Natacha Oceane
British biophysicist, sprinter, and Iron Man Natacha Oceane uses her Youtube channel to share videos approved by a GB Olympic athlete. One of her most recent, a 20-minute no-equipment Hiit workout is also no-impact and makes no noise, making it ideal for those who are worried about disturbing the neighbours. All you need is the space of a mat, and Natacha has included clear, timed intervals to make it easy to follow at home.
(Related: Keep Fit as You Work From Home: These are the Best Fitness Workouts To Try)