This 10 minute HIIT workout is recommended for intermediate to advanced runners. Speeds vary from a jogging pace (5.0 — 7.0) to a sprinting pace (7.5 — 9.5) with 30 seconds of HIIT followed by ...

If you’ve got a set of weights or dumbbells lying around or at the gym, then you can progress to this HIIT circuit with resistance. It’s a 20-minute total body workout that’s perfect for ...