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Mel, Mel, Mel Please THINK about what you are saying! You will refuse to accept that Tr Ab is part of a complex motor activity involving multiarticular movement unless I am able to connect someone's Transversus Abdominus to a fine-wire EMG and then get them to perform moves from Olympic Gymnnastics! Mel, complex multiarticular movements don't necessitate performing gymnastics. Reaching out to pick up a can of beans is a complex multiarticular movement, as is kicking a football or, stabilising against an external 'push'. If you have read the research you will see that it is these normal, complex, multiarticular movements that have been tested. The reason these normal day-to-day moves have been tested is because these are the moves that are associated with LBP onset. Could you do me a favour - could you please forward the references of the research you refer to when you say: "I have seen many of those studies and each one has been carried out according to a certain protocol with specific scope and limitations, as is the case with all scientific studies" - just so we can be sure we are singing from the same hymn sheet. John Spencer ----- Original Message ----- From: <[log in to unmask]> To: <[log in to unmask]> Sent: Friday, August 16, 2002 11:07 PM Subject: Movements not Muscles? > John Spencer <[log in to unmask]> writes: > > << Perhaps if you were more familiar with this 'apparent fact' you would be > aware that the research doesn't just indicate TrAb activation "in a given > limited situation" but in both upper and lower limb movements, at varying > > speeds, as well as during trunk perturbation (expected and unexpected), > independent of direction of movement. >> > > *** I have seen many of those studies and each one has been carried out > according to a certain protocol with specific scope and limitations, as is > the case with all scientific studies. Their findings still do not imply > universality under all non-pathological conditions. Have you read any > studies which have examined the differences in TrAb involvement during > cocontractive vs ballistic conditions (for more details of these different > types of movement, see Basmajian, "Muscles Alive")? For example, please > cite any references where TrAb monitoring has been carried out under the > complex ballistic and explosive conditions which are typical in many sports. > Some of the free standing floor exercises, saltos and manoeuvres in Olympic > gymnastics or the high jump might be interesting starting points. > > Dr Mel C Siff > Denver, USA > http://groups.yahoo.com/group/Supertraining/ >