ASSESSMENT OF PHYSIOLOGICAL WORKLOAD OF WORKERS DURING THE PROCESS OF OPENING THE BOTTOM HATCHES OF A GONDOLA (SEMI-OPEN) RAILWAY WAGON

ASSESSMENT OF PHYSIOLOGICAL WORKLOAD OF WORKERS DURING THE PROCESS OF OPENING THE BOTTOM HATCHES OF A GONDOLA (SEMI-OPEN) RAILWAY WAGON

Authors

  • Toshtemirov Inomjon Muqimjonovich
  • Yusupov Azizjon Kahramonovich

DOI:

https://doi.org/10.5281/zenodo.18858927

Keywords:

physiological workload, work severity, open-top freight wagon, bottom hatch, trestle, ergonomics

Abstract

In this article, the worker’s physiological workload during the process of opening the lower hatches of semiopen
rail freight wagons located on an elevated track was assessed on the basis of sanitary and hygienic standards. In
particular, taking into account dynamic and static muscle strain, awkward working posture, the height factor, and repetitive
exertion, the worker’s physiological workload was determined for two hatch-opening methods: opening from ground level
and opening while positioned on an overpass. Based on the analyses performed, scientific conclusions were formulated
that work carried out on the overpass is characterized by higher physiological strain due to a greater share of static load,
and that ergonomic optimization and mechanization of working conditions are necessary

Author Biographies

Toshtemirov Inomjon Muqimjonovich

Researcher, Department of Railway Operations Management
Tashkent State Transport University

Yusupov Azizjon Kahramonovich

Associate Professor, Department of Railway Operations Management,
Tashkent State Transport University


References

Bernstein N.A. Essays on the Physiology of Movements and the Physiology of Activity. – Moscow: Meditsina, 1966.

– 349 p.

Chaffin D.B., Andersson G.B.J., Martin B.J. Occupational Biomechanics. – 4th ed. – Hoboken: John Wiley & Sons,

– 560 p.

Grandjean E. Fitting the Task to the Human: A Textbook of Occupational Ergonomics. – 4th ed. – London: Taylor &

Francis, 1988. – 363 p.

Bridger R.S. Introduction to Ergonomics. – 3rd ed. – Boca Raton: CRC Press, 2009. – 568 p.

Medvedev V.I. Physiology of Labor. – Moscow: Meditsina, 1982. – 312 p.

GOST 12.1.005-88. Occupational Safety Standards System. General sanitary-hygienic requirements for working zone

air. – Moscow: Standards Publishing House, 1988.

World Health Organization. Occupational Health: Stress at the Workplace and Physical Workload. – Geneva: WHO

Press, 2010.

International Labour Organization (ILO). Ergonomic Checkpoints: Practical and Easy-to-Implement Solutions for

Improving Safety, Health and Working Conditions. – Geneva: ILO, 2010.

Sanitary Rules and Norms (SanPiN) of the Republic of Uzbekistan. Hygienic assessment criteria for physical workload

in workplaces. – Tashkent.

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Published

2026-02-01

How to Cite

Toshtemirov, I., & Yusupov, A. (2026). ASSESSMENT OF PHYSIOLOGICAL WORKLOAD OF WORKERS DURING THE PROCESS OF OPENING THE BOTTOM HATCHES OF A GONDOLA (SEMI-OPEN) RAILWAY WAGON. Innovation Science and Technology, 2(2). https://doi.org/10.5281/zenodo.18858927
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