Introduction: Work-related musculoskeletal disorders (WRMSDs) are a public health problem and have forced many workers to quit their jobs prematurely. This study investigated the prevalence and risk factors of WRMSDs ...Introduction: Work-related musculoskeletal disorders (WRMSDs) are a public health problem and have forced many workers to quit their jobs prematurely. This study investigated the prevalence and risk factors of WRMSDs among Healthcare workers in five reference hospitals in the City of Douala-Cameroon. Methods: A cross-sectional study was conducted in 2022 among 561 healthcare workers working in five reference hospitals in the city of Douala, Cameroon. Participants were selected using a convenient sampling technique. Data were collected with structured questionnaires;data on the demographics and risk factors were collected using a well-designed questionnaire, while estimation of the prevalence of WRMSDs was done using the Modified Nordic questionnaire. Results: The overall prevalence rate of WRMSDs among healthcare workers in Douala hospitals was 83.4% (468/561). The prevalence per professional groups was as follows: 88.8% (71) for Medical Laboratory Scientists (MLS), 81.9% (289) for nurses, 21 (80.8%) for Physiotherapists (PTs) and 78.8% (41) for Medical Doctors (MDs). There was a significant difference (p = 0.001) in the prevalence of WRMSDs with respect to place of work where healthcare workers from HLD recorded the highest prevalence 89.9%, while Healthcare workers from NBDH were 2.91 times at risk (AOR = 2.91;95% CI: 1.32 - 6.41;p = 0.001) to develop WRMSDs than healthcare workers in the other hospitals. With respect to body region, the highest prevalence of WRMSDs was recorded on the lower back, 58.8% with the lowest at the elbows 11.2%. The age group 30 to 39 years was significantly associated with WRMSDs at level of the shoulder (p = 0.002), upper back (p = 0.019), elbows (p Conclusion: The overall prevalence rate of WRMSDs among healthcare workers in Douala hospitals was high. The prevalence of WRMSDs is highest among MLS and nurses and the most affected body parts are;lower back, neck and upper back. Working on the same posture, stressful job, and repetitive tasks were the major risk factors associated to WRMSDs among healthcare workers in Douala hospitals.展开更多
目的为了解间歇拉物行走作业条件下拉力降幅特征,避免肌肉疲劳累积,降低工作相关肌肉骨骼损伤(WMSDs)风险,设计并组织间歇拉物行走试验。方法招募8名大学男生和11名大学女生进行试验,测量工休比为1,30 kg和40 kg 2种负荷、1 km/h和2 km/...目的为了解间歇拉物行走作业条件下拉力降幅特征,避免肌肉疲劳累积,降低工作相关肌肉骨骼损伤(WMSDs)风险,设计并组织间歇拉物行走试验。方法招募8名大学男生和11名大学女生进行试验,测量工休比为1,30 kg和40 kg 2种负荷、1 km/h和2 km/h 2种行走速度条件下的拉力值和主观疲劳评分(RPE),然后运用统计学方法分析性别、负荷以及行走速度对拉力值、拉力降幅、相对拉力降幅和RPE的影响。结果性别显著影响拉力降幅,40 kg负荷下拉力降幅更快,速度对拉力降幅影响不显著,不同负荷间RPE差异显著,但不同性别和速度间RPE差异不显著。结论间歇拉物行走作业条件下,男女拉力差异显著且男性抗疲劳能力更强,负荷显著影响拉力降幅,但速度影响不显著,拉物行走作业中行走速度2m/s优于1m/s。展开更多
Objective To assess the risk factors for upper extremity-work-related musculoskeletal disorders（UE-WMSD） on 13 prod ucti on lines in an airbag factory using the threshold limit values-American conference of industri...Objective To assess the risk factors for upper extremity-work-related musculoskeletal disorders（UE-WMSD） on 13 prod ucti on lines in an airbag factory using the threshold limit values-American conference of industrial hygienists-hand activity level（TLV-ACGIH-HAL） method and introduce the ergonomic improvement to reduce the repe titi veness and the peak force（Pf）.Methods Professional exposure level on 13 production lines in a automobile factory was measured using the TLV-ACGIH-HAL method and a further risk was assessed according to the ergonomic improvement.Results The first assessment of 9 produc tion lines showed that the professional exposure level was above the TLV or HAL limit.The second assessment showed that the professional exposure level was below the AL limit on all production lines except 1,in which the professional exposure level was between TLV and HAL.Conclusion The assessment of UE-WMSD-related risk can ide ntif y the riskiest emplacements and evaluate the reduc tion of risk in professional exposure through interventi ons of structuralorganizati onal type.展开更多
