THORACIC SPINE KINEMATICS AND KINETICS (BIOMECHANIS OF SPINE)Physiotherapy Tutorial

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summary of the video with the time for reference:

1.Kinematics

-Upper thoracic region 0:54
-Flexion is limited due to posterior longitudinal ligament and ligamentum flavum
-Extension is limited by spinous process, lamina and capsule
-Lateral flexion and rotation is coupled which occur in same direction
-lateral flexion and rotation is limited by rib cage

-Lower thoracic region 3:28
-facet in saggital plane which increases flexion extension and reduces rotation
-Lateral flexion and rotation is coupled which occur in opposite direction

-Ribs 5:06
-ribs covexity increases when thoracic vertebra rotates hence the adaptability of ribs influences the mobility at thoracic spine and also mobility at costo vertebral and costotransverse joint

3.Kinetics 7:00
-high compressive forces
-Line of Gravity passes anteriorly
-This produces flexion moment
-Countered by extensors and posterior longitudinal ligament


#biomechanicsofspine
#spinebiomechanics
#vertebralcolumnbiomechanics

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