健康な女性における汗乳酸センサーを用いた有酸素性閾値の評価
Tomonori Sawada1, Hiroki Okawara1, Shintaro Narushima1
1Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan.
International journal of sports medicine
|January 12, 2026
まとめ
ウェアラブル汗乳酸センサーは、女性の有酸素性閾値を評価できる。しかし、発汗の遅延により、汗乳酸閾値が換気閾値に遅れることがある。
科学分野:
- 運動生理学
- 生体医工学
背景:
- 有酸素性閾値の評価は、運動処方に不可欠である。
- 汗乳酸センサーは、運動強度をモニタリングするための非侵襲的な方法を提供する。
- 特に発汗率の低い女性における妥当性検証が必要である。
研究 の 目的:
- 健康な女性における汗乳酸センサーを用いた有酸素性閾値評価の妥当性を検証する。
- 汗乳酸閾値と換気閾値の関係を調査する。
- この関係に対する発汗ダイナミクスの影響を調べる。
主な方法:
- 健康な女性16名が、呼吸ガス分析を用いた運動負荷試験を実施した。
- ウェアラブル乳酸センサーが汗乳酸レベルをモニタリングした。
- 換気カプセルが発汗率を測定した。
- 相関および乖離分析が実施された。
主要な成果:
- センサーを用いて全ての参加者で汗乳酸閾値が検出可能であった。
- 汗乳酸閾値と換気閾値の間には有意な相関(r=0.769)が見られた。
- 汗乳酸閾値は換気閾値と比較して有意に遅延した。
- 発汗の遅延発現が閾値間の乖離を予測した(r=0.873)。
結論:
- 健康な女性における汗乳酸センサーを用いた有酸素性閾値評価は可能である。
- 発汗の遅延発現が、汗乳酸閾値の遅延の主な要因である。
- 個々の発汗パターンを考慮したセンサー使用のさらなる研究が期待される。
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