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Lecture 5

KIN 427 Lecture 5.docx

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University of Waterloo
KIN 427
Stuart Mc Gill

KIN 427- January 22, 2013 - psoas minor= optional muscle - transverse abdominus in some people are very thin EMG electrode access - cannot access mutifidus through electrodes, they were actually measuring latissimus dorsi - able to get multifidus too but only right at the centre line otherwise, very unlikely * he expects us to be able to draw the bones -psoas= spine stabilizer- lose ability to extend spine when psoas is tight - glut med→ walking/ carrying muscle - monitor function of muscles→ 2 neuromuscular compartment EMG access: - rectus, ext oblique - int ob, transverse abdominis? - lat dorsi, longissimus, iliocostalis - multifidus QL, psoas Fascia - master of all connective tissue -elastic athleticism - remodels based on loading - dynamic stretching, whole body, gazzelle-like rebound is a function of training volume, dose must be right - he who who treats the site of pain - we stretch to tune the elastic component of individual - stretching is to tune elasticity of muscle/ spring and load not so much the traditional increase ROM How would you provoke each tissue? - disc, facets, ligaments, muscles, fascia section summary - where is the spine? - trabecualr structure - vascular- nutrition, shock absorbtion - neural- many pain candidates - disc mechanics- form and function - ligaments- line of action, function - muscles- iterpret lines of actions for function  muscles stop motion  which are agonists/ antagonists (trick questions)  large vs. small muscles, what does each one do?  potentiate fascia and stiffness - if he were to push on wall activating antagonist or agonist→ it is neither, all of them come on for stability - drawing muscles and bone Normal mechanics (chapter 2 and 5) - motion patterns: kinematics description of segment motion -motor pattersn: muscles activity patterns, muscle onset patterns, relative activity throughout a task -grooving motion/ motor patterns or " Engrams": repeating tasks to encode the pattern - people have engrams that cause them pain - we have to recognize these painful engrams and change the patterns that cause painful engrams and encode them to make them non-painful - motor control errors: inappropriate muscle activity patterns leading to non-optimal motion and possible instability etc. Low back biomechanics - not going to ask the average numbers - as you age your back gets a bit stiffer - you may have
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