An Analysis of Occupational Hazards Based on the Physical Ergonomics Dimension to Improve the Occupational Health of Agricultural Workers: The Case in Mayo Valley, Mexico
Abstract
:1. Introduction
2. Literature Review
3. Methodology
3.1. Sample Determination
3.2. Instrument Development and Validation
3.3. Statistical Method
4. Analysis of Results
4.1. Statistical and Cronbach’s Alpha Gender Analysis
4.2. KMO and Bartlett’s Tests
4.3. Extraction Method-Based PCA
5. Discussions
- Finding 1: The risk of handling objects and materials (PE5) was the only physical ergonomics variable present for agricultural workers of both genders based on the PCA. This finding is strongly related to several studies on musculoskeletal disorders and pain in agricultural male workers and postmenopausal agricultural female workers [52,53,54]. In addition, this physical ergonomics variable has a more significant impact in low- and middle-income countries [53].
- Finding 2: The risk of using inappropriate materials (PE9) was the only physical ergonomics variable that was not present (not as important) for agricultural workers of both genders based on the PCA. This is because the factorial coefficient was less than 0.5. In this case, the results showed that the use of fertilizers, pesticides, herbicides, irrigation systems, seedlings, seeds, and farm machinery did not represent a significant risk to agricultural workers. The above can be related to the care taken by companies concerning the general uses of materials and machinery in the Mayo Valley region [27,55,56].
- Finding 3: Concerning the physical ergonomics variable related to the risk of carrying heavy things (PE3), this variable was significant for male agricultural workers, while it was not significant for female agricultural workers. This does not mean that the variable PE3 is not present in the opinion of the agricultural workers, but that there are other more important variables. In fact, there is evidence that a significant percentage of women working in agriculture suffer from back pain, joint pain, and leg pain [32,57]. In this way, this finding must be contextualized to the Mayo Valley and not generalized worldwide. Perhaps the working conditions of agricultural women in this region have certain characteristics that result in a factorial component value of less than 0.5 for the physical ergonomics variable studied.
- Finding 4: It should be noted that, in terms of the relationship between the explained variable and the factorial loading, Table 6 shows the variability of the male agricultural workers concerning the factorial loading, with a mean value of μM = 70.21% and a standard deviation of σM = 2.47%. This implies a coefficient of variation (CV = σ/μ) of 3.51%, whereas, for female agricultural workers (according to Table 7), the mean is μF = 66.12% and the standard deviation is σF = 9.72%. This gives a coefficient of variation of 14.7%. In this way, it can be seen that the CV of female agricultural workers was significantly higher than that of male workers. The above could be interpreted as a significant difference in the perception of physical ergonomics risk factors by women.
6. Conclusions
6.1. Implications and Recommendations
6.2. Limitations
6.3. Future Research
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Gender | Frequency | % | Total |
---|---|---|---|
Women | 48 | 24 | 24% |
Men | 152 | 76 | 100% |
Total | 200 | 100 |
Parameters | Age Data |
---|---|
Mean: | 29.36 |
Median: | 28.00 |
Mode: | 25 |
Standard Deviation: | 6.734 |
Range: | 34 |
Minimum: | 18 |
Maximum: | 52 |
Percentiles: | |
25% | 25 |
50% | 28 |
75% | 34 |
Physical Ergonomics Variables | Cronbach’s Alpha by Gender | |
---|---|---|
PE1 | The risk of lifting heavy equipment | Men: 0.850 Women: 0.814 |
PE2 | The risk of physical effort | |
PE3 | The risk of carrying heavy things | |
PE4 | The risk of performing repetitive movements | |
PE5 | The risk in handling objects and materials | |
PE6 | The risk of working in uncomfortable postures | |
PE7 | The risk of repetitive activities | |
PE8 | The risk of stretching to reach an object or product | |
PE9 | The risk of using inappropriate materials |
Category (Men) | Age Range | Number | % | Total |
---|---|---|---|---|
1 | 18–29 | 83 | 54.61 | 54.61% |
2 | 30–39 | 55 | 36.18 | 90.79% |
3 | 40–52 | 14 | 9.21 | 100% |
Total: | 152 | |||
Category (Women) | Age Range | Number | % | Total |
1 | 18–29 | 28 | 58.33 | 58.33% |
2 | 30–39 | 20 | 41.67 | 100% |
Total: | 48 |
KMO and Bartlett’s Test | |||||
---|---|---|---|---|---|
Age Category (Men) | Kaiser-Meyer-Olkin Measure of Sampling Adequacy | Bartlett’s Test of Sphericity | |||
Approx. Chi-Square | gl | Sig. (p-Value) | |||
1 | 18–29 | 0.795 | 144.308 | 6 | 0.001 |
2 | 30–39 | 0.865 | 288.225 | 21 | 0.001 |
3 | 40–52 | 0.811 | 58.643 | 15 | 0.001 |
Age Category (Women) | Kaiser-Meyer-Olkin Measure of Sampling Adequacy | Bartlett’s Test of Sphericity | |||
Approx. Chi-Square | gl | Sig. (p-Value) | |||
1 | 18–29 | 0.735 | 55.133 | 10 | 0.001 |
2 | 30–39 | 0.808 | 43.879 | 10 | 0.001 |
Principal Component Analysis | |||
---|---|---|---|
Physical Ergonomics Risk Factors (Men) | (Category) Component | ||
18–29 | 30–39 | 40–52 | |
PE1 | 0.897 | 0.952 | --- |
PE2 | --- | 0.718 | --- |
PE3 | 0.854 | 0.870 | 0.832 |
PE4 | 0.812 | 0.827 | 0.871 |
PE5 | 0.762 | 0.808 | 0.922 |
PE6 | --- | 0.831 | 0.733 |
PE7 | --- | 0.757 | 0.878 |
PE8 | --- | --- | 0.877 |
PE9 | --- | --- | --- |
Total Variable Explained: | 69.35% | 68.29% | 73% |
Physical Ergonomics Risk Factors (Women) | (Category) Component | |
---|---|---|
18–29 | 30–39 | |
PE1 | 0.897 | 0.811 |
PE2 | --- | --- |
PE3 | --- | --- |
PE4 | 0.808 | --- |
PE5 | 0.711 | 0.828 |
PE6 | --- | 0.845 |
PE7 | 0.702 | 0.913 |
PE8 | 0.711 | 0.854 |
PE9 | --- | --- |
Total Variable Explained: | 59.21% | 73% |
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Ramos-García, V.M.; López-Leyva, J.A.; Balderrama-Carmona, A.P.; Ochoa-Vázquez, I.; García-Ochoa, J.J.; Espinoza-Espino, M.d.J. An Analysis of Occupational Hazards Based on the Physical Ergonomics Dimension to Improve the Occupational Health of Agricultural Workers: The Case in Mayo Valley, Mexico. Safety 2024, 10, 61. https://doi.org/10.3390/safety10030061
Ramos-García VM, López-Leyva JA, Balderrama-Carmona AP, Ochoa-Vázquez I, García-Ochoa JJ, Espinoza-Espino MdJ. An Analysis of Occupational Hazards Based on the Physical Ergonomics Dimension to Improve the Occupational Health of Agricultural Workers: The Case in Mayo Valley, Mexico. Safety. 2024; 10(3):61. https://doi.org/10.3390/safety10030061
Chicago/Turabian StyleRamos-García, Víctor Manuel, Josué Aarón López-Leyva, Ana Paola Balderrama-Carmona, Iván Ochoa-Vázquez, Juan José García-Ochoa, and Manuel de Jesús Espinoza-Espino. 2024. "An Analysis of Occupational Hazards Based on the Physical Ergonomics Dimension to Improve the Occupational Health of Agricultural Workers: The Case in Mayo Valley, Mexico" Safety 10, no. 3: 61. https://doi.org/10.3390/safety10030061
APA StyleRamos-García, V. M., López-Leyva, J. A., Balderrama-Carmona, A. P., Ochoa-Vázquez, I., García-Ochoa, J. J., & Espinoza-Espino, M. d. J. (2024). An Analysis of Occupational Hazards Based on the Physical Ergonomics Dimension to Improve the Occupational Health of Agricultural Workers: The Case in Mayo Valley, Mexico. Safety, 10(3), 61. https://doi.org/10.3390/safety10030061