Was once told working out the same muscle on different exercises was wrong?

WarningTheHermit

At one point in time I was told that working out the same muscle on different exercises was wrong / not necessary. But then recently while watching youtube videos I see people doing several different exercises that hit the same muscles. Can some people who understand this better than me gimme some reasoning as to either side?
TLDR of the arguments I've heard so far were

Don't - There's no point working a muscle you've already worked it won't benefit you at all.
Do - It can hit different parts of the same muscle differently doing different exercises.

Either of those could be BS, just trying to give context of what I've seen.

Chieflrg

1. Muscles require "X" amount of stimulas in a certain amount of time. So sometimes programs require more stimulas than one lift.

2. A certain lift hit one group of muscles it might not hit all the same. Such as deadlifting and squats. Both hit back, quads, and posterior chain but at a different ratio for each group.

3. 99% of youtube lifting videos have terrible content and no basis behind good programming. They are simply out to make a buck and gain subscribers who buy into "Do this and you'll get these results.".

WarningTheHermit

Chieflrg wrote: »

1.
3. 99% of youtube lifting videos have terrible content and no basis behind good programming. They are simply out to make a buck and gain subscribers who buy into "Do this and you'll get these results.".

I guess I need to be more specific, I wasn't watching " do this program" type of videos. more so people talking / vlogging, while they happen to be lifting. not an instructional thing. Was more observations I've made over the last few weeks.

lorrpb

Most so-called muscles are actually comprised of multiple muscles: quads (4 muscles, hence the name quad), triceps, biceps, glutes, delta, etc. So yes, some exercises, variations work one part of group more than others. For example, there are front and side delt raises that work front and middle delts. Different types of curls works different parts of the bicep. Etc.

Hopefully one of our knowledgeable trainers will be able to shed more light.

AnnPT77

I think maybe a good way to handle this would to be to take a step back, and look at the big picture. What we really want (or ought to want ) is a well-designed lifting program, designed by someone who knows what they're doing, in order to get a well-rounded workout that helps us progress.

There's a whole thread about that here, maybe it will provide some insights:

http://community.myfitnesspal.com/en/discussion/10332083/which-lifting-program-is-the-best-for-you

VUA21

I honestly cannot think of any exercise that works out a singular muscle. Even a preacher curl works out grip strength and forearms a bit. That being said, I can see how over working muscles can be bad or only focusing on one area every day. Maybe they meant that you should change up some of the lifts for certain groups and not stick to a single lift that primarily targets a particular muscle.