EVALUATION SYSTEM OF STIFFNESS IN SHOULDERS

摘要

PROBLEM TO BE SOLVED: To evaluate a stiffness in the shoulders objectively and reliably by measuring the circulatory kinetics in the deep inside the muscular tissue around the shoulders. SOLUTION: This evaluation system of a stiffness in the shoulders comprises a deep part circulatory kinetics measuring means 10. The deep part circulatory kinetics measuring means 10 receives the near infrared rays irradiated from the skin surface S around the shoulders to the muscular tissue and scattered in the muscular tissue, and finds the absorbance of the muscular tissue and the tissue oxygen saturation or the total hemoglobin quantity based on the absorbance. It is preferable that the tissue oxygen saturation or the total hemoglobin quantity should be corrected according to the thickness of the subcutaneous fat of a subject.