KIN104 Lecture Notes - Lecture 8: Local Access And Transport Area, Ambling Gait, Inverted Pendulum
30 Oct 2015
School
Department
Course
Professor
Document Summary
Pendulum doesn"t collapse (only a little bit of a spring, yield of knee) Pendulum isn"t at a fixed length, its shortening and extending. Center of mass goes down in the middle of stance phase. Model as a spring (absorb and release energy) Elastic energy : potential energy stored by deforming (stretching) tissue (connective) Storage vehicle that you could either release or use (eccentric contraction) elasticity in the tendons and all the tissue that holds the muscles together are connective tissue. Lots of potential for elastic energy in the muscles and the fibers surrounding the muscles. Elastic at tendon and parallel to the muscle. Motor programs and motor patterns description of muscle activity. Prioritizing speed in running (trade-offs ) more costly in terms of metabolic fuel (more muscle contraction in order to move center mass into the air then absorbs) More risk of potential injury (high forces, eccentric loading) Describes time of when burst begins and ends, amplitude.
