From london_fitness_guy (https://www.instagram.com/p/DKwlRoeo-O5/). This is a Tabata-style high-intensity interval training (HIIT), so it's 40 seconds of work followed by 20 seconds of rest.
From london_fitness_guy (https://www.instagram.com/p/DKwlRoeo-O5/). This is a Tabata-style high-intensity interval training (HIIT), so it's 40 seconds of work followed by 20 seconds of rest.