Low Back Pain in Port Machinery Operators

Bovenzi, Massimo; Pinto, Iole; Stacchini, Nicola

doi:10.1006/jsvi.2001.4246

Cited by 106 publications

(83 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Characterising the behaviour of the seated human body exposed to whole-body vibration (WBV) has been of interest since its first applications to defence sectors 1) to the present issues of spinal disorders and low back pain (LBP) among the operators of vibrating machinery 2,3) . Considering the vibrating human body to be a mechanical system, biodynamic functions such as the apparent mass (APMS) and seat to head acceleration transmissibility (STHT) have been experimentally derived 4,5) .…”

Section: Introductionmentioning

confidence: 99%

“…While the two biodynamic functions described above are derived from measurements at the seat or the head in the laboratory, the majority of the vibration-related health disorders at the workplace have been noted in the lower regions of the back 2,3) . The vertebral units of the musculoskeletal spine composed of bony vertebrae connected by softer elements (endplates, discs, ligaments and muscles) transmit and distribute induced vibration energy from the seat through the body to the head.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of Support Conditions on Vertical Whole-body Vibration of the Seated Human Body

M-Pranesh

Rakheja

DeMont³

2010

Ind Health

View full text Add to dashboard Cite

Abstract:The vibration transmission to the lumbar and thoracic segments of seated human subjects exposed to whole body vibration of a vehicular nature have been mostly characterised without the back and hand supports, which is not representative of general driving conditions. This non-invasive experimental study investigated the transmission of vertical seat vibration to selected vertebrae and the head along the vertical and fore-aft axes of twelve male human subjects seated on a rigid seat and exposed to random vertical excitation in the 0.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of Support Conditions on Vertical Whole-body Vibration of the Seated Human Body

M-Pranesh

Rakheja

DeMont³

2010

Ind Health

View full text Add to dashboard Cite

show abstract

“…side-to-side axes [3][4][5][6][7] . Table 1 lists examples of the frequency-weighted rms accelerations (a wx , a wy and a wz ) due to vibration transmitted along the fore-aft (x-), side-to-side or lateral (y-) and vertical (z-) axes of various industrial and heavy road vehicles, derived on the basis of W d -and W k -weighting filters defined in ISO 2631-1 8) .…”

mentioning

confidence: 99%

Energy Absorption of Seated Occupants Exposed to Horizontal Vibration and Role of Back Support Condition

Rakheja¹,

Mandapuram²,

Dong

2008

Ind Health

View full text Add to dashboard Cite

Occupational off road vehicle drivers are exposed to considerable magnitudes of whole-body vibration (WBV), which is known to cause discomfort, annoyance, and several health and safety risks. Many studies have suggested strong association between the exposure to WBV and low back pain 1,2) . The vast majority of the studies on human responses to vibration have emphasized the exposure to vertical WBV, since heavy on-road and off-road vehicles are believed to transmit relatively higher magnitudes of vertical vibration than those along the other axes. Such vehicles, however, also transmit substantial magnitudes of horizontal vibration (HV) along the fore-aft and

show abstract

“…A summary prevalence odds ratio (POR) of 1.98 (95% CI 1.56-2.50) was found for LBP in the past 12 months in 24 groups of professional drivers exposed to WBV when compared with unexposed controls comprising administrative officers, manual workers and maintenance operators ( Figure 3) [41,[46][47][48][49][50][51][52][53][54][55][56][57]. In the same analysis, a summary POR of 1.67 (95% CI 1.25-2.23) was found for 12-month prevalence of sciatic pain in the professional drivers.…”

Section: Low Back Pain and Sciaticamentioning

confidence: 99%

Rheumatic effects of vibration at work

Palmer

Bovenzi

2015

Best Practice & Research Clinical Rheumatology

View full text Add to dashboard Cite

Occupational exposures to vibration come in many guises and are very common at a population level. It follows that an important minority of working-aged patients seen by medical services will have been exposed to this hazard of employment. Vibration can cause human health effects which may manifest in the patients that rheumatologists see. In this chapter we identify the health effects of relevance to them, and review their epidemiology, pathophysiology, clinical presentation, differential diagnosis, and vocational and clinical management. On either side of this, we describe the nature and assessment of the hazard, the scale and common patterns of exposure to vibration in the community, and the legal basis for controlling health risks, and comment on the role of health surveillance in detecting early adverse effects and what can be done to prevent the rheumatic effects of vibration at work. Keywords vibration; occupation; Raynaud's; back pain; carpal tunnel syndrome The nature and measurement of vibration at workVibration is an oscillatory motion, characterised by the frequency of the oscillatory cycle, its magnitude, and its direction. Its potential to cause injury is believed to relate to the average intensity of energy imparted to tissues.The magnitude of oscillatory motion can be quantified in terms of its maximum displacement or velocity, but is normally expressed in terms of its acceleration, and timeaveraged (the so-called 'root mean square (r.m.s.) magnitude'). The frequency of motion is expressed in cycles per second (Hertz). Biodynamic investigations have shown that the response of the body to vibration is frequency dependent and to account for this, standards for exposure evaluation weight the frequencies of measured vibration according to the assumed effects at each frequency. Frequency weightings are applied to measurements taken Conflict of interestNone. Europe PMC Funders Group Europe PMC Funders Author ManuscriptsEurope PMC Funders Author Manuscripts in three axes at right angles to one another, sited at the boundary between the body and the vibration (e.g. using accelerometers mounted on the handle of a powered tool or the seat of a vibrating vehicle). 'Dose' of vibration is based on specific relations between duration of exposure and vibration magnitude defined in ISO standards [1,2], allowing the daily vibration exposure to be re-expressed in terms of the equivalent acceleration that would impart the same energy over an 8-hour reference period (a notional average working day). This is called the A (8 Health surveillance is required for workers who remain regularly exposed above the EAV. These values have been translated into guidelines based upon typical patterns of exposure. For example, use of hammer-action tools for >1 hour/day, or of some rotary-action tools for >2 hours/day regularly is likely to exceed the ELV for HTV and the EAV may be breached by as little as 15 minutes/day of exposure to certain hammer-action tools [5]. (Some employers employ a 'traffic light' labelling syste...

show abstract

Low Back Pain in Port Machinery Operators

Cited by 106 publications

References 31 publications

Influence of Support Conditions on Vertical Whole-body Vibration of the Seated Human Body

Influence of Support Conditions on Vertical Whole-body Vibration of the Seated Human Body

Energy Absorption of Seated Occupants Exposed to Horizontal Vibration and Role of Back Support Condition

Rheumatic effects of vibration at work

Contact Info

Product

Resources

About