The purpose of our study was to validate a newly developed breath acetone (BrAce) analyzer. and to explore if BrAce could predict aerobic exercise-related substrate use. Six healthy men ran on a treadmill at 70% of maximal oxygen consumption (VO2max) for 1 h after two days of a low-carbohydrate diet. BrAce and blood ketone (acetoacetate (ACAC). https://thebookmarkid.com/story19600098/the-association-between-pm-and-depression-in-china