News
Fitness Short on time? This 30-minute standing HIIT class will boost your metabolism and build strength . ... so most of the exercises are supplementary and relatively safe/easy to learn on your own.
The original method requires a 30-minute timer switching between 3 minutes at low intensity (around 4/10 RPE) and 3 minutes at high intensity (7/10 effort, roughly).
Some results have been hidden because they may be inaccessible to you
Show inaccessible results