Kinesiology 2241A/B Study Guide - Midterm Guide: Long Jump, Angular Velocity, Gyration
17 Jan 2018
School
Department
Course
Professor
Document Summary
Initiating a rotation while airborne: reaction rotation: moving the body one way to get a twist in the opposite direction. Ex: bend the chest down to shoot the legs up at the end of a long-jump. The larger the r, the large the reaction rotation: cat rotation: when a cat is dropped from a position where it is on its back the following happens. It turns its torso toward the ground, causing its leg to rotate the opposite direction. It then rotates its legs toward the ground, slowing the rotation of its torso. As a result it lands safely on all fours: twist from a sommersault: when doing a sommersault, drop one arm. This causes the side with the dropped arm to rotate faster than the side with the arm up. As a result, the person begins to rotate about their longitudinal axis in addition to their ml axis. Pretty much to allow fast twisting without as great reaction forces!
