Week 9:Posture, flexibilty and stability Flashcards
How much does the average head weigh?
5kg
What are the fixator muscles of posture?
Transverse abdominus, glute max & med, vastus medialis, soleus, serratus anterior and lower traps
What are the characteristics of fixator/stabiliser muscles?
Built for endurance, consist mainly of slow twitch
What does continuous sitting increase the risk of?
Heart disease, diabetes, back/neck pain and orthopedic conditions
How many minutes does life expectancy decrease with everry hour of telly watching?
21.8 mins
How many hours on average do we spend sitting?
13
What is muscle proprioception?
Regulation of muscle stability and flexibilty through muscles stiffness
What is the sequence for reciprocal inhibition?
Muscles rapidly stretched Muscle spindle pulled on Results in the muscle contraction Inhibits antagonist contraction Prevents it from overstretching Informs brain
What is the sequence for autogenic inhibition?
Muscle slowly stretched
Golgi tendon organ activated to casue agonist muscle to relax
Inform brain when sense overload
What is the implication of sitting in a flexed posture all day?
Creep
What is the implication of sitting in an upright posture all day?
Muscle tension
What happens with creep?
Muscle spindles and golgi tendon organs become accustomed to flexion
Loss of info to brain when overloaded
Increase in load through soft tissue structures
Increase in nociceptor activity and subsequent pain
Potential accelertaion of soft tissue injuries
What happens with muscle tension?
Muscle fatigue
Stimulation of nociceptors and subsequent pain
What should you look for in the frontal plane when assessing posture?
Shoulder height, nipple line, gap between arm and hip, valgus/varus knees, pronation/supination of feet, hip rotation, pelvic height, scoliosis
WHat should you look for in the sagittal plane during a posture assessment?
Cervical protraction, shoulder protraction, pelvic tilt, knee hyper extension, lumbar lordosis, thoracic kyphosis
