Analysis of Physical Workload and Work Fatigue Among Irrigation and Fertilization Workers using Physiological Methods and the Swedish Occupational Fatigue Index

Juwa Saputri; Cut Ita  Erliana; Bakhtiar Bakhtiar

Juwa Saputri Departement of Industrial Engginering, Faculty of Industrial, Malikussaleh University, Aceh, Indonesia
Cut Ita Erliana Departement of Industrial Engginering, Faculty of Industrial, Malikussaleh University, Aceh, Indonesia
Bakhtiar Departement of Industrial Engginering, Faculty of Industrial, Malikussaleh University, Aceh, Indonesia

Keywords: Work Fatigue, Physical Endurance, Fresh Fruit Bunches, Swedish Occupational Fatigue Index, Workload Management

Abstract

in completing tasks. High workloads can lead to increased fatigue among workers at PT. Simpang Kiri Plantation Indonesia, which operates in the palm oil plantation sector. This study aims to analyze the level of fatigue experienced by workers involved in loading Fresh Fruit Bunches (FFB) using physiological methods and the Swedish Occupational Fatigue Index (SOFI).Workers are required to perform under demanding physical conditions, with an average lifting load of 15-30 kg per load. The analysis results indicate that the workers' fatigue level falls within the moderate category, with a percentage of 100%. The highest dimension of fatigue is found in sleepiness, with a score of 10, followed by physical exertion with a score of 6.5. Additionally, lack of motivation and physical discomfort each have scores of 6.5 and 5.8, respectively, while lack of energy is recorded at the lowest value of 5.5.These findings provide important insights for improving work techniques and managing workloads within the company, as well as serving as a reference for further research aimed at reducing work fatigue.

References

Abbaszadeh, R., Ahmadi, F., Khoobi, M., Kazemnejad, A., & Vaismoradi, M. (2025). Contributors to fatigue among nurses working in critical care units: A qualitative study. Nursing in critical care, 30(2), e13091. https://doi.org/10.1111/nicc.13091

Adam, L. (2020). Cultivating Power: Buitenzorg Botanic Garden and Empire-Building in the Netherlands East Indies, 1745-1917 (Doctoral dissertation, Northwestern University).

Altieri, M. A. (2002). Agroecology: the science of natural resource management for poor farmers in marginal environments. Agriculture, ecosystems & environment, 93(1-3), 1-24. https://doi.org/10.1016/S0167-8809(02)00085-3

Asnan, N. M., Azizan, A., Saili, A. R., Yusuf, S. W., Syahlan, S., Francis, F., ... & Youlla, D. (2024, September). Exploring the challenges faced by the harvester in oil palm plantation in Semporna, Sabah; A qualitative study. In IOP Conference Series: Earth and Environmental Science (Vol. 1397, No. 1, p. 012031). IOP Publishing. http://dx.doi.org/10.1088/1755-1315/1397/1/012031

Ayompe, L. M., Schaafsma, M., & Egoh, B. N. (2021). Towards sustainable palm oil production: The positive and negative impacts on ecosystem services and human wellbeing. Journal of cleaner production, 278, 123914. https://doi.org/10.1016/j.jclepro.2020.123914

Basiron, Y. (2007). Palm oil production through sustainable plantations. European Journal of Lipid Science and Technology, 109(4), 289-295. https://doi.org/10.1002/ejlt.200600223

Berek, N. C., Ruliati, L. P., Ndun, H. J., & Nabuasa, D. J. (2022). The Influence of Workload, Work Fatigue, and Work Behavior on Work Accidents for Female Workers in Informal Sectors in Kupang City. Jurnal Ergonomi Indonesia Vol, 8(1). http://dx.doi.org/10.24843/JEI.2022.v08.i01.p04

Celsa Julia Pujatari, Dayal Gustopo, E. A. (2021). Penilaian Beban Fisik Pada Proses Produksi Menggunakan Metode Fisiologis (Studi Kasus Pada Pekerja Packaging Home Industry Ganesa). Jurnal Valtech, 4(2), 134–140. https://ejournal.itn.ac.id/index.php/valtech/article/view/3839

