足部補正効果の可能性:―快適で温かな着圧ソックスの設計を目指して―  [in Japanese] Possibility to Prevent Swelling of Feet:-To approach a design of comfortable and warm support socks-  [in Japanese]

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Abstract

<p>近年市場に出回る靴下には,快適な履き心地に加え,補正効果のような機能性も加味されるようになった.しかし市販品の中には補正効果を重視するがゆえに,健康面に配慮を欠く製品も少なくない.そこで本研究では,身体に負担が少なく補正効果があり,かつ保温効果のある着圧ソックスの製品開発のための設計指針を提案することを目的とした.被験者は健康な20代前半の成人女性8名であった.足囲と下腿最小囲を同時あるいは単独で圧迫した時に,椅座位で4時間過ごした前後の足部容積と足背の皮膚温を測定した(高温期後半を使用).足部の圧迫は4条件〔条件①:下腿最小囲を"ちょうど良い''(被服圧のmean±SDは12.4±4hPa),条件②:下腿最小囲を"きつい''(28.4±5.2hPa), 条件③:足囲を"きつい''(34.7±6.7hPa),条件④:下腿最小囲と足囲を同時に"きつい''(29.6±3.8hPa)〕であった.外踝下端より先端の足部容積は,コントロールに比べ,①と④の2条件において有意に減少した.外踝下端から足首にかけての足部容積は,条件④において有意に減少した.一方足趾背側の皮膚温は,条件①,②,④において,圧迫前に比べ圧迫後に有意に減少した.このように,足首を足囲と同時にきつく圧迫すると足首部の容積は有意に減少するが,逆に足首より先端の足部の容積が有意に増加し,かつ,足趾の皮膚温は有意に低下した.これらのことから,足首をきついと感じるまで圧迫すべきではないことがわかった.つまり,足趾を温かくかつ,靴内に収まる足部の容積の増加量を少なくするためには,"足囲はきつめ''に,"足首部はちょうど良い''程度の圧迫に留めるべきことがわかった.その時の被服圧の試算から,足首部は15.2hPaまで,土踏まず部で34.7±7.1hPaまでとなった.</p>

<p>The apparel market has begun to supply consumers the socks which bring about not only comfortable wearing feelings but also functional effects such as to restrain a swelling of feet. However, there are many products in disregard for health considerations as aimed solely at the swelling of feet. In the present study, we propose a new design of comfortable and warm support socks, so as to prevent the swelling of feet and to keep tiptoes warm without constricting of the circulation of the blood. Subjects participated were 8 healthy female (21.6±1.1 years old). The measurements were taken in the latter half for a high temperature phase of their menstrual periods. We measured the volume of foot and the skin temperature of the toe, when the ankle and the arch were both or separately constricted. Values obtained were compared with those before and after 4 hours upright sitting. Four constrictive conditions were shown as follows: Condition ① perfect-fitting feelings at the ankle in which the clothing pressure was 12.4±4hPa(mean ± SD), Condition ② tight-fitting feelings at the ankle (28.4±5.2hPa), Condition ③ tight-fitting feelings at the arch (34.7±6.7hPa), and Condition ④ tight-fitting feelings at the ankle and the arch (29.6±3.8hPa). The volume of distal part to the ankle (Region A) decreased in two conditions (Condition ① and ④) in comparison with control experiment, and the volume of ankle (Region B) decreased significantly in Condition ④. On the other hand, the skin temperature of the toe decreased significantly in Condition ①, ②, and ④, as compared with control before compression. In Condition ④, the volume decreased in Region B, but increased in Region A, and the skin temperature of the toe decreased significantly. It is concluded we should not constrict the ankle till tight-fitting feeling. That is, to keep the toe warm and to reduce the swelling in Region A, we must carefully determine the constrictive degrees such as in the perfect-fitting feeling at the ankle and in the tight-fitting feeling at the arch. At this point, the clothing pressures are calculated 15.2hPa at the ankle and 34.7±7.1hPa at the arch.</p>

Journal

  • JOURNAL of the JAPAN RESEARCH ASSOCIATION for TEXTILE END-USES

    JOURNAL of the JAPAN RESEARCH ASSOCIATION for TEXTILE END-USES 52(1), 57-64, 2011

    The Japan Research Association for Textile End-Uses

Codes

  • NII Article ID (NAID)
    130005284419
  • NII NACSIS-CAT ID (NCID)
    AN00131775
  • Text Lang
    JPN
  • ISSN
    0037-2072
  • NDL Article ID
    10980672
  • NDL Source Classification
    ZP33(科学技術--繊維工学・工業)
  • NDL Call No.
    Z17-199
  • Data Source
    NDL  J-STAGE 
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