01:377:303 Lecture Notes - Lecture 18: Multifidus Muscle, Abdominal External Oblique Muscle, Gluteus Maximus Muscle
23 Mar 2020
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Document Summary
2 phases of walking: stance or support phase, swing phase. Stance phase is 60% and swing phase is 40% of the gait cycle. Double support: heel strike of one leg while the toe off of the other leg. Men vs women: men tend to walk faster and have longer stride length. Vertical oscillations: body"s cog at s2 from 2-5 cm pelvis at contralateral swing leg drops 8 degrees for 2 reasons: 1. places hip abd on stance leg on stretch to increase their force: what is being activated here: decreases the rise of the cog of the swing which decreases energy expenditure. Anatomical analysis swing phase of gait: spine and pelvis. Movements: pelvis rotates toward the support leg and spine moves in opposite direction; lateral tilt of pelvis of the swing leg. Opposite leg or unsupported leg: internal obliques and erector spinae. Hip movements: initial is flexion, er because of pelvic rotation and abduction at end of.
