皮膚表面乳酸分泌量のリアルタイムモニタリングによる運動負荷の評価

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  • Evaluation of Exercise Intensity by Real-time Skin Lactate Monitoring System
  • ヒフ ヒョウメン ニュウサン ブンピリョウ ノ リアルタイムモニタリング ニ ヨル ウンドウ フカ ノ ヒョウカ

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<p>A sweat lactic acid (LA) monitoring system embedded on an armband for evaluation of exercise intensity was fabricated and real-time LA monitoring of a free-moving subject was conducted for the first time. The LA monitoring system utilizes an electrochemical biosensor which uses redox reaction of lactate oxidase immobilized on a screen-printed carbon graphite electrode. The volunteer wearing the system on the upper arm performed bouldering activity (climbing and 2 min rest alternately) in two different difficulty levels (100 and 150 degrees). Different secretion of LA was confirmed (11µg/cm2 /min for the 150 degrees course and 2µg/cm2 /min for the 110 degrees course). This indicates that the LA levels obtained with our system successfully reflected the metabolic status of the subject.</p>

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