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
[correct upright posture is accomplished by:] Standing with the feet parallel and at right angles to lower legs. The feet should be [..] apart.
4-8” apart
Keep body wt equally distributed with feet
[correct upright posture is accomplished by:] Keeping the knees slightly bent
they act as shock absorbers for the body
[correct upright posture is accomplished by:] Keeping the buttocks in and abdomen up and in.
This prevents strain on the back and abdominal muscles
[risks for picking up or lifting heavy objects] 1. When picking up an object from the floor, [..]
bend the knees and lower the body. DO NOT BEND FROM WAIST.
[risks for picking up or lifting heavy objects] 2. The biceps are the strongest arm muscle and are effective when pulling,
PULL HEAVY OBJECTS INSTEAD OF PUSHING.
[risks for picking up or lifting heavy objects] 3. Always PROTECT THE SPINE, rather than twisting,
change foot position instead. Always keep the body balanced.
[risks for picking up or lifting heavy objects] 4. When assisting a patient to move, balance the weight over both feet and keep the feet together, rather than one foot ahead of the other.
Stand close to patient, flex the gluteal muscles, and bend the knees to support the load. Use arm and leg muscles to assist in the move
[risks for picking up or lifting heavy objects] 5. Make certain that the [..]
Floor area is clear of all object
