Evaluation of reaction time performance and subjective drowsiness during whole-body vibration exposure

Azizan, Mohd Amzar; Zali, Z; Padil, H

doi:10.1088/1757-899x/370/1/012020

Cited by 5 publications

(4 citation statements)

References 13 publications

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“…Our results are consistent with findings of similar studies reporting that occupational WBV exposure generally yields decrements in reaction time or cognitive outcomes [ 20 , 42–45 ]. These effects seem to emerge largely following shorter, lower amplitude exposures at frequency patterns outside occupational WBV exposure patterns of machinery, within the frequency range of 4.1 to 5 Hz [ 8 , 26 ].…”

Section: Discussionsupporting

confidence: 93%

“…These effects seem to emerge largely following shorter, lower amplitude exposures at frequency patterns outside occupational WBV exposure patterns of machinery, within the frequency range of 4.1 to 5 Hz [ 8 , 26 ]. The WBV exposure conditions and reaction time outcomes in the present study, are most aligned with work reporting reaction time increases ranging from 5% [ 43 ] to 25% [ 42 ], placing our findings of an increase in reaction time of ∼10% after sitting or walking rest break activities within reasonable confidence. This seems to suggest that differing effects on cognitive performance reported in this study are not by random chance, but rather a product of different exposures stimulating certain mechanistic pathways.…”

Section: Discussionsupporting

confidence: 83%

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The effect of selected rest break activities on reaction time, balance, and perceived discomfort after one hour of simulated occupational whole-body vibration exposure in healthy adults

Burnett,

Tweten,

Okpalauwaekwe

et al. 2023

Annals of Medicine

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Background & Objective : Negative health effects from occupational whole-body vibration (WBV) exposure during machinery operation include alterations in proprioception, vestibular function, reaction time, stress, motor response, and decrements in musculoskeletal health. To reduce WBV exposure during machinery operation, it may be possible to incorporate short rest break activities throughout the day. This study aims to determine if there are intervention activities that can minimize decrements in cognitive, proprioceptive, and musculoskeletal effects related to WBV exposure during machine operation. Materials & Methods Eleven healthy adults participated in four 1-hour sessions of ecologically valid WBV exposure followed by one of four 5-minute activities: sitting, walking, 2 min of gaze stabilization exercise (GSE) coupled with 3 min of trunk mobility exercise (GSE + MOBIL), or 2 min of GSE coupled with a 3-minute walk (GSE + WALK). Baseline and post-activity measurements (rating of perceived discomfort, balance and postural sway measurements, 5-minute psychomotor vigilance task test) were submitted to a paired t-test to determine the effect of WBV exposure and activities on physical, cognitive, and sensorimotor systems and to a repeated measures ANOVA to determine any differences across activities. Results We observed degradation of the slowest 10% reaction speed outcomes between baseline and post-activity after walking (7.3%, p < 0.05) and sitting (8.6%, p < 0.05) but not after GSE + MOBIL or GSE + WALK activities. Slowest 10% reaction speed after GSE + MOBIL activity was faster than all other activities. The rating of perceived discomfort was higher after SIT and WALK activities. There were no notable differences in balance outcomes. Conclusion When compared to sitting for 5 min, an activity including GSE and an active component, such as walking or trunk mobility exercises, resulted in maintenance of reaction time after WBV exposure. If confirmed in occupational environments, GSE may provide a simple, rapid, effective, and inexpensive means to protect against decrements in reaction time after WBV exposure.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 83%

The effect of selected rest break activities on reaction time, balance, and perceived discomfort after one hour of simulated occupational whole-body vibration exposure in healthy adults

Burnett,

Tweten,

Okpalauwaekwe

et al. 2023

Annals of Medicine

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show abstract

“…Our findings differ from those reported by Azizan and colleagues [10,30], who observed an increase in lapses after 20 min of random whole-body vibration (WBV) exposure ranging from 1 to 15 Hz, with respect to the baseline condition. In contrast, our study did not find a statistically significant effect of FTV on lapses.…”

Section: Cognitive Effectscontrasting

confidence: 99%

“…= [7,34]), and 16 ms (p = 0.014, 95% C.I. = [2,30]), respectively). No significant differences were found when looking at the slowest reaction times or the number of lapses across the different conditions.…”

Section: Effect Of Trialmentioning

confidence: 99%

Alterations in Step Width and Reaction Times in Walking Subjects Exposed to Mediolateral Foot-Transmitted Vibration

Marrone,

Marelli,

Bertozzi

et al. 2024

Vibration

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This study explores how low-frequency foot-transmitted vibration (FTV) affects both gait parameters and cognitive performance. Twenty healthy male participants experienced harmonic mediolateral FTV (1.25 Hz, 1 m/s2) while either standing or walking on a treadmill. We assessed participants’ reaction times to visual stimuli using a psychomotor vigilance task (PVT) test under five conditions, including (i) baseline (standing still without vibration), (ii) vibration (standing still with vibration), (iii) walking (walking without vibration), (iv) walking with vibration, and (v) post-test (standing still without vibration after the tests). Additionally, the step width (SW) was measured with a camera system in conditions (iii) and (iv), i.e., when participants were walking with and without vibration and during PVT execution. The results showed that the average vigilance decreased, and the step width increased while walking and/or with vibration exposure. These findings suggest a potential connection between decreased vigilance, increased step width, and the need for enhanced stability, focusing on balance maintenance and a wider base of support. Implications for future standard revisions are presented and discussed.

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Psychomotor Vigilance Testing on Neonatal Transport: A Western Australian Experience

Wilson,

McDonald,

Cooper

et al. 2024

Air Medical Journal

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Evaluation of reaction time performance and subjective drowsiness during whole-body vibration exposure

Cited by 5 publications

References 13 publications

The effect of selected rest break activities on reaction time, balance, and perceived discomfort after one hour of simulated occupational whole-body vibration exposure in healthy adults

The effect of selected rest break activities on reaction time, balance, and perceived discomfort after one hour of simulated occupational whole-body vibration exposure in healthy adults

Alterations in Step Width and Reaction Times in Walking Subjects Exposed to Mediolateral Foot-Transmitted Vibration

Psychomotor Vigilance Testing on Neonatal Transport: A Western Australian Experience

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