The effects of standing foot-transmitted vibration on self-reported discomfort ratings.

Work Pub Date : 2024-04-16 DOI:10.3233/wor-230491
K. Goggins, Taryn J. Thompson, Courtney E. Lessel, Elizabeth A. Kelly, Dawson E.L. O’Hara, Tammy R. Eger
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Abstract

BACKGROUND Occupational foot-transmitted vibration (FTV) exposure is common in industries like mining, construction, and agriculture, often leading to acute and chronic injuries. Vibration assessments require technical expertise and equipment which can be costly for employers to perform. Alternatively, researchers have observed that self-reported discomfort can be used as an effective indicator of injury risk. OBJECTIVE This study aimed to investigate the effect of standing FTV exposure on self-reported ratings of discomfort, and whether these subjective ratings differed by body area and exposure frequency. METHODS Participants (n = 30) were randomly exposed to standing FTV at six frequencies (25, 30, 35, 40, 45, and 50 Hz) for 20-45 seconds. Following each exposure, participants rated discomfort on a scale of 0-9 in four body areas: head and neck (HN), upper body (UB), lower body (LB), and total body. RESULTS Results indicated that participants experienced the most discomfort in the LB at higher frequencies (p <  0.001), consistent with the resonance of foot structures. The HN discomfort tended to decrease as the exposure frequency increased, although not statistically significant (p >  0.0167). The UB discomfort remained relatively low across all frequencies. CONCLUSIONS The study suggests a potential connection between resonant frequencies and discomfort, potentially indicating injury risk. Although self-reported discomfort is insufficient for directly assessing injury risk from FTV, it provides a simple method for monitoring potential musculoskeletal risks related to vibration exposure at resonant frequencies. While professional vibration assessment remains necessary, self-reported discomfort may act as an early indicated of vibration-induced injuries, aiding in implementing mitigation strategies.
站立时脚底传来的振动对自我报告的不适感评级的影响。
背景职业性足部传递振动(FTV)暴露在采矿、建筑和农业等行业很常见,通常会导致急性和慢性损伤。振动评估需要专业技术和设备,雇主进行评估的成本可能很高。本研究旨在调查站立式 FTV 暴露对自我报告的不适感评级的影响,以及这些主观评级是否会因身体部位和暴露频率的不同而有所差异。方法将参与者(n = 30)随机暴露于六种频率(25、30、35、40、45 和 50 赫兹)的站立式 FTV 中 20-45 秒。每次暴露后,参与者按 0-9 分对四个身体部位的不适感进行评分:头颈部(HN)、上半身(UB)、下半身(LB)和全身。结果表明,频率越高,参与者在下半身的不适感越强(p < 0.001),这与足部结构的共振相一致。随着暴露频率的增加,HN 的不适感呈下降趋势,但无统计学意义(p > 0.0167)。结论:该研究表明,共振频率与不适感之间存在潜在联系,可能表明存在受伤风险。虽然自我报告的不适感不足以直接评估全频电视的伤害风险,但它为监测与共振频率下的振动暴露相关的潜在肌肉骨骼风险提供了一种简单的方法。虽然专业的振动评估仍有必要,但自我报告的不适感可作为振动诱发伤害的早期信号,有助于实施缓解策略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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