KIN428 Lecture Notes - Lecture 4: Arboreal Locomotion, Erector Spinae Muscles, Knuckle-Walking
19 Apr 2016
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2015-10-05 (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) What does the upper extremity allow: throw, use and create, carry things, swing for balance. How is it limited: impact, overuse repetitive or sustained, overhead postures. Our ue is key to our survival and our ability to thrive. By means of natural selection: genes differentiation to increase reproductive value. Humans are primates: first appear ~5-6 mya. Chimps are closest living relative (share 98% of our dna) More modern human form and behaviours (tool use) Current locomotion (bipedal = walk/run on 2 legs) preceded by: arboreal behaviour (in the trees): climbing, swinging, suspension/hanging, terrestrial behaviour: can include bipedal, most likely quadrupedalism (knuckle/walking). Bipedalism: habitual (only form of locomotion, non-locomotor, non-weight bearing ue, unique locomotion. Is it the same kind of bipedalism. Functional upper extremities: ue reflects our physical behaviours, physical form is related to physical function, related morphology (msk) to animals behaviour.
