4 exercices debout pour étirer et renforcer votre dos.

I'll show you 4 exercises to stretch and strengthen your back! For everyone! Breathing: Always exhale during the contraction, during the difficult part of the movement. If you have any questions, feel free to contact me. If you like my videos, subscribe to my channel and share them with your friends. Also join me on Facebook: http://bit.ly/2uqq4YG