Escallón-Barrios, M., Castillo-Gomez, D., Leal, J., Montenegro, C., & Medaglia, A. L. (2022). Improving harvesting operations in an oil palm plantation. Annals of operations research, 314(2), 411-449. https://link.springer.com/article/10.1007/s10479-020-03686-6

Fan, J., & Smith, A. P. (2017, June). The impact of workload and fatigue on performance. In International symposium on human mental workload: Models and applications (pp. 90-105). Cham: Springer International Publishing. http://dx.doi.org/10.1007/978-3-319-61061-0_6

Hayami, Y. (2010). Plantations agriculture. Handbook of agricultural economics, 4, 3305-3322.

Hirawan, F. B. (2011). The impact of palm oil plantations on Indonesia’s rural economy. Agricultural development, trade and regional cooperation in developing East Asia, 66.

Lerman, S. E., Eskin, E., Flower, D. J., George, E. C., Gerson, B., Hartenbaum, N., ... & Moore-Ede, M. (2012). Fatigue risk management in the workplace. Journal of occupational and environmental medicine, 54(2), 231-258. https://doi.org/10.1097/jom.0b013e318247a3b0

Lesmana, R. J., Setyadi, D., Mintarti, S., Lestari, D., & Adhimursandi, D. (2025). The Impact of Organizational Culture and Transformational Leadership on Job Stress and Burnout in Oil Palm Plantation Companies: Moderating Role of Job Demands and Coworker Trust in Paser Regency, Indonesia. WSEAS Transactions on Business and Economics, 22, 907-925. http://dx.doi.org/10.37394/23207.2025.22.77

Lestari, P. F., Muis, M., Thamrin, Y., Naiem, F., Saleh, L. M., & Arifin, M. A. (2024). Impact of Work Climate, Workload, and Stress on Fatigue for Improving Health and Work Outcomes. Integrative Biomedical Research, 8(10), 1-6. https://doi.org/10.25163/angiotherapy.8109972

Luke, S. H., Purnomo, D., Advento, A. D., Aryawan, A. A. K., Naim, M., Pikstein, R. N., ... & Turner, E. C. (2019). Effects of understory vegetation management on plant communities in oil palm plantations in Sumatra, Indonesia. Frontiers in Forests and Global Change, 2, 33. http://dx.doi.org/10.3389/ffgc.2019.00033

MacDonald, W. (2003). The impact of job demands and workload on stress and fatigue. Australian psychologist, 38(2), 102-117. https://psycnet.apa.org/doi/10.1080/00050060310001707107

Ng, Y. G., Bahri, M. T. S., Syah, M. Y. I., Mori, I., & Hashim, Z. (2013). Ergonomics observation: Harvesting tasks at oil palm plantation. Journal of occupational health, 55(5), 405-414. https://doi.org/10.1539/joh.13-0017-fs

O’Neill, C., & Panuwatwanich, K. (2013). The impact of fatigue on labour productivity: case study of dam construction project in Queensland. In EPPM 2013. Sirindhorn International Institute of Technology.

Obidzinski, K., Dermawan, A., & Hadianto, A. (2014). Oil palm plantation investments in Indonesia’s forest frontiers: limited economic multipliers and uncertain benefits for local communities. Environment, development and sustainability, 16(6), 1177-1196. https://doi.org/10.1007/s10668-014-9519-8

Purba, M. N., & Isa, M. A. M. (2024). The Role of Organizational Culture in Predicting Work Performance on Company Performance of Palm Oil Companies in Indonesia. International Journal of Entrepreneurship and Business Management, 3(1), 1-11. http://dx.doi.org/10.54099/ijebm.v3i1.763

Rahmasari, N. P., Wibowo, P. A., Abidin, Z., & Ramadhanityas, K. N. (2024). The Relationship of Workload and Job Stress with Work Fatigue in Factory Employees. Journal La Medihealtico, 5(4), 732-741. https://doi.org/10.37899/journallamedihealtico.v5i4.1483

