Supertraining

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[Supertraining] Re: Static Contraction Training Dr. Michael Yessis Mon Jul 14 07:07:51 2008

[Telle writes: -- Practitioners recommend anywhere from 100-140% 1 RM. Most
recommend
using a weight that can be voluntarily halted or at least lowered at a 3-6
second rate -- does anyone use a weight that cannot be slowed and descends
at a
180° a second rate?]
*********************

Reply by Yessis:

Not that I know of.  An altitude jump may do this.


[Telle writes: -- then why is isometrics more beneficial -- since force
cannot be
measured -- unless sophisticated load cell equipment is available?]
**************

Reply by Yessis:   more beneficial than what?    The force can be measured.

******************************************************

Dr. Yessis wrote: -- All exercises are dynamic. Isometrics is never
for max strength of any body part.

[Telle writes: I can see the reason for isometrics for those body parts that
remain
stable during exercise though I would still tend to believe that loading the

trunk inertially would be more effective than statically]
***********************

Reply by Yessis:  I don't believe I ever said or implied that you should load  
the
trunk
isometrically.  It gets loaded when doing isometrics in a position that
requires trunk stabilization.

Dr Yessis wrote: -- of the parts stabilized??

[Telle writes: -- At the isometric phase of an E-I-C (eccentric-isometric-
concentric)
dynamic lift wouldn't all "parts" be stabilized? Isometric forces are quite
a bit greater as a function of eccentric history. I'm thinking a static
isometric effort is non specific to dynamic E-I-C actions?]

REPLY  -- I agree

Michael Yessis, Ph.D
Professor Emeritus, CSUF
President, Sports Training, Inc.
[EMAIL PROTECTED]
www.dryessis.com <http://www.dryessis.com/>
760-480-0558