Body Mechanics and Patient Transfer Flashcards
(109 cards)
- What are the most commonly injured body parts in healthcare?
Back/Spine
Shoulder
What is an Industrial Athlete?
Any worker who performs physically demanding work requiring his or her body to perform precise and/or repetitive skeletal movements, body positions, and manual tasks
Lifting, carrying, pushing, pulling, twisting
What does a professional athlete and an industrial athlete have in common?
Skill Will Coaching Great Equipment Physically Demanding Work
What is the difference between an elite athlete and an industrial athlete?
An elite athlete is limited with their time in the gym/field, periodization, and shorter careers.
The industrial athlete works long shift work hours, overtime, no periodization, and have longer careers.
What are periodization principles?
Elite Athletes also adhere to periodization principles in which the amount and intensity of training/competition is adjusted throughout the year. This is done to increase performance and prevent injury. Professional athletes and their medical staff know that pushing your body constantly without periods of reduced intensity or rest will result in mechanical breakdown (INJURIES)
In contrast, our Industrial Athlete in Healthcare are potentially working 20+ years, and some closer to 30 or 40.
What are ergonomic risk factors?
Awkward/Sustained Posture Forceful Exertions Contact Stress Repetition Gripping Vibration These ergonomic risk factors are the building blocks of injury.
How does your body position affect the pressure on the spine?
- When you stand this is considered 100% pressure on the spine.
- When you are lying down this is considered the least amount of pressure on the spine.
- When you lean over the pressure on the spine & discs increases up to 275% depending on the exact position!
See slide 12.
What is the power position?
Pelvis is 1/2 flexed or tilted.
Buttocks out.
Knees and hips flexed.
Head up.
Results: Keeps the curves; keeps the work in the legs.
Provides a stable base of support, enables quick reaction with less distance to travel. Allows curve of spine to be in neutral position even when low to the ground. A young child uses this position naturally.
What is the power zone?
Between the chest and midthigh.
What are the principles of good body mechanics?
- Load/arms close to body
- Hands between hips and shoulders
- Use legs to weight shift
- Avoid twisting the back
- Slow and controlled
What is the ideal work height?
This varies with the type of work being performed, i.e. whether it is light or heavy.
Precision work - 6” above elbow height to avoid excessive upper back and neck bending.
Light work - at elbow height.
Heavy work - 6” below elbow height to utilize lower body strength.
What can you do to improve your work position in a healthcare setting?
Consider equipment placement and patient/bed placement.
Perform: Macro and micro changes – bed and patient. Raise/lower equipment to optimal working height.
Think: Easier for the patient to move than for you. Ok for them to be temporarily uncomfortable to avoid repetative strain injuries to HCW.
Use Tools such as Bolsters – for you and the patient’s comfort/access.
Note: Google says as a noun, a bolster is a long thick pillow placed under other pillows for support; as a verb it means to support, strengthen, or to prop up.
What is the effect of sustained positions? How do you counter-act effects of awkward and/or sustained positions?
At rest, the amount of blood and blood flow required is low compared to dynamic movement. But during a sustained force position our body needs lots of blood but blood flow is low as blood vessels are compressed and blood is not as effectively being pumped through the muscle. This mismatch between blood flow needed and actual blood
flow can lead to muscular fatigue and decreased efficiency much sooner than dynamic work. This increases the risk for injury.
Changing positions frequency is our best prevention.
What are some examples of sustained positioning in the healthcare setting?
During an ultrasound. Lab work: Microscopy BSC or fume hood Cell counters Microtome work Pipetting Overhead lifting Lab workbenches
What is the ergonomic issue with electronics? How can you avoid?
Tech neck - describes the injuries and pain from time spent looking down at devices. Estimated added stress on neck, ~ 60 lbs onto neck (4 bowling balls).
Avoid tech neck by keeping chin up and maintaining a neutral position. Do not change the position of your neck.
How can you reduce the forces involved in moving equipment?
Slow and controlled movements will reduce the required exertion (forces) more than faster, jerky ones.
What is contact stresses/pressures in ergonomics? What body areas are particularly vulnerable to this?
- Contract stress occurs when a force is concentrated on a small area of the body, which can pinch or compress the underlying nerves and tissues and restrict normal blood flow to that area.
- Examples:
a) hard or sharp object comes in contact with the skin such as kneeling on hard ground,
b) leaning against a bed rail or stretcher, c) resting forearms or wrists on the edge of a surface (e.g., computer work), or
d) when ridges and hard edges on equipment dig into your hands.
The sides of the fingers, palms, wrists and forearms, elbows and knees are most susceptible because the nerves, tendons and blood vessels are close to the skin and underlying bones in those areas.
What is repetition and what affect does it have on the body? How do we prevent it? What can occur if we do not?
- Repetition entails performing the same motion or series of motions over and over
again using the same muscle groups with little variation or chance of recovery time. - The muscles begin to fatigue and the amount of force a person can exert and the capacity to do work will decrease.
- The task needs to be stopped for a
period of time in order for the body to recover. Time needed for recovery depends on the task as well as the individual’s physical conditioning. If the break is too short, the body will not have recovered fully and the capacity to do work decreases more quickly.
** Variation in type of task & frequent breaks** help prevent repetition issues. - Repetition can have a cumulative effect over time and result in repetitive
strain injury (RSI), similar to a single incident of excessive force.
What is an example of a repetitive task in the healthcare setting?
CPR
Microtome work in the lab.
How does the type of grip used affect the force and risk of a musculoskeletal injury (MSI)? How is this an issue with patient handling?
Gripping
1. The type of grip used when handling patients will affect the force that can be generated and risk of MSI.
2. A power (cylindrical) grip, which uses the entire hand to produce force, provides the maximum gripping force that can be generated by the hand and requires
the least amount of effort.
3. A pinch (precision) grip, which only involves the fingertips (i.e., between thumb and finger(s)), can produce ~25% of the force of a power grip.
4. Because the human body does not possess any handles, it is difficult to find areas that would enable the use of a good grip, at least not without potentially injuring the patient.
How does vibration in the workplace affect the body? Where may it be experienced in the workplace setting?
Vibration results in more intense upper body but affects the whole body. Vibration can increase the chances and/or impact of injury by about 25%
Example: Riding in an ambulance.
What is the Hierarchy of Controls?
In order from most effective to least, they are:
- Elimination
- Engineering Controls
- Administrative Controls
- PPE
What are some examples of administrative controls?
Job Rotation
Rest Breaks
Work Practice Changes
What are some examples of PPE in the hospital?
Gloves, respirators, lead protection etc.
Proper footwear
Bolsters
SPH equipment