文摘Introduction: Work-related musculoskeletal disorders (WRMSDs) are a public health problem and have forced many workers to quit their jobs prematurely. This study investigated the prevalence and risk factors of WRMSDs among Healthcare workers in five reference hospitals in the City of Douala-Cameroon. Methods: A cross-sectional study was conducted in 2022 among 561 healthcare workers working in five reference hospitals in the city of Douala, Cameroon. Participants were selected using a convenient sampling technique. Data were collected with structured questionnaires;data on the demographics and risk factors were collected using a well-designed questionnaire, while estimation of the prevalence of WRMSDs was done using the Modified Nordic questionnaire. Results: The overall prevalence rate of WRMSDs among healthcare workers in Douala hospitals was 83.4% (468/561). The prevalence per professional groups was as follows: 88.8% (71) for Medical Laboratory Scientists (MLS), 81.9% (289) for nurses, 21 (80.8%) for Physiotherapists (PTs) and 78.8% (41) for Medical Doctors (MDs). There was a significant difference (p = 0.001) in the prevalence of WRMSDs with respect to place of work where healthcare workers from HLD recorded the highest prevalence 89.9%, while Healthcare workers from NBDH were 2.91 times at risk (AOR = 2.91;95% CI: 1.32 - 6.41;p = 0.001) to develop WRMSDs than healthcare workers in the other hospitals. With respect to body region, the highest prevalence of WRMSDs was recorded on the lower back, 58.8% with the lowest at the elbows 11.2%. The age group 30 to 39 years was significantly associated with WRMSDs at level of the shoulder (p = 0.002), upper back (p = 0.019), elbows (p Conclusion: The overall prevalence rate of WRMSDs among healthcare workers in Douala hospitals was high. The prevalence of WRMSDs is highest among MLS and nurses and the most affected body parts are;lower back, neck and upper back. Working on the same posture, stressful job, and repetitive tasks were the major risk factors associated to WRMSDs among healthcare workers in Douala hospitals.
文摘目的为了解间歇拉物行走作业条件下拉力降幅特征,避免肌肉疲劳累积,降低工作相关肌肉骨骼损伤(WMSDs)风险,设计并组织间歇拉物行走试验。方法招募8名大学男生和11名大学女生进行试验,测量工休比为1,30 kg和40 kg 2种负荷、1 km/h和2 km/h 2种行走速度条件下的拉力值和主观疲劳评分(RPE),然后运用统计学方法分析性别、负荷以及行走速度对拉力值、拉力降幅、相对拉力降幅和RPE的影响。结果性别显著影响拉力降幅,40 kg负荷下拉力降幅更快,速度对拉力降幅影响不显著,不同负荷间RPE差异显著,但不同性别和速度间RPE差异不显著。结论间歇拉物行走作业条件下,男女拉力差异显著且男性抗疲劳能力更强,负荷显著影响拉力降幅,但速度影响不显著,拉物行走作业中行走速度2m/s优于1m/s。
文摘Objective To assess the risk factors for upper extremity-work-related musculoskeletal disorders（UE-WMSD） on 13 prod ucti on lines in an airbag factory using the threshold limit values-American conference of industrial hygienists-hand activity level（TLV-ACGIH-HAL） method and introduce the ergonomic improvement to reduce the repe titi veness and the peak force（Pf）.Methods Professional exposure level on 13 production lines in a automobile factory was measured using the TLV-ACGIH-HAL method and a further risk was assessed according to the ergonomic improvement.Results The first assessment of 9 produc tion lines showed that the professional exposure level was above the TLV or HAL limit.The second assessment showed that the professional exposure level was below the AL limit on all production lines except 1,in which the professional exposure level was between TLV and HAL.Conclusion The assessment of UE-WMSD-related risk can ide ntif y the riskiest emplacements and evaluate the reduc tion of risk in professional exposure through interventi ons of structuralorganizati onal type.
