A review of the effects of vibration on visual acuity and continuous manual control, part II: Continuous manual control

Lewis, Clark H.; Griffin, Michael J.

doi:10.1016/s0022-460x(78)80156-4

Cited by 48 publications

(32 citation statements)

References 24 publications

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“…The results supported previous studies that have shown a progressive reduction in task performance with vibration (Lewis and Griffin, 1978). For both lateral and fore-andaft postures manual dexterity performance was reduced with each increase in vibration magnitude and the extent to which performance was affected increased with increasing vibration magnitude (Figure 2).…”

Section: Discussionsupporting

confidence: 90%

“…The effects of multiple axis vibration have been found to be similar to the effect of single axis vibration corresponding to the root sum of squares (r.s.s) of the magnitudes in each axis (Lewis and Griffin, 1978). This method is commonly termed r.s.s.…”

Section: Discussionmentioning

confidence: 99%

“…Participants were exposed to a control condition (no vibration) and nine different random vibration stimuli (Table 1) band-limited up to 4Hz. The greatest effect on performance in the xand y-axes has been found within the range 1-3Hz (Lewis and Griffin, 1978).…”

Section: Vibrationmentioning

confidence: 95%

“…WBV has been shown to impair performance of tasks requiring visual acuity and manual control (Lewis and Griffin, 1978). In terms of horizontal vibration Griffin and Hayward (1994) showed that a reduction in reading performance occurred for vibration magnitudes of 1.0ms -2 r.m.s.…”

Section: Introductionmentioning

confidence: 99%

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Effects of horizontal whole-body vibration and standing posture on activity interference

Baker

Mansfield

2010

Ergonomics

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Standing people are exposed to whole-body vibration in many environments. This paper investigates the effects of horizontal whole-body vibration and standing posture on task performance. Sixteen participants were exposed to random vibration (up to 4Hz), whilst performing a timed pegboard task in two standing postures. Objective and subjective indicators of performance were used. Time taken to complete the task increased progressively with increases in vibration magnitude; the fore-and-aft posture generally showed greater performance decrements and postural interruptions (>1.0ms -2 r.m.s.) than the lateral. For both postures, performance was better during yaxis vibration than during x-axis vibration. Subjective ratings showed similar trends to time data. Impairments due to dual axis exposure were well predicted using r.s.s.summation calculations based on single axis components. These results indicate that best performance for those standing in moving environments will be achieved if individuals adopt a lateral posture with the most severe vibration in the y-axis.2 Statement of relevancePeople have a need to work during transportation either working for the transport provider or as a passenger. All modes of transport result in travellers being exposed to horizontal motion. This study demonstrates that task disturbance is affected by the orientation of the standing person to the vibration and therefore vehicle layouts can be optimised.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: Vibrationmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

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Effects of horizontal whole-body vibration and standing posture on activity interference

Baker

Mansfield

2010

Ergonomics

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“…Participants were exposed to one of four bands of band-limited random oscillations, vertical whole-body vibration: control (no motion), 2-8 Hz, [8][9][10][11][12][13][14] Hz and 14-20 Hz all at an unweighted vibration magnitude of 2.0 ms −2 r.m.s. The waveforms were generated using broadband random signal and band-limiting filters.…”

Section: Designmentioning

confidence: 99%

The influence of seat backrest angle on human performance during whole-body vibration

et al. 2011

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This study investigated the effects of reclined backrest angles on cognitive and psychomotor tasks during exposure to vertical whole-body vibration. Twenty participants were each exposed to three test stimuli of vertical vibration: 2-8 Hz; 8-14 Hz and 14-20 Hz, plus a stationary control condition whilst seated on a vibration platform at five backrest angles: 0° (recumbent, supine) to 90° (upright). The vibration magnitude was 2.0 ms −2 root-mean-square. The participants were seated at one of the backrest angles and exposed to each of the three vibration stimuli while performing a tracking and choice reaction time tasks; then they completed the NASA-TLX workload scales. Apart from 22.5° seat backrest angle for the tracking task, backrest angle did not adversely affect the performance during vibration. However, participants required increased effort to maintain performance during vibration relative to the stationary condition. These results suggest that undertaking tasks in an environment with vibration could increase workload and risk earlier onset of fatigue. Practitioner SummaryCurrent vibration standards provide guidance for assessing exposures for seated, standing and recumbent positions, but not for semi-recumbent postures. This paper reports new experimental data systematically investigating the effect of backrest angle on human performance. It demonstrates how workload is elevated with whole-body vibration, without getting affected by backrest angle. PADDAN, G.S. ... et al., 2012. The influence of seat backrest angle on human performance during whole-body vibration. Ergonomics, 55 (1), pp. 114 -128.

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Human Operator Under Vibration and Shock

Karnovsky¹,

Lebed²

2016

Theory of Vibration Protection

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A review of the effects of vibration on visual acuity and continuous manual control, part II: Continuous manual control

Cited by 48 publications

References 24 publications

Effects of horizontal whole-body vibration and standing posture on activity interference

Effects of horizontal whole-body vibration and standing posture on activity interference

The influence of seat backrest angle on human performance during whole-body vibration

Human Operator Under Vibration and Shock

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