Sustained posture Examples of sustained posture – where part of or the include: Figure 7 whole body is kept supporting plasterboard sheeting in the same position while it is nailed into place for a prolonged (Figure 7) period. continually standing with weight mainly on one leg while operating a power press with foot pedal controls. Awkward posture Examples of awkward posture – where any part of the include: Figure 8 body is in an squatting while servicing plant or uncomfortable or a vehicle unnatural position, working with arms overhead such as: bending over a desk or table postures that are using a hand tool that causes the unbalanced or wrist to be bent to the side asymmetrical kneeling while trowelling postures that concrete or laying carpet require extreme bending the neck or back to the joint angles or side to see around bulky items bending and pushed on a trolley. (Figure 8) twisting. Vibration There are two common forms of vibration according to contact points between the body and the source: Whole body vibration Examples of whole body vibration occurs when vibration is include: Figure 9 transmitted through the operating mobile plant such as whole body, usually via a heavy earth moving machinery supporting surface, such as a seat or the floor in driving a vehicle over rough heavy vehicles or terrain.(Figure 9) machinery. This may result in lower back pain, degeneration of the lumbar vertebrae and disc herniation.
Sustained posture – where part of or the whole body is kept in the same position for a prolonged period. Examples of sustained posture include: supporting plasterboard sheeting while it is nailed into place (Figure 7) continually standing with weight mainly on one leg while operating a power press with foot pedal controls. Figure 7 Awkward posture – where any part of the body is in an uncomfortable or unnatural position, such as: postures that are unbalanced or asymmetrical postures that require extreme joint angles or bending and twisting. Examples of awkward posture include: squatting while servicing plant or a vehicle working with arms overhead bending over a desk or table using a hand tool that causes the wrist to be bent to the side kneeling while trowelling concrete or laying carpet bending the neck or back to the side to see around bulky items pushed on a trolley. (Figure 8) Figure 8 Vibration There are two common forms of vibration according to contact points between the body and the source: Whole body vibration occurs when vibration is transmitted through the whole body, usually via a supporting surface, such as a seat or the floor in heavy vehicles or machinery. This may result in lower back pain, degeneration of the lumbar vertebrae and disc herniation. Examples of whole body vibration include: operating mobile plant such as heavy earth moving machinery driving a vehicle over rough terrain.(Figure 9) Figure 9
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