Ergonomic Hazards in Agriculture: How Bending and Long Hours Take a Toll on Farmers' Backs

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New research from Universitas Kristen Indonesia reveals that over 84% of farmers in Cisampih Village, Sumedang, West Java, experience low back pain linked to demanding physical postures and extended working hours. Published in the International Journal of National and Health Sciences in 2026, the investigation was conducted by Wendy Hendrika, Vidi Posdo A. Simarmata, Kezia Martina Sinaga, and Febtusia Puspitasari. The findings highlight critical occupational health challenges in rural farming communities, emphasizing the urgent need for targeted ergonomic interventions.

Background and Methodology

Agricultural labor routinely involves physically demanding tasks such as planting, lifting, carrying, and repetitive hoeing. Globally, low back pain remains a major occupational health concern for agricultural workers across various income levels.

To evaluate these risks locally, researchers conducted an analytical observational study with a cross-sectional design in Cisampih Village between July and September 2024. Out of 55 initial participants, three farmers with specific preexisting medical conditions—such as osteoporosis, kyphosis, lordosis, and rheumatic disease—were excluded, leaving 52 participants for the final analysis. Data was collected using closed questionnaires and direct observations, examining demographic details, daily work duration, bending angles, and hoeing frequencies. Researchers utilized chi-square tests to analyze bivariate associations between physical exposures and reported back pain.

Key Findings

The study uncovered a high prevalence of discomfort among agricultural workers in the region:

  • High Pain Prevalence: Out of the 52 analyzed farmers, 44 participants (84.6%) reported experiencing low back pain. Furthermore, 94.2% reported pain specifically while farming, and 90.4% reported discomfort when bending.
  • Impact of Bending Posture: A statistically significant association was established between bending angles and low back pain ($p = 0.002$). Farmers who maintained a trunk flexion of greater than 60 degrees reported a higher incidence of pain.
  • Daily Work Duration: Work duration was also significantly associated with pain ($p = 0.038$). Notably, all 14 farmers who worked more than nine hours per day reported experiencing low back pain.
  • Physical Exertion: Every single participant reported engaging in repetitive hoeing and standing for more than two hours daily, with over 53% reporting heavy lifting.

Real-World Implications and Industry Impact

The insights from Universitas Kristen Indonesia carry vital implications for occupational health planners, agricultural policymakers, and rural communities. Because farming heavily relies on manual labor, chronic physical strain can reduce productivity, diminish workers' quality of life, and increase healthcare burdens.

To mitigate these risks, industry stakeholders and local health services are encouraged to introduce practical ergonomic strategies. Recommended measures include providing tools matched to workers' physical dimensions, scheduling mandatory rest breaks, limiting sustained trunk flexion, and promoting task rotation throughout the workday.

"Local health services and agricultural stakeholders can consider ergonomic assessment and education tailored to farm tasks, including tool dimensions, task variation, and planned breaks," the authors noted.

Author Profile

  • Wendy Hendrika holds an academic degree and serves as a researcher and lecturer in the Department of Public Health at Universitas Kristen Indonesia, with expertise in occupational health and ergonomic safety.
  • Vidi Posdo A. Simarmata holds an academic degree and is a faculty member at Universitas Kristen Indonesia specializing in public health and community medicine.
  • Kezia Martina Sinaga holds an academic degree and is a researcher at Universitas Kristen Indonesia focusing on occupational health and environmental safety.
  • Febtusia Puspitasari holds an academic degree and is a researcher at Universitas Kristen Indonesia specializing in health sciences and worker welfare.

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