在五种不同的组合模式下，同时暴露于声、热和体力负荷变化对生理参数的影响评估，一项对照实验室研究

IF 0.9 Q4 ACOUSTICS

Sound and Vibration Pub Date : 2020-01-01 DOI:10.32604/sv.2020.08810

Hossein Molaeifar, F. Khajehnasiri, Kiana Nikeghbal, Z. Zamanian

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引用次数: 1

摘要

暴露于声音、热量和增加的体力负荷会改变生理参数。本研究旨在评估在受控的实验室条件下，同时暴露于声、热和体力负荷变化对生理参数的影响。本实验横断面研究以35名平均年龄25.75岁、平均BMI为22.69 kg/m的男大学生为研究对象。在实验室休息15 min，实验开始后5 min和10 min，在实验室控制条件下20 min，采用5种组合方式测量收缩压和舒张压及心率。组合模式为(声音:65 dB, WBGT: 22°C，速度:1.7，坡度:10%)，(声音:65 dB, WBGT: 22°C，速度:3.4，坡度:14%)，(声音:95 dB, WBGT: 22°C，速度:1.7，坡度:10%)，(声音:65 dB, WBGT: 32°C，速度:1.7，坡度:10%)和(声音:95 dB, WBGT: 32°C，速度:3.4，坡度:14%)。采用混合模型分析和配对t检验进行分析。结果表明，不同组合模式(声音为65 ~ 95 dB, WBGT为22°C ~ 32°C，速度为1.7 ~ 3.4，坡度为10% ~ 14%，声音为95 dB, WBGT为32°C，速度为3.4，坡度为14%)恶化时，平均生理参数(收缩压、舒张压和心率)增加。此外，与参考条件(声音:65 dB, WBGT: 22°C，速度:1.7，坡度:10%)相比，所有条件下收缩压和舒张压的平均变化都很显著。除了暴露于第二种条件(声音:65 dB, WBGT: 22°C，速度:3.4，坡度:14%)和第三种条件(声音:95 dB, WBGT: 22°C，速度:1.7，坡度:10%)外，平均心率变化也很显著。暴露于危险水平的声音、热量和工作负荷对生理参数有不利影响。同时暴露于这三种危害具有协同效应，并增加了不利影响。

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Assessment of Effects of Concomitant Exposure to Sound, Heat, and Physical Workload Changes on Physiological Parameters in Five Different Combination Modes, a Controlled Laboratory Study

Exposure to sound, heat, and increased physical workload can change physiological parameters. This study was conducted to evaluate the effect of concomitant exposure to sound, heat, and physical workload changes on physiological parameters in controlled laboratory conditions. This experimental crosssectional study was conducted in 35 male university students with a mean age of 25.75 years and a mean BMI of 22.69 kg/m. Systolic and diastolic blood pressure and heart rate were measured after 15 min rest in the laboratory, 5 and 10 min after starting the experiment, and then after 20 min in controlled laboratory conditions in five combination modes. The combination modes were (Sound: 65 dB, WBGT: 22°C, Speed: 1.7, Slope: 10%), (Sound: 65 dB, WBGT: 22°C, Speed: 3.4, Slope: 14%), (Sound: 95 dB, WBGT: 22°C, Speed: 1.7, Slope: 10%), (Sound: 65 dB, WBGT: 32°C, Speed: 1.7, Slope: 10%), and (Sound: 95 dB, WBGT: 32°C, Speed: 3.4, Slope: 14%). Mixed model analysis and paired t-test were applied for analysis. The results showed that the mean physiological parameters (Systolic and diastolic blood pressure and heart rate) increased when different combination modes worsened (Sound from 65 to 95 dB, WBGT from 22°C to 32°C, speed from 1.7 to 3.4, and slope from 10% to 14%, and when sound: 95 dB, WBGT: 32°C, Speed: 3.4, and Slope: 14%). Moreover, the mean changes of systolic and diastolic blood pressure were significant in all conditions when compared with the reference condition (Sound: 65 dB, WBGT: 22°C, Speed: 1.7, and Slope: 10%). The mean heart rate changes were also significant except for exposure to the second condition (Sound: 65 dB, WBGT: 22°C, Speed: 3.4, Slope: 14%) and the third condition (Sound: 95 dB, WBGT: 22°C, Speed: 1.7, Slope: 10%). Exposure to hazardous levels of sound, heat, and workload has adverse effects on physiological parameters. Concomitant exposure to all three hazards has a synergistic effect and increases the adverse effect.

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来源期刊

Sound and Vibration 物理-工程：机械

CiteScore

1.50

自引率

33.30%

发文量

审稿时长

>12 weeks

期刊介绍： Sound & Vibration is a journal intended for individuals with broad-based interests in noise and vibration, dynamic measurements, structural analysis, computer-aided engineering, machinery reliability, and dynamic testing. The journal strives to publish referred papers reflecting the interests of research and practical engineering on any aspects of sound and vibration. Of particular interest are papers that report analytical, numerical and experimental methods of more relevance to practical applications. Papers are sought that contribute to the following general topics: -broad-based interests in noise and vibration- dynamic measurements- structural analysis- computer-aided engineering- machinery reliability- dynamic testing