Kinesiology 2236A/B Lecture Notes - Lecture 4: Collagen

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2236A/B
• Professor: Dave Humphreys

Document Summary

Extrinsic/external - originating outside the anatomical limits of a part (frequency, Intensity, tendency and type = fitt: ex. bad shoes, increased duration of training, not enough rest, icy field conditions. Intrinsic/internal - belonging to or lying within a given part (size of notch in our bone: ex. tight hamstrings, flat feet (pes planus), knee malalignment. Extrinsic (training, fit) or intrinsic (anatomy/physiology) increased tissue loads injury. Contractile tissue with central function to generate power (power to stabilize/move a joint) Well vascularized so: good oxygen and nutrients, good for healing (more we can push blood/oxygen, better it is going to heal, also a bad thing = bleed lots. Isometric - muscle contraction in which length of muscle stays constant: still working because gravity is pulling down on muscle/object, moderate force. Concentric - muscle shortens while contracting against resistance: reduced force with increased speed.