principles of body mechanics Flashcards
(17 cards)
What enhances body balance?
Good alignment
Body balance is achieved when a wide base of support exists, the centre of gravity falls within the base of support, and a vertical line can be drawn from the center of gravity through the base of support.
What are body mechanics?
Coordination of musculoskeletal and nervous system to maintain balance, posture, and body alignment
Proper body mechanics reduces the risk of injury and fatigue, facilitates mobility, and allows for efficient use of energy.
What regulates movement?
Musculoskeletal system and nervous system
Joints, ligaments, tendons, and cartilage permit strength and flexibility of the skeleton.
Define body alignment.
Relationship of one body part to another along a horizontal or vertical line
What is friction?
A force that occurs in a direction opposing movement
The greater the surface area of the object to be moved, the greater the friction.
How can you reduce friction when lifting patients?
Avoid lifting manually; use friction-reducing devices
When possible, use some of the patient’s strength and mobility to assist with transferring or moving.
What are common causes of musculoskeletal injuries (MSI) for workers providing physical care?
Awkward body positions and considerable physical effort
MSIs usually affect the back, neck, shoulders, and wrists.
What can incorrect bed height cause?
Awkward body posture and increased stress on the back
A bed that is positioned too low will force a worker to bend forward, increasing the risk of injury.
What is a safe posture when moving a patient?
Keep back straight, shoulders back, elbows in, and wrists straight
Use a wide stance with hips and knees bent.
What should be done when preparing to slide, turn, or transfer a patient?
Keep a wide sideways stance or wide walking stance with hips and knees bent
What is the principle for using mechanical lifts?
Essential if the client is unable to assist
How can stability be increased when lifting?
Use a wider base of support and lower the centre of gravity
The equilibrium of an object is maintained as long as the line of gravity passes through its base of support.
What should you do before lifting?
Plan before you lift
Fill in the blank: Keep the weight to be lifted as ______ to the body as possible.
close
What should you avoid while lifting?
Twisting
What is the recommended posture for lifting?
Bend at the knees, tighten abdomen, and tuck pelvis
Maintain trunk erect and knees bent.
True or False: Alternating periods of rest and activity is important for safe lifting.
True
