Ballet-coaching and aerobics doesn’t appear to be a all-natural pairing, but this significant-Power video proves it’s possible, and the result is often a strong exercise session. Kym Perfetto Although her Instagram feed is full of badass biking shots, biking is just some of NASM-certified coach Kym Perfetto's YouTube articles. (Though, https://www.youtube.com/watch?v=1bT70_4OLaU