The Russians used to do pre Excersise Stretching with a vibration Device
called Nasarov which vibrates at 7 times a Second. This stretching
prolonges/Relaxes the intramuscular structures and doesn't influence the
propriocepsis. I have tried it once on a workshop, but do not know if there
is anybody working with the device. The stretching results on myself were
very impressive, but the device to expensive. I advise my patients eversince
to do post-isometric or normal stretching first and close with a stretching
combined with slightly activated muscles.
Greetings,
Marco
----- Original Message -----
From: luke harris <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, October 12, 2000 8:22 AM
Subject: pre-exercise stretching
> Actually Henry, everything I have read so far says exactly the
> opposite: that there are many proposed benefits for stretching before
> exercise, however not all have been substantiated (in particular the
> relationship between stretching and injury prevention).
>
> Although it seems to make sense, there doesn't seem to be conclusive
> evidence around stating that stretching decreases the chance of having
> an injury. Maybe you have stumbled across a couple of articles that
> have been hidden from me (my class-mates, and my exercise physiology
> lecturer).
>
> To me it seems unethical (and impractical) to hold a RCT to
> investigate the relationship. Unethical because the study would
> essentially involve making some subjects stretch with their warm-up,
> and others not, with the belief that half of them will come out with
> an injury? How exactly are you going to phrase your consent form to
> get people to agree??
>
> And impractical as it is a commonly-held belief in the community that
> stretching is effective for injury prevention. If you gathered
> subjects for the trial and instructed half not to stretch, yet be just
> as involved as those who did... they'll have the preconception that
> they may incur an injury, and will only gradually involve themselves
> in whatever activity you set. How would you control that??
>
>
> ** Very interesting, and very much against everything we have known
> about stretching before exercise. Is the paper published on the
> internet, and if not, where can I get hold of this paper. However, I
> have a few questions:
>
> ** Is there any further research that will backup this claim the
> pre-exercises stretching is not beneficial for injury prevention?? Was
> the study specific in saying which muscles they stretched, how they
> stretched them, whether they stretched for a certain time frame, and
> whether they stretched after their exercises?? it seems to me that
> 1538 people is a large sample, and would be difficult to control these
> factors, which are as important in injury prevention as simply doing
> stretches.
>
> >Henry***
> >
> >>From: "Linda K" <[log in to unmask]>
> >>Reply-To: [log in to unmask]
> >>To: <[log in to unmask]>
> >>Subject: pre-exercise stretching
> >>Date: Thu, 12 Oct 2000 22:03:39 +0100
> >>
> >>in 1996 Pope R et al (proceedings of the 1996 National Physiotherapy
> >>Congress p193 - A RCT to determine whether pre-exercise stretching
> prevents
> >>injury ) did an RCT with 1538 male Australian army recruits and
> showed that
> >>there were no benenfits of pre-exercise stretching in preventing
> injury
> >>(presumably this would also apply to the weight lifters and mm in
> the
> >>lumbopelvic region). Injury was more closely correlated with
> aerobic
> >>fitness.
> >>Linda K
> >>
> >>----- Original Message -----
> >>From: "Henry Tsao" <[log in to unmask]>
> >>To: <[log in to unmask]>
> >>Sent: 09 October 2000 21:48
> >>Subject: Re: TA & Stabilisation?
> >>
> >>
> >> > Dr Siff and others,
> >> >
> >> > I was talking to friend who worked at the olympics as a
> Physiotherapist
> >>down
> >> > in Sydney in the last 2 weeks, and briefly touched upon the issue
> of low
> >> > prevalance of back pain in weightlifters. He offered me a
> different
> >> > alternative on why back pain was limited in weightlifters:
> >> >
> >> > 1. They stretched their muscles always before they compete, hence
> they
> >>have
> >> > length and strength in their muscles. This means that the TrA and
> >>multifidus
> >> > muscles will not be inhibited and can be used to stabilize the
> lumbar
> >>spine.