Ricci, J. A., Chee, E., Lorandeau, A. L., & Berger, J. (2007). Fatigue in the US workforce: prevalence and implications for lost productive work time. Journal of occupational and environmental medicine, 49(1), 1-10. https://doi.org/10.1097/01.jom.0000249782.60321.2a

Rose, D. M., Seidler, A., Nübling, M., Latza, U., Brähler, E., Klein, E. M., ... & Beutel, M. E. (2017). Associations of fatigue to work-related stress, mental and physical health in an employed community sample. BMC psychiatry, 17(1), 167. https://doi.org/10.1186/s12888-017-1237-y

Sarbena, Y., & Sofiyanurriyanti. (2021). Analisis Tingkat Kelelahan Pada Pekerja Produksi Aspal Menggunakan Metode Swedish Occupational Fatigue Index (SOFI) DI PT. Wirataco Mitra Mulia. SITEKIN: Jurnal Sains, Teknologi Dan Industri, 19(01), 123–128.

Sharma, K., Sharma, C., Sharma, S., & Asenso, E. (2022). Broadening the research pathways in smart agriculture: predictive analysis using semiautomatic information modeling. Journal of Sensors, 2022(1), 5442865. https://doi.org/10.1155/2022/5442865

Souchet, A. D., Lourdeaux, D., Pagani, A., & Rebenitsch, L. (2023). A narrative review of immersive virtual reality’s ergonomics and risks at the workplace: cybersickness, visual fatigue, muscular fatigue, acute stress, and mental overload. Virtual Reality, 27(1), 19-50. http://dx.doi.org/10.1007/s10055-022-00672-0

Supriyadi, T., Sulistiasih, S., Rahmi, K. H., Pramono, B., & Fahrudin, A. (2025). The Impact Of Digital Fatigue On Employee Productivity And Well-Being: A Scoping Literature Review. Environment And Social Psychology, 10(2). http://dx.doi.org/10.59429/esp.v10i2.3420

Suryaningsih, A., Kristanti, D., & Nugroho, T. B. (2023). Expansion of Oil Palm Plantations: PT Agrapana Wukir Panca Social, Economic and Environmental Issues (Case Study of Pelalawan District, Riau). Journal of Social Science, 4(1), 184-195. https://doi.org/10.46799/jss.v4i1.513

Syahza, A. (2019). The potential of environmental impact as a result of the development of palm oil plantation. Management of Environmental Quality: An International Journal, 30(5), 1072-1094. http://dx.doi.org/10.1108/MEQ-11-2018-0190

Thaddeus, D. J., Bakri, M. A. M., Khalid, M. R. M., Ahmad, M. R., Azaman, M. I. H., Mustaffa, N. K., ... & Ramli, A. S. (2023). An overview of the benefits and advantages of implementing mechanisation in the oil palm plantation: a look at fresh fruit bunch (FFB) evacuation. Advances in Agricultural and Food Research Journal, 4(2). https://doi.org/10.36877/aafrj.a0000411

Vaintrub, M. O., Levit, H., Chincarini, M., Fusaro, I., Giammarco, M., & Vignola, G. (2021). Precision livestock farming, automats and new technologies: Possible applications in extensive dairy sheep farming. Animal, 15(3), 100143. http://dx.doi.org/10.1016/j.animal.2020.100143

Xiong, Q., Luo, F., Chen, Y., Duan, Y., Huang, J., Liu, H., ... & Li, R. (2024). Factors influencing fatigue, mental workload and burnout among Chinese health care workers during public emergencies: an online cross-sectional study. BMC nursing, 23(1), 428. https://doi.org/10.1186/s12912-024-02070-0

Ye, J. (2015). Land Transfer and the Pursuit of Agricultural Modernization in C hina. Journal of agrarian change, 15(3), 314-337. https://doi.org/10.1111/joac.12117

Yogisutanti, G., Aditya, H., & Sihombing, R. (2020, February). Relationship between work stress, age, length of working and subjective fatigue among workers in production department of textiles factory. In 4th International Symposium on Health Research (ISHR 2019) (pp. 70-73). Atlantis Press. http://dx.doi.org/10.2991/ahsr.k.200215.014