The purpose of this study is to examine clothes pressure of the functional hosiery and effect on muscle fatigue through electromyogram measurement and questionnaires. Wearing the functional hosiery of which the clothes pressure differs, several healthy students carried out flexion of the ankle joint and motion of the toe. At this time, the electromyogram of anterior tibial muscle, gastrocnemius muscle, abductor hallucis muscle were measured, then RMS (Root-Mean-Square) and MDF (Median Frequency) which is the muscle fatigue index was calculated. In addition, the questionnaire was carried out after the motion task. As a result, it became clear that the clothes pressure of the hosiery which relieves fatigue were 15-30gf/cm² in lower leg, 40-70gf/cm² in foot. Clothes pressure which did not hurt the comfort was included within these. Moderate clothes pressure of the functional hosiery seems to affect in muscle contraction and muscle blood flow. This was assumed to be the reason why muscle fatigue is reduced.

DESCENTE SPORTS SCIENCE Vol.31/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE