Kinesiology 2236A/B Lecture Notes - Lecture 2: Anatomical Terms Of Motion, Disk Density, Kevlar
10 Jan 2020
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Multiple factors are important in the prevention of athletic injuries. Design: to prevent injury, to protect injured parts from further injury. Practicality dictates that protective equipment should be; Turning aside of off course: round shape, hard shell, ridges, smooth. To cause to spread thin and gradually vanish. Disperse focal force over a larger surface. Change in shape or structure: cantilever pad- force moves from downward to outward to disperse the force. May blow apart at high force: bike helmets designed to blow apart, single use. Increased density = greater resistance @ high force. Mask 2-3 finger width from nose good vision. Strap snug to chin: 2 vs 4 pt. Fit can be altered by: temperature, hair length, deterioration or internal padding, loss of air (air bladder helmet) Modifications should be done to the manufacturer"s specification and should not alter the original fit. Modifications should not increase stress or damage to original material: no drilling, cutting, slicing.
