There's no doubt that Kayla Itsines is the original queen of high-intensity interval training. The SWEAT app co-founder's signature 28-minute HIIT-based workout program has built a massive fanbase ...

In a darkened computer lab at Carleton University, Hannah Johnston is getting ready to run the hurdles. The 22-year-old is wearing jeans - not athletic gear - and three small sensors are clipped to ...

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Australian fitness trainer (and burpee queen) Kayla Itsines has officially launched a brand new addition to her fitness empire: BBG Beginner, a precursor to her internationally popular BBG program.