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81.
不同接振作业工人情感状态的变化 总被引:2,自引:0,他引:2
目的 探讨不同接振作业工人情感状态的变化。方法 应用 POMS量表对 30名磨光作业工人及 40名金矿井下凿岩机工及其对照组 (4 0名及 2 0名 )进行了调查分析。结果 与各自对照组比较 ,磨光组在疲倦 -惰性 ,紧张 -焦虑 ,愤怒-敌意等方面的积分明显增高 (P <0 .0 5 ,P <0 .0 1) ;而凿岩组在疲倦 -惰性 ,有力 -好动 ,紧张 -焦虑 ,愤怒 -敌意 ,忧郁 -沮丧方面有明显差异 (P <0 .0 5 ,P <0 .0 1) ;与凿岩组相比磨光组在疲劳 -惰性 ,愤怒 -敌意等方面有明显差异 (P <0 .0 1) ,而忧郁 -沮丧的积分明显下降 (P <0 .0 1) ,且多在工作后数年内发生。结论 不同工种的接振作业可造成工人不同的情绪状态的改变 ,这种变化可能是一种较好的振动性神经病的早期诊断指标。 相似文献
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砂轮磨光作业工人首发症状出现时间及其与振动性白指的关系 总被引:5,自引:0,他引:5
砂轮磨光作业工人首发症状出现时间及其与振动性白指的关系林立张强张春之杨汝景聂继池王林振动性白指(Vibration-inducedwhitefinger,VWF)的发生,除与振动参量、寒冷、噪声等因素有关外,还与接振时间有密切关系[1]。但VWF的潜... 相似文献
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Objective To study the combined effect of low temperature and vibration on function of peripheral circulation and nerve.Methods 64 rabbits were divided into control group,low temperature group,vibration group and combined effect group randomly,16 each group.The changes of concentration of ET,Ang Ⅱ,NO in plasma and SCV,amplitude of sensory nerve action potential,latency of sensory nerve action potential,MCV,distal amplitude of motor nerve,and distal latency of motor nerve were measured before and after experiment.Results After experiment,the concentration of ET,Ang Ⅱ,NO and SCV,amplitude of sensory nerve action potential,latency of sensory nerve action potential,MCV,distal amplitude of motor nerve,and distal latency of motor nerve were (68.84±14.81) pg/ml,(544.01±70.20) pg/ml,(123.73±9.58) nmol/ml,(25.36±6.96) m/s,(1.84±0.65) μV,(4.05±1.04) m/s,(27.40±6.05) m/s,(1.60±0.52) μV,(3.51±1.30) m/s respectively in low temperature group;(70.22±15.02) pg/ml,(540.77±68.25) pg/ml,(129.46±11.99) nmol/ml,(27.69±6.16) m/s,(2.19±0.53)μV,(3.86±0.89) m/s,(30.03±5.21) m/s,(1.65±0.49)μV,(3.36±1.11)m/s respectively in vibration group;(88.47±13.20) pg/ml,(687.38±101.44) pg/ml,(70.66±4.99) nmol/ml,(20.82±3.65)m/s,(1.21±0.64)μV,(5.05±0.94) m/s,(19.97±4.37) m/s,(1.09±0.49)μV,(4.49±1.26) m/s respectively in eombined effect group;compared with pre-experiment,the concentration of ET and Ang Ⅱ in low temperature group,vibration group and combined effect group were increased after experiment,and the NO was decreased (P<0.05);the nerve conduct velocity and amplitude was decreased and the latency was delayed (P<0.05).After experiment,the concentrations of ET and Ang Ⅱ in combined effect group were higher than low temperature group and vibration group,and the concentration of NO in combined effect group was lower than low temperature group and vibration group(P<0.05).After experiment,the SCV and MCV in combined effect group were slower than low temperature group and vibration group;the amplitude of sensory nerve action potential and distal amplitude of moor nerve were less than low temperature group and vibration group;the latency of sensory nerve action potential and distal latency of motor nerve in combined effect group was longer than low temperature group and vibration group.The factorial analysis results indicated the synergistic effect between low temperature and vibration(P<0.05).Conclusion Vibration-induced peripheral vascular impairment and nerve impairment would be intensified by low temperature. 相似文献
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对不同接振时间的 64名煤矿掘进工进行了血浆血栓素B2 (TXB2 )和 6 酮 前列腺素F1α (6 keto PGF1α)浓度的测定。结果显示各个接振时间段TXB2 浓度均高于对照组 ,并随接振时间的延长增高更明显 (P <0 0 1) ;各个接振时间段 6 keto PGF1α与对照组比较有降低趋势 ,并随接振时间的延长降低更明显 (P <0 0 1)。这种改变可能与振动性血管损伤有一定联系。 相似文献
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振动性神经病一经提出就引起手臂振动病研究者的浓厚兴趣,已成为研究热点。本文对近年来有关振动性神经病流行病学调查及其诊断、发病机制和检查方法进行综述。为研究振动对中枢和外周神经损伤的机制、完善振动性神经损伤的诊断指标提供参考资料。 相似文献
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目的 探讨局部振动对血浆内皮素浓度的影响。方法 对不同接振时间、不同接振强度和家兔进行了血浆内皮素的测定与分析。结果 随接振时间的延长和接振剂量的增大,血浆内皮素浓度有升高的趋势,振动实验后各实验组血浆内皮素浓度均高于对照组(P〈0.05,P〈0.01)。结论 局部振动可致家兔血浆内皮素浓度的增高。 相似文献
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手部红外图像结合冷水试验对周围循环功能的评价 总被引:5,自引:0,他引:5
目的 研究手传振动对周围循环功能的影响及其评价方法。方法 振动作业工人37 名( 接振组) ,非接振健康工人30 名( 对照组) ,在冷水负荷前后,用KY333 型远红外摄像仪进行手部红外摄像,对图像进行对比分析。结果 冷试前两组工人手部红外图像差异无显著性;冷水试验后手部红外图像变化显著,接振组手指皮肤温度下降,复温时间延长。结论 手部红外摄像结合冷水负荷试验可以评价周围循环机能障碍的早期变化 相似文献
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目的探讨低温对小鼠运动能力及抗疲劳能力的影响。方法按不同低温暴露时间,将小鼠随机分为A低温组、B低温组和C低温组。各组在低温试验后进行负荷游泳试验和血清乳酸(LD)、血糖(BS)、血尿素氮(BUN)浓度和肌酸激酶(CK)活性的测定。结果与对照组比较,A低温组和C低温组小鼠负重游泳时间明显缩短、BS浓度显著下降、BUN和LD浓度显著升高、CK活性显著增高(P<0.05,P<0.01)。与A低温组比较,B低温组小鼠负重游泳时间延长、BS浓度升高、BUN和LD浓度下降、CK活性降低(P<0.05,P<0.01)。与B低温组比较,C低温组小鼠负重游泳时间缩短、BS浓度下降、BUN和LD浓度升高、CK活性增高(P<0.05,P<0.01)。结论低温可降低小鼠的运动能力和抗疲劳能力。 相似文献