運動および食事による呼気中アセトンの変動とその統計学的処理の検討

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  • ウンドウ オヨビ ショクジ ニ ヨル コキ チュウ アセトン ノ ヘンドウ ト ソノ トウケイガクテキ ショリ ノ ケントウ
  • Variation in breath acetone affected by exercise and food ingestion and its statistical analysis

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We conducted exercise experiments to examine the variation in breath acetone caused by exercise and the type of food ingested afterward. Breath acetone increased by exercise; not during the exercise period, but after the exercise period. This time lag between exercise and the increase in breath acetone might be due to delayed ketone production in lipid metabolism or changes in ventilation rate. On the other hand, the effect of meal type on breath acetone showed that carbohydrates contained in the food significantly decreased breath acetone. This might be due to the fact that the increase in breath acetone caused by fasting starvation was reduced by supplementation of carbohydrates. In examining these variations in breath acetone due to exercise and food, we compared methods that focus on the difference from the reference point (amount of increase) and the ratio (concentration ratio), but there was not much difference between these methods in terms of testing for significant differences.

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