simple blood pressure apparatus, they have found a correlation with sensitivity to cuff pressure and fibromyalgia tender points that may be specific to fibromyalgia. The systolic blood pressure is a precise measure.
The sensitivity may be relative to the number of tender points. This process is called tensiometer induced myalgia (TIM).
Their results indicate that greater sensitivity to the TIM is found in patients with 11 or more tender points. (1)
In a study performed in 61 patients with diffuse muscle pain, researchers found that the mean value of tension induced pain with a blood pressure cuff is significantly decreased in patients with more than 10 of 18 tender points, but unchanged in 40 patients with less than 10. The tension induced pain is correlated with tender point number, and not with spontaneous pain from other causes. (2)
(1) Eisinger J, Plantamura A, Camensuli Y, Ayavou T, Zakarian H. Provoked pain in fibromyalgia syndrome [FMS] : evaluation and correlations. Journal of Musculoskeletal Pain 9-5: 110, 2001.
(2) Eisinger J. Seven steps to fibromyalgia. J Musculoskeletal Pain 9-3: 115-122, 2001.