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HIIT-class-in-Hong-Kong

What is a HIIT workout and What makes it so effective?

  HIIT is an acronym for high-intensity interval training, known as high-intensity intermittent exercise or spring interval training. A form of interval training with periods of high-intensity exercise and low-intensity recovery periods. High-intensity interval training sessions entail four periods. In the first period, you perform warm-up...

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