The seven-minute abs workout was put together by fitness trainer Maddie Lymburner, who goes by MadFit on YouTube ... engages all the main muscles in your core in just seven minutes, and all ...
The routine was developed by fitness trainer Maddie Lymburner (known as MadFit on YouTube ... People often use core and abs interchangeably, but there are a few differences.
I tried this 7-minute abs workout that makes you do your reps to the beat of a Daft Punk song and it was a surprisingly good way to stay motivated.