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| 拖拉机驾驶员颈部疲劳的肌电评价 | |
| 引用本文： | 赵永超,孔德刚. 拖拉机驾驶员颈部疲劳的肌电评价[J]. 农业工程学报, 2010, 26(3): 146-150. DOI: 10.3969/j.issn.1002-6819.2010.03.025 |
| 作者姓名： | 赵永超 孔德刚 |
| 作者单位： | 东北农业大学工程学院,哈尔滨,150030 |
| 基金项目： | 黑龙江省教育厅海外学人资助项目（1153h02） |
| 摘 要： | 为了了解拖拉机驾驶员颈部疲劳状况，该文在模拟拖拉机倒车作业的基础上，对驾驶员颈部胸锁乳突肌的表面肌电信号进行了测试，选取积分肌电值、平均功率频率、小波分解系数等特征量对肌电信号进行时域、频域以及时频域分析。结果表明：拖拉机驾驶员颈部疲劳后胸锁乳突肌的积分肌电值、平均功率频率、小波分解系数都降低，疲劳前后各特征量存在显著性差异（P＜0.05），这些特征量都可以有效评价拖拉机驾驶员的颈部疲劳。 |
| 关 键 词： | 拖拉机，疲劳测试，肌电图学，积分肌电值，平均功率频率，小波分解系数 |
| 收稿时间： | 2009-04-30 |
| 修稿时间： | 2010-01-25 |
Evaluation of tractor drivers' neck fatigue by surface electromyogram |
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| Zhao Yongchao,Kong Degang. Evaluation of tractor drivers' neck fatigue by surface electromyogram[J]. Transactions of the Chinese Society of Agricultural Engineering, 2010, 26(3): 146-150. DOI: 10.3969/j.issn.1002-6819.2010.03.025 | |
| Authors: | Zhao Yongchao Kong Degang |
| Affiliation: | Engineering College/a>;Northeast Agricultural University/a>;Harbin 150030/a>;China |
| Abstract: | For understanding the fatigue situation of tractor drivers' neck muscle during operation, the electromyogram signal of sternocleidomastoid muscle was tested by simulating the process of reversing operation. Then analysis was conducted in time domain, frequency domain and time-frequency domain by using the index of integrated electromyogram, mean power frequency and wavelet decomposition coefficients. The results showed that the iEMG, MPF and wavelet decomposition coefficients had downward trend after tractor drivers' neck became fatigue. There is a significant difference of the iEMG, MPF and wavelet decomposition coefficients before and after fatigue, which can effectively evaluate the tractor drivers' neck fatigue. |
| Keywords: | tractors fatigue testing electromyography integrated electromyogram mean power frequency wavelet decomposition coefficient |
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