> >> > This is in contrast to a worker who does not stretch at all
> before heavy
> >> > lifting, tightens muscles in the lumbopelvic region, which in
> turn
> >>inhibits
> >> > the TrA and Multifidus muscles and hence are more prone to injury
> as a
> >> > result of reduced lumbar stability.
> >> >
> >> > 2. Most sport people will have physiotherapy, chiropractic and
> other
> >>therapy
> >> > intervention during their training (I know for a fact that
> Maurice
> >>Green,
> >> > the 100M champion has both Physiotherapy and chiropractors work
> on him
> >>4-5
> >> > times a week. These will not only free up their joints, but also
> help
> >> > stretch their muscles. It is like having treatment regularly -
> hence
> >> > reducing the prevalence of back pain.
> >> >
> >> > 3. The diet that sports people are on usually is very beneficial
> for
> >> > healing. Diet is a big part of the human body. Therefore, even if
> they
> >>have
> >> > an injury, they will heal a lot faster than compared to the
> average
> >>worker
> >> > who strains their back.
> >> >
> >> > 4. Psychologically, it is known that if you are under a lot of
> stress,
> >>such
> >> > as the stress of work, your muscles will tighten. Most sportman
> (and I
> >>mean
> >> > most) are motivated and so focused in what they do that their
> normal
> >>pain
> >> > threshold would be high, especially in weightlifters. They need
> to block
> >>out
> >> > the aches and pains in their muscle and simply focus on what they
> are
> >>doing.
> >> > I know as a soccer player I have had times where I would play a
> game and
> >>be
> >> > so focused in the game, not realizing that my legs were bleeding
> from a
> >> > previous tackle until I slow down.
> >> >
> >> > We both agree that there is a lot of factors involved, and we can
> not
> >>simply
> >> > pinpoint a single factor on why weightlifters and most sport
> people
> >>don't
> >> > have back pain. However, it does show us that other factors such
> as
> >> > nutrition and psychology play a big part in the overall
> presentation of
> >>the
> >> > human being.
> >> >
> >> > To answer some of the questions posed by Dr Siff:
> >> >
> >> > >5. Are TrA methods definitely superior to most other methods of
> >>addressing
> >> > >back pain?
> >> > ***Definitely not, TrA, like any other Physiotherapy method, is
> always
> >>used
> >> > in conjunction with other Physiotherapy techniques, and it is
> always
> >> > difficult to say which methods are the best simply because every
> patient
> >>is
> >> > different. This is probably why Physiotherapy has lacked so much
> >>evidence,
> >> > because research is not easy to do, since we do not use a single
> >>technique
> >> > in our treatment(eg, it took Physiotherapists down in Sydney 6
> months to
> >> > examine the effectiveness of AP glides on the AC joint in the
> shoulder).
> >> >
> >> >
> >> > >6. How does one non-invasively check for TrA 'miseducation' or
> >>'laziness'
> >> > >during full ranges of dynamic or ballistic 'functional' movement
> (such
> >>as
> >> > >running, lifting and jumping)?
> >> > ***This is still to be shown, but the TrA theory offers us a way
> of
> >>thinking
> >> > and an explanation to what is happening in the lumbar spine. With
> >> > advancements in technology, I am sure they will soon be able to
> check
> >> > non-invasively TrA activation during functional movements.
> >> >
> >> > >7. Why do some cases of back pain, even among those with
> apparently
> >>'weak'
> >> > >or 'lazy' TrA muscles, spontaneously resolve themselves without
> >>repeatedly
> >> > >recurring?
> >> > ***Is there any research on the percentage of back pain patients
> who
> >>resolve
> >> > spontaneously and NEVER get back pain again. It would have to be
> a very
> >> > extensive longitudinal study to show this, and would be a very
> >>interesting
> >> > topic of discussion.
> >> >
> >> > Henry***
> >> >
> >> >
> >>____________________________________________________________________
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> >> >
> >>
> >
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>
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