BIOMECHAN BASIS KIN
BIOMECHAN BASIS KIN KIN 3514
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This 4 page Class Notes was uploaded by Zelda McCullough on Tuesday October 13, 2015. The Class Notes belongs to KIN 3514 at Louisiana State University taught by M. Thompson in Fall. Since its upload, it has received 19 views. For similar materials see /class/222607/kin-3514-louisiana-state-university in Kinesiology at Louisiana State University.
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Date Created: 10/13/15
KN 3514 Biomechanical Basis of Kinesiology Joint Motion Flexibility different from ROM looking at muscle tissue and the tendon musculotendinous unit subjective description looks at the musculotendinous ability to lengthen or elongate to test flexibility of hamstring group you need to do things such as sit and reach but that doesn t just measure hamstring flexibility very generalized tough to be speci c Range of motion rather use ROM at each joint how much motion can occur speci c to the joint not a particular muscle group you can actually measure and get a number very objective musculotendinous unit does playa role Closed Kinetic Chain ability ofa joint to move in a fixed closed manner ex in a pushup squat the foot will be fixed to the ground and other muscleswill be rotating around the fixed position if you are weight bearing supporting your weight on the distal muscle then you are closed 0 Open Kinetic Chain ability ofjoints in the distal segment to move in a free open manner example is bench press JOINT MOTION Arthrokinematics Motion at a joint occur as a result of one joint surface moving in relation to another arthrojoin kinomaticmotionmovement these are absolutely mandatory to have normal ROMjoint motion not measurable o Accessory motions involuntary no control or thought process over this motion 0 Movements are described as o Slides glides translator motion 0 Spin rotary motion Screw home mechanism in order fortibial and bula to match up 0 Roll rotary motion similar to a tire rolling on the road KN 3514 Biomechanical Basis of Kinesiology Osteokinematics 0 Physiological vountary controlled by CNS 0 Movement of the shafts of bones described in terms of rotary motion produced as if the motion occurs about a fixed axis of motion whole bone movement also called physiological example would be knee exion Sagittal plane Planes and Axes Coronal plane 0 Osteokinematic motions are classically described as taking place in one of the T39an ve39semaie threecardial planes 0 Frontalcoronal o Sagittal o transverse o The cardinal planes occur around three axes o Mediallateral o Anteriorposterior 0 Vertical Sagillal plane o Sagittal o MedialLateral Axis Always has the same axis Mammal Arm is moving in the same plane within the entire motion Flexionextension Divides body in rightleft o Frontal o AnteriorPosteriorAxis Abadduction occurs here I Divides body in anterior and posterior 7 Varlcal ax 0 Transverse 0 Vertical Axis Rotation motions The axis never moves fixed Tmnswrse Diane KN 3514 Biomechanical Basis of Kinesiology Demonstrated head rotation pen was the axis of rotation andwas xed in the middle of the head Axis is always perpendicular to the plane Divides body in superior and inferior Combinations movements do occur circumduction FLXABDERetc Goniometry only measures singleplanemotions 0 Has a rotary dial in the middle and two arms the arms go along the shaft of the two bones you are looking at 0 Fully extended straight knee is zero RANGE OF MOTION Starting position for all ROM except fortransverse plane is anatomical position 0 Everything is in a neutral or zero position Uses a 0 to 180degree notation system 0 All motions start a 0 deg and move towards 180 deg FACTORS AFFECTING ROM Age 0 Youngest age groups have more joint ROM 0 Hip FLXABD ER 0 Ankle dorsiflexion o Elbow motion 0 Age groupnorms should always be used Gender 0 Are joint and motion specific 0 Females 21 69y have less hip EXT but more hip FLX than males did Function 0 Baseball pitchers have greater ER external rotation at shoulder KN 3514 Biomechanical Basis of Kinesiology Determination of ROM Active AROM o Attained by subject during unassisted voluntary joint motion Passive PROM o Attained by the examiner without assistance from the subject 0 Usually greater than AROM 0 Provides information regarding integrity of Articular surfaces ball and socket allow a lot of ROM while hinge joint gives us little ROM Joint capsule how much can the joint capsule lengthen Ligaments Muscles Planes of Mtion in Action 1 What plane ofmotion does knee extension occur in sagittal 2 What plane ofmotion does shoulder internal rotation occur transverse 3 What is the aXis of rotation for hip abduction Anteriorposterior 4 What plane ofmotion does ankle inversion occur
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