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Symsimma

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Reply with quote  #1 
 I came across this article on erasmataz.com concerning if the Tyranosaurus Rex could actually run fast. The article: http://www.erasmatazz.com/library/Physics/tyrannosaurus.html The author brings up a fact that I rarley, ok never, actually considered, nerve conduction velocity. I the author's opinion, T Rex could noot have run fast because of the "lag time" inherent in nerve impulse transmision. He goes further to state that this factor is little examined and accounted for when considering how organisms perform. Maybe this is why squid and cuttlefish can move rapidly, they have very large nerves.

I dont want to be too simplistic, but would it be safe to say that working with the impulse inertial trainer enhances nerve conduction in any way, or is it immutable depending on the animal's size, in this case human operators. What does this mean for any applications using the machine? Thanks.
stevedavison

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Reply with quote  #2 
i don't know how the t rex cns was constructed...but in mammmals there are two basic controll mechanisms.  the focul set and the postural set.   postural set governs your posture in essence and the focul set governs how you move.  both sets have neural feed back loops governing muscle lengths and acceleration of contraction.   your running posture is obviously different than your standing or sitting posture. and then there is gait.  this has a predetermined firing motor program controlled by the focul set.   focul set gets you going at whatever speed your postural set can accomodate balance and then gait keeps you going while focul set adjusts for balance during the gait...then you need to stop some how.   rams for instance get going quickly and use the head but for the stoping portion.   obviously a preset neural timing controlls the effeciency of the ramming component of that action....kinda like your timming in hitting a baseball ...or like an orka slapping a seal out of the water.   by the way orcas are not small (25-30 feet long and weigh as much as the t rex) and not slow.   i'd imaging the t rex had a multi control neural system and if necessary could put on speed...speed to run away or defend territory for mating and the like.  but i doubt speed for food is a practical strategy for a 7 ton land based animal.  a fall at 25 mph would be ultimatly fatal.   that said who cares?

as far as IET and conduction goes one paper studied EMG and IET

http://journals.lww.com/acsm-msse/pages/articleviewer.aspx?year=2001&issue=10000&article=00016&type=abstract 

http://www.ncbi.nlm.nih.gov/pubmed/11581557 

training produced quicker and more intense EMG with IET than other modalities.
I really don't want to compair other animals to humans when looking at how IET affects human performance.   We know IET trains fast twitch muscle.   we know trained and well developed fast twitch has larger nural pathways (with faster and more elitrical conduction) that slow twitch.  so we take a moderately developed athlete and super train with IET and get a higher density of fast twitch...ipso facto we have developed larger and more effecient neural conduction.   With IET we do it by developing the neural systems effeciency in calling up fast twitch performance.   this develops more fast twitch fiber and around and around the developmental process goes. 

Symsimma

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Reply with quote  #3 
Thanks, your explanations are helpful and lightening as always. I am developing a training modality around the concepts and principles of inertial exercise. Too bad I don't have access to an actual machine but I'm looking to change that. For now, I'm experimenting with the Bodyblade. Thanks again.
stevedavison

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Reply with quote  #4 

sorry for the delay in responce...while the Blade is a form of inertial exercise its purpose and application cannot give the power and acceleration results of the Impulse technology.   Its a fine product with acceleration and rep differences which create muscle contractions which are not at all like the Impulse.   I would not compare the two products as they are as different as apples and oranges.  

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