Part 4 - Why does training with repetitions wipe out the fast twitch response in a muscle?
This is the 4th of 8 in a series about maximizing speed and quickness in your specific sport.
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Remember, for optimum speed there are two things that need to happen:
First, the muscle’s memory needs to be ‘programmed’ so that the muscle contracts instinctively to the exact distance and with the same motion as the athletic skill.
Second, the speed at which the muscles contract needs to be maximized by fast twitch muscle fibers.
Have you ever tried to throw a baseball, swing a bat or golf club or kick a football after lifting weights or doing plyometric exercises?
Immediately after doing strength training these athletic skills cannot be done very effectively. Why? Because all of these athletic skills require that your muscles have a specific target distance to contract to very quickly.
However, the fast twitch response within your muscles gets wiped-out or stripped away with strength training. This happens because the repetitions in weight lifting causes your muscle’s memory to become ‘confused’ in regards to having an exact distance to contract to when performing an athletic skill.
This is what’s known as ‘dumbing-down’ your muscles and is why you’ll always feel tired, heavy and sluggish (i.e., slow) following weight training or plyometric training.
Here is an example: Have you ever tried to comb your hair after a weight lifting session? It’s a weird sensation like your muscles have lost their ability to make instinctive movements on their own.
Repetitions with weights create multiple (even an infinite number of) stopping points within the range of motion, whereas muscle speed is optimal when the stopping point is well defined.
Training programs that cause the muscle to make repetitive movements are not capable of conditioning the muscle to respond with the lightening like speed that it is capable of.
With weight training or even plyometrics training, the slow twitch muscle fibers will become stronger to do more repetitions and to move heavier loads, however, with regards to speed
* The fast twitch fibers, for the purposes of speed and quickness, are basically ignored, and
* The fast twitch response programmed into your muscle memory gets wiped out.
When your ‘muscle memory’ gets wiped-out, your muscles need to ‘rethink’ how they will perform a task. Until the memory is reestablished, movements will be slower and more awkward.
Now, there may appear to be an increase of speed associated with many types of training but do not confuse an increase in muscle contraction speed with an increase in coordination you may develop in performing certain plyometric exercises.
Certainly better coordination will help you perform an athletic skill, and increased coordination is common to all types of training that’s done on a daily basis, but it is only the first step towards developing blazing speed and quickness.
When training to increase muscle speed, you should feel lighter and more responsive following a workout. This is because your muscle memory and your fast twitch muscle fibers will have improved in their ability to perform their natural functions - that is speed and quickness. And training for this type of speed should not be strenuous or time consuming.
The one thing that will give added speed and quickness to your sports skills is increasing muscle contraction speed. And that means getting a fast twitch response by conditioning your fast twitch fibers specifically for speed and quickness.
Sometimes what we have been taught to believe makes it hard to get past negative thinking.
Make sure you read this article which will explain more about what I have just talked about:
“Today’s isometrics outperforms plyometrics and other programs for speed training.“
http://www.athleticquickness.com/page.asp?page_id=47&source=AR-04b
Next Time: Fast Twitch Fibers and Fast Twitch Response: Why having muscles with a specific target distance to contract to is critical to superior speed.
Always glad to help!
Dr. Larry Van Such
November 4th, 2008 at 6:43 am
Hey Dr Such thank you so much first off.This is really helpin me am gainin the speed.But i have a question. To have the described speed, one has to build a strength base. So what about the pro athelettes like Michael Jordan? You and i both know that he was fastest but he also did reps in the gym.So how can one be able to have good memory of the fast twitch fibres? Because in basketball you have to be strong.So how can one maintain the speed? Thanks Doc
November 4th, 2008 at 7:40 am
Alfred, You may find these two articles helpful. One gives some tips on how to combine both speed and strength training into your workout program and the other talks about why it is important to train for speed and strength separately.
http://www.athleticquickness.com/page.asp?page_id=91
http://www.athleticquickness.com/page.asp?page_id=90
December 5th, 2008 at 5:04 pm
So after the memory in the fast twitch fiber muscles are established, does it go away sooner or later once weight lifting starts again? Or does it slow it down? How can I keep the speed up or muscle contraction memory, but continue to lift weights?
December 8th, 2008 at 11:19 am
Philip, You can find some good tips in this article that will help you maintain your muscle contraction speed and continue to lift weigths.
http://www.athleticquickness.com/page.asp?page_id=91
December 23rd, 2008 at 4:58 pm
What is a good age to start training a kid with this training method
December 24th, 2008 at 10:40 pm
I’ve heard of kids starting in this training when they were 7 and seeing good results. If a kid was say, 11, and was motivated to do this training, then I would say that was not too early to get started.