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Body Alignment


Vocab WordDefinition
Positioning Proper positioning is important for stability when sitting, lying or standing. Can also isolate specific muscles during exercise.
Stability Ability of joints to maintain their integrity. Affects Balance
Balance Depends on base of support, centre of mass, line of gravity
Base of Support Region bounded by the body parts in contact with a supporting surface.
Centre of Mass Imaginary point in the body where all weight or mass seems to be centred. Usually located within the pelvic region in the anatomical position.
Line of Gravity Imaginary vertical line passing through the centre of mass and the supporting surface.
Maintain Stability Line of gravity of the entire body must remain within the base of support. If one segment moves forward another must move back to compensate.
Promote Stability 1 Increase size or area of base of support
Stability 2 Decrease height over centre of mass
Stability 3 Direct line of gravity over base of support
Stability 4 Keep movements slow and controlled
Created by: LisaSceviour