4264520
Descrição
Mapa Mental por joeawilson, atualizado more than 1 year ago
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Criado por joeawilson
quase 9 anos atrás
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Methods of Assessment for Physical Work
- Bodily changes in response to dynamic work
- Deeper and more rapid breathing, greater oxygen intake
- Increased heart rate and blood flow
- Increased release of glucose from liver
- More heat generated by muscular activity
- More heat lost through skin
from increased bloodflow and
sweating
- Metabolic speed increase
- Acumilation of lactic acid
in muscles as work
continues
- Therefore, there are direct chemical, physical and electrical measures of dynamic workload, though
practical difficulties in measuring these
- Deeper and more rapid breathing, greater oxygen intake
- Borg's scale
- A subjective scale wich asks the subject to rate their
perception of the work they are undertaking
- Scale developed to have scientific correlation and meaning
while still remaining subjective
- Scale of percieved intensity has ratio property, meaning that zero
is a relevant score
- Scale of percieved intensity has ratio property, meaning that zero
is a relevant score
- Scale of percieved intensity
- RPE - rating of percieved exertion
- Measure of Dynamic work
- A subjective scale wich asks the subject to rate their
perception of the work they are undertaking
- Perception of static work is different to dynamic
- Noticed in the form of fatigue, pain or discomfort
- Caused by build up of lactic acid locally witin muscles
- Noticed in the form of fatigue, pain or discomfort
- Electromyography (EMG)
- Direct measurement of muscle tension for static work
- Info obtained from
electrodes attached to skin
- Most reliable method of
measuring static work
- Difficult to apply to deep laying muscles
and requires expertise to apply properly
- Records changes in the electrical potential of
a muscle when it contracts
- Direct measurement of muscle tension for static work
- NIOSH Equations
- An equation which takes many factors into account to assess
appropriate lifting weights and postures
- Used to reduce work related lifting injuries and lower lifting loads
- Used to reduce work related lifting injuries and lower lifting loads
- Takes into account biomechanical, physiological
and psychphysical factors
- Revised methods were better at identifying high and
medium risk situations, but missed low risk ones
- An equation which takes many factors into account to assess
appropriate lifting weights and postures
- Posture Assessment
- It is important to assess posture as it
affects forces acting on the body as well
as forces the body is able to exert
- Assessed using recorded videos, measurements lumbaar
motion monitors ans sensors
- It is important to assess posture as it
affects forces acting on the body as well
as forces the body is able to exert
- RULA and REBA
- An easily conducted and quick assessment of 4 key
areas of posture position and work with instant feedback
- Considers four key risk factors for WRULDs: Awkward/extreme
posture of the upper limbs, neck, back and legs ; need for static
work ; forces required; need for repetition Identifies body parts
at risk
- An easily conducted and quick assessment of 4 key
areas of posture position and work with instant feedback
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