In case you need to rev up your #core moves. #sixpackabs #crunch #plank #https://www.t-nation.com/training/superhuman-planks
If you can do anything other than focus on not blacking out while performing a plank, you’re doing it wrong.
The GOLD Standard in Body Composition Measurement
If you can do anything other than focus on not blacking out while performing a plank, you’re doing it wrong.