B48 呼吸曲線から見たAT (Anaerobic Threshold)推定の試み(生体計測・評価II)

概要

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Anaerobic Threshold (AT) is defined to an exercise of the maximum workload when it can be performed without the continuous blood lactate concentration rising while the gradual increasing exercises. AT is widely used as an index of the safe and effective exercise workload in exercise therapy. To determine the AT, the blood lactate measurement with blood sampling or the ventilation measurement is needed. The blood sampling can not be performed except the medical licensed doctor or nurse, the ventilation measurement is needed a very expensive device. The purpose of this study is to make the procedure to estimate the AT using the vital signals such as the breathing curved line (BCL). From the preliminary experiment (Experiment 1) result, the BCL was focused as the index for AT estimation in this study. In experiment 2, the rapid increase of the ventilatory volume (VE) in which AT was made a boundary tried to limit the breath frequency from the point of depending on the frequency of breath.
2010-11-02