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What are your thoughts about the study bellow? 
  
Should people incorporate a longer tempo for the eccetric phase?
 
Repeated Training Reduces Anabolic Hormone Response
 
 
Eccentric exercise (lengthening contractions) is more effective than concentric exercise (shortening contractions) for promoting muscle growth. Muscles grow, in part, in response to muscle damage. Muscles exert more force eccentrically than concentrically, which also causes more tissue damage. Muscles adapt quickly to high-intensity muscle contractions that occur during weight training. Even a single workout triggers cellular adaptations.
 
 
A Florida State University study showed that a concentric muscle contraction workout reduced the anabolic effect of an eccentric workout completed a week later. The study showed that skeletal muscle adapts rapidly to even a single workout. We need more studies to help us understand how to maximize the anabolic response to long-term bodybuilding training. (International Journal Of Sports Medicine 31: 95-100, 2010)
by Robbie Durand musculardevelopment.com
 

 
 
Eccentric exercise (lengthening contractions) is more effective than concentric exercise (shortening contractions) for promoting muscle growth. Muscles grow, in part, in response to muscle damage. Muscles exert more force eccentrically than concentrically, which also causes more tissue damage. Muscles adapt quickly to high-intensity muscle contractions that occur during weight training. Even a single workout triggers cellular adaptations.
 
 
A Florida State University study showed that a concentric muscle contraction workout reduced the anabolic effect of an eccentric workout completed a week later. The study showed that skeletal muscle adapts rapidly to even a single workout. We need more studies to help us understand how to maximize the anabolic response to long-term bodybuilding training. (International Journal Of Sports Medicine 31: 95-100, 2010)
by Robbie Durand musculardevelopment.com
 
 
I am going to choose to NOT read the linked article, because of course its bullshit.  One can prove anything one wants to in a university setting using untrained 20 year olds.  Do a little research on how actual athletes in teh real world train, and you will find that it is concentric based, and not because some coach read a paper, but based on years and years and years of experience.  A quote comes to mind…

“In theory, theory and practice are equal.  In practice, they are not.”

other studies have shown that eccentric exercise reduces insulin sensitivity too (not a good thing).

Asp S, Daugaard JR, Kristiansen S, Kiens B, Richter EA. Eccentric
exercise decreases maximal insulin action in humans: muscle and systemic
effects. J Physiol. 1996 Aug 1;494 ( Pt 3):891-8.

what would you say to that?

 

  
I am going to choose to NOT read the linked article, because of course its bullshit.  One can prove anything one wants to in a university setting using untrained 20 year olds.  Do a little research on how actual athletes in teh real world train, and you will find that it is concentric based, and not because some coach read a paper, but based on years and years and years of experience.  A quote comes to mind…
“In theory, theory and practice are equal.  In practice, they are not.”[/QUOTE]
 
 
I see your point about not trusting university studies.  Actually, i am hesitant about most studies i read.  There are so many critical aspects to look at with studies; who funded it, background of study group, age, gender, ethnicity, financial background, number of participants, mental and physical health, proper timing ect .
 
 
However, I did hear that eccentric training helped muscle mass and strength gains… Once again, you are being one sided… What if eccentric training is more beneficial for one person then the other?  There is not a one size fits all with training and dieting.
 
What is your reasoning against this style of training…? I wouldn’t recommend doing this all the time however I like to mix it into my workouts from time to time…
 

insulin sensitivity too (not a good thing).
Asp S, Daugaard JR, Kristiansen S, Kiens B, Richter EA. Eccentric
exercise decreases maximal insulin action in humans: muscle and systemic
effects. J Physiol. 1996 Aug 1;494 ( Pt 3):891-8.
what would you say to that? 
 
 
 
I think its just another silly study!! can you send me a link to that study.. 
 
I cant see how eccentric exercise reduces insulin sensitivity. bogus!
 

Sorry Glenn but I have to disagree with the statement that real world training is total concentric training. Find a Powerlifting club that does not incorpoorate some form of eccentric training weither they know it or not. I actually read in a previouse discussion where you actually had people doing band work is this not a form of over speed eccentrics. I will go ahead and paste a quote from Louie Simmons on such exercises.”overspeed eccentric effect on the eccentric phase,
increasing kinetic energy in the stretch reflex.

Thanks
Butch

 

Butch,

Yes, I am a fan of the bands.  And maybe one of the reasons they work so well is the effect on the  eccentric.  But, the title of this research indicates they compared eccentric to concentric.  Think about that.  Compared the two things.

All reasonable training will contain both concentric and eccentric contractions.  For some muscles like the spinal erectors, much of the work will be isometric.

I know you use WSB.  I know you trust Louie…  why do you think that the sled is so widely used at Westside?

Here you go contradicting yourself again… You first stated that real world athletes train concentric based.
 
Know you are saying that “all reasonable training will contain both concentric and eccentric contractions”…
 
You also said… ….“Yes, I am a fan of the bands.  And maybe one of the reasons they work so well is the effect on the eccentric”
 
 
Therefore you DO use eccentric training for your ELITE athletes and there are benefits of training eccentrically…  Of course your workouts should not be dedicated entirely too eccentric training but it is a good mix… That was my original point.

 

Come on, there is no contradiction there.  Of course most training is concentric based, because most athletic events are concentric based.

But obviously training is going to be a mix.

Now as to the bands.  I cant tell you exactly why they work.  No one can.  Most that can be done is to theorize.  The fact that they make the body work harder on the eccentric phase is one of the theories as to why they work.

there is no contradiction there.  Hell even if it were a probven fact that bands work by emphasising the eccentric, and I loved them and used them, all the while maintaining that most sports and sports training is concentric baseed, well then there would still be no contradiction.

  insulin sensitivity too (not a good thing).
Asp S, Daugaard JR, Kristiansen S, Kiens B, Richter EA. Eccentric
exercise decreases maximal insulin action in humans: muscle and systemic
effects. J Physiol. 1996 Aug 1;494 ( Pt 3):891-8.
what would you say to that? 
 
 
 
I think its just another silly study!! can you send me a link to that study.. 
 
I cant see how eccentric exercise reduces insulin sensitivity. bogus!
 [/QUOTE]

here’s the link to the study if that helps you at all.

http://www.ncbi.nlm.nih.gov/pubmed/8865083

any thoughts?