Substituting Exercises in a Workout Routine

Video Channel
Please help us to find bad videos. Broken or unappropriated video content?
"I want to do 531 but can I substitute leg curls for stiff leg deadlifts?"
I get a lot of questions from people in regards to changing a popular workout routine they'd like to do. As part of that I just wanted to give my opinion on why this might not always be a great idea.
PHUL Routine:
Facebook:
Instagram:
Twitter:
Fitocracy:
Citadel Nutrition:
/
Mdp.lt is not the owner of this text/video/image/photo content, the real source of content is Youtube.com and user declared in this page publication as Youtube.com user, if you have any question about video removal, what was shared by open community, please contact Youtube.com directly or report bad/not working video links directly to video owner on Youtube.com. Removed video from Youtube.com will also be removed from here.