Kinesiology lectures 8-9
Kinesiology lectures 8-9 EXSS 22000
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Popular in Kinesiology
This 2 page Class Notes was uploaded by Brady Hoyt on Tuesday February 23, 2016. The Class Notes belongs to EXSS 22000 at Ithaca College taught by Jennifer McKeon in Winter 2016. Since its upload, it has received 18 views. For similar materials see Kinesiology in Kinesiology at Ithaca College.
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Date Created: 02/23/16
Ligaments Connect bone to bone limit joint motion provide STATIC restraint against forces Intrinsic Found within joint capsule ex.) ACL Extrinsic Found outside the joint capsule ex.) LCL Articular Nerves: Joints are innervated Hilton’s Law o Nerves supplying a joint also supply the muscles moving the joint and the skin covering the attachment Lots of nerve endings in joint capsule o Joint position sense o Proprioception Awareness of motion, rate of motion, and position Nocioceptors Articular Arteries: Arise from vessels around the joint AnastomosesCommunicating vessels Arteries and veins found in articular capsule and synovium An injured ligament is called a SPRAIN Sprains can be graded for severity Common grading systems o 1st degree, 2nd degree, 3rd degree o Mild, moderate, severe 2/17/26 Movements at the Joints Osteokinematicsrelation of one bone to another bone (“bone motion”) This is the physiologic motion of the joints and bones This is the change in angle between 2 bones Can be in any of the 3 cardinal planes o Flex/Ext., Abd/Add, IR/ER o Also can be in a noncardinal plane (movement in a combination of planes ex.) Pron/Sup) Is voluntary Can be measured o ex.) Goniometer Arthrokinematics Joint Motion This is the accessory motion of the joint surfaces This is a relative motion between the joint surfaces 3 accessory motion o these motions are ROLL, GLIDE, and SPIN o ConvexConcave Rule When concave is moving on convex, roll and glide are the same direction when convex is moving on concave, roll and glide are opposite in direction Can not be performed voluntarily Cannot be measured with a Goniometer o (but “good hands” can feel it)
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