
The plank looks pretty straight-forward, but when done correctly, your core (and entire body) should be on fire.
The post How to Plank appeared first on Under Armour.
August 18th, 2018
author 
The plank looks pretty straight-forward, but when done correctly, your core (and entire body) should be on fire.
The post How to Plank appeared first on Under Armour.
