Kinesiology 2241A/B Lecture Notes - Lecture 1: Sagittal Plane, Angular Displacement, Flight Control Surfaces

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2241A/B
• Professor: Thomas Richard Jenkyn

Document Summary

Direction parallel to ground= horizontal = x, runs forwards and backwards. Direction perpendicular to ground= vertical = z, runs up and down. Y = parallel to ground, runs right and left. Linear motion- object forced to move in a line. Axis of rotation- if a system is restricted or secured so the system rotates around this point is called axis of rotation. The resultant motion of system is called rotary or angular motion. Eg. nodding no and second hand of the clock. Angular displacement- change in location of rotating body. Radius of rotation- distance from any point on the rotating segment to the axis of rotation. Mediolateral axis - axis running side to side relative to body, also called y axis. So flexion of the elbow is an example. It is linked with sagittal plane, which divides body into left and right. Frontal plane and anteroposterior axis- runs through front and back of the body.