Planes of motion and chest training. Thoughts?

[Theguyoverthere]

I was watching a YouTube video regarding chest training and this guy was mentioning how planes of motion have an impact on it. I also noticed some weight trainers don't feel the same way though. What are your thoughts?

For those who don't know what I mean about it, it's in regards to the direction a person is pressing in when they are doing a chest/bench press having an impact on stimulating certain areas of the chest.

[sweatgirl]

There are three planes of motions. for more info check out acefitness.com I could try and explain it, but to some people it maybe confusing so to get a better understanding of it checkout acefitness.com ACE is a name of a personal training certification organization so they explain it in complete detail. I actually have one of my certification through them so they are very well known.