M Part II Flashcards
Principles of proper body alignment, movement and balance
Body mechanics
Significance of body mechanics
- Effective strength is increased
- Prevent muscle strain
Three concepts of essential to understanding principles of body mechanics
- Base of support
- Center of Gravity
- Line of gravity
[..] Portion of body in contact with the floor
[..] normal base of support
Base of support
4-8 m
A [..] of support provides stability for body position and movement
Broad base
Center of body weight
Point around which body weight is balance.
Located in the midportion of pelvis or S2
Center of Gravity
Center of gravity depends on:
1. [..]
2. [..]
body built
gender
An imaginary vertical line passing through the center of gravity
-90 deg or perp to base of support
Line of gravity
The body is most stable when the line of gravity [..] the base of support
bisects
Leading cause of injury to HCP in all HCI
Constant abuse of the spine from moving and lifting
Rules of body mechanics are based on [..]
laws of gravity
When an object is balanced, it is [..] and [..]
firm and stable
require good posture which means that the body is in alignment with all the parts in balance
Safety Body Mechanics
[correct upright posture is accomplished by] Holding the chest up and slightly forward with the waist extended
This allows lungs to expand properly and fill the capacity
[correct upright posture is accomplished by:] Holding head erect with the chin held in.
This puts spine in proper alignment and there’s no curve in the neck