Media Summary: 1 minute interval timer with 30 second rest Hi all, I made this for doing planks. I'm not a professional, please consult your local physician when doing any exercises.
1 Minute Interval Timer With 30 Second Rest - Detailed Analysis & Overview
1 minute interval timer with 30 second rest Hi all, I made this for doing planks. I'm not a professional, please consult your local physician when doing any exercises.