eccentric portion for bodybuilding

Hello guys.
What is your opinion on slow eccentrics.

I ve read this article on T-nation

http://www.t-nation.com/free_online_article/sports_body_training_perform...

and it states

Farthing and Chilibeck performed a study that compared hypertrophy between slow and fast eccentric contractions. They demonstrated that fast eccentric contractions result in more hypertrophy than slow eccentric contractions. (2) That's one big nail in the "slow eccentrics" coffin!

On the other hand Poliquin and King promote slow eccentrics

and Dr Squat wrote

http://fitnesseducation.blogspot.com/2007/03/your-muscles-strength-build...

The Hypertrophy Process

The most interesting element of Dr. Connelly's theory is that, upon damaging the cells' membranes through eccentric contraction while the cell is in a "fatigued" state, certain protein growth factors are liberated in the interstitial spaces surrounding the injured cell. Called FGF (Fibroblast Growth Factor -- "fibroblasts are newly-forming cells), IGF-I (Insulin-like Growth Factor type one) and IGF-II (Insulin-like Growth factor type two).
These growth factors are known to 1) stimulate the development of non-contractile satellite cells, and 2) cause the conversion of satellite cells to become part of the neighboring contractile cell in order to give it greater protection from stress. This, Connelly reasons, is what causes hypertrophy of the contractile cell.
This is a revolutionary concept, folks! But remember this, and remember it well! It ONLY applies to our brothers and sisters in the bodybuilding world! Powerlifters are not interested in getting bigger muscles in this fashion

I am not a fan of Pavel or Waterbury, but could this research be true?

When i go for slower eccentrics i get more TUT but i will be forced to lower the load.

Wouldn't it be better to do your lets say 10 reps with explosive concentrics, and fast controlled eccentrics and then use a very slow eccentric on the last rep? that would give the best of both worlds right? higher TUT, lots of eccentric stress and higher weights...

Farthing and Chilibeck

Farthing and Chilibeck performed a study that compared hypertrophy between slow and fast eccentric contractions. They demonstrated that fast eccentric contractions result in more hypertrophy than slow eccentric contractions. (2) That's one big nail in the "slow eccentrics" coffin!

any opinions?

DrSquat's picture

I need to understand the

I need to understand the rationale...

thank you for the link.. i

thank you for the link..
i wonder where waterbury got that research from
i actually hoped it was a good excuse to do fast reps because i really dislike training slower

Todd Wilson's picture

I've discussed this a lot on

I've discussed this a lot on here, so I won't give another dissertation on it, but.....

It sounds as if you are looking for what rep tempo is best. None are. If you've never manipulated rep tempo in your training, I strongly suggest you give it a whirl.

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