It’s mostly genetic, Jay. In some people the muscles are attached in way that makes them visible, in others the lower portion of the muscle sits too deep.

Aris, I think this article on volume vs. intensity could clarify what Tatianna was getting at:

http://evilcyber.com/fitness/bodybuilding-intensity-volume/

Training frequently is only ok if you are doing it for certain period to lets’ say gain strength or if you are training for a competition. If you training frequently all the time overtime you will get overtrained. Every time we train a muscle we create micro tears, they don’t heal or build unless we rest. Over the years I experimented with different train approaches, and 2 times a week per muscle group got the best results without overtraining but with bigger gains.

Yes acrobats involve their muscles every day in what they do, but they have been doing that for many years and their bodies are use to these daily moves, as far as regular workouts they only train 2 a week and sometimes once a week per certain muscle groups.

Regarding your reply, that I saw after my second post, I was saying that you can train a bodypart frequently and still get results. You can also train once a week and get results too. The statements :“When it comes to training, more is not better, it’s worse”, “You should never work any one muscle group more than 2 days a week.” are at least unprecise and should be avoided or written more carefully, as someone not familiar with fitness may get the wrong impression.

Regarding acrobats I was guessing (falsely probably from what you are saying) that the training of an acrobat would require him/her to engage his abs and core several times a week.

I would also like to add that, despite its weaknesses, your article did have some interesting advice. Plus, that I really liked this article on your website http://www.lovingfit.com/life/my-diary/learning-to-see-the-good/

My husband is a professional acrobat at Cirque Du Soleil. So I know exactly how acrobats train. I was a professional figure skater for 9 years. What were you saying again?

“I don’t think I know a person that doesn’t want to have beautiful and defined six-pack abs. I personally think people who say that they don’t want or like a six-pack are the ones who were never able to achieve it.”
“When it comes to training, more is not better, it’s worse, the only thing it will bring you is overtraining”
“You should never work any one muscle group more than 2 days a week.” (What about the acrobats?)
“Doing the same workout over and over again will bring nothing”

Such statements are often used in similar fitness articles to make an easy impression and cover the lack of knowledge and commitment to honesty and precision (in what is being discussed) by the author.
Moreover, these statements cause several self-contradictions in the article, like the one with the acrobats.

Just my opinion.