单词	high-intensity interval training
释义	high-intensity interval training noun : a form of interval training that alternates very brief periods (such as 20 to 40 seconds) of intense exercise at maximum effort with periods (such as 15 to 30 seconds) of less intense exercise High-intensity interval training has massive benefits, but it can be daunting (hence the intense). Cosmopolitan … scientific studies have shown that exercising exclusively in the anaerobic zones (high-intensity interval training) is the best way to decrease body fat and increase muscle mass. The Billings (Montana) Gazette called also HIIT Word History First Known Use 1984, in the meaning defined above
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