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All Journal G-Tech : Jurnal Teknologi Terapan
Yifrans Sastra Wiguna
Institut Teknologi Kalimantan, Indonesia
Computer Science & IT Decision Sciences, Operations Research & Management Energy Engineering

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Footrest Design in Achieving an Ergonomic Sitting Posture Anis Rohmana Malik; Tito Bisma May Wilis; Novita Lizza Anggraini; Athaya Nur Khayyirah; Archangela Adelina; Yifrans Sastra Wiguna
G-Tech: Jurnal Teknologi Terapan Vol 9 No 4 (2025): G-Tech, Vol. 9 No. 4 October 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v9i4.8108

Abstract

Ergonomic problems, particularly postural disorders resulting from prolonged sitting, are prevalent among workers involved in administrative tasks, computer operations, and public communication activities. Extended sitting durations can cause physical fatigue, impaired blood circulation, and discomfort in the lower back and legs, which may eventually lead to decreased work efficiency and musculoskeletal complaints. This study aims to develop an ergonomic footrest equipped with adjustable features based on users’ anthropometric dimensions to improve comfort and prevent postural strain. Data were collected from 60 office workers, including measurements of sitting height, lower leg length, foot width, and other dimensions related to foot positioning while seated, using standard anthropometric instruments such as an anthropometer, measuring tape, and caliper. Data adequacy and uniformity tests were performed to ensure reliability and consistency, and percentile analysis was applied as a basis for design parameters. The final design resulted in a footrest height of 51.85 cm derived from sitting popliteal height, accommodating 95% of users for optimal posture; a width of 30 cm based on sitting popliteal width; and a length of 50.99 cm based on foot length, ensuring full foot support. The proposed ergonomic footrest design is expected to minimize the risk of postural disorders, enhance user comfort, and support overall workplace health and productivity.
Procedural Controls Associated with OSH Culture among Heavy Equipment and Lifting Workers at PT XYZ, Balikpapan Yifrans Sastra Wiguna; Anis Rohmana Malik; Aulia Rahma
G-Tech: Jurnal Teknologi Terapan Vol 10 No 3 (2026): G-Tech, Vol. 10 No. 3 July 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i3.10374

Abstract

Occupational safety and health (OSH) culture is essential in heavy-equipment and lifting services because safe performance depends on consistent procedural control, communication, and worker participation. This study examined factors associated with OSH culture among all 55 active workers of PT XYZ, representing operational units involved in transportation, lifting, and heavy-equipment services in PT XYZ. A quantitative cross-sectional design was applied using a structured four-point Likert-scale questionnaire. Data were analyzed through descriptive statistics, chi-square tests, and exploratory logistic regression. Overall, 63.6% of workers were categorized as having a good OSH culture. Age, gender, education level, and work tenure were not significantly associated with OSH culture, whereas work unit, worker involvement, OSH knowledge, PPE compliance, management commitment, OSH rules and procedures, leadership, teamwork, and work environment showed significant bivariate associations. In the final regression model, OSH rules and procedures showed the strongest association with good OSH culture (p < 0.001; OR = 136.00; 95% CI = 14.05–1,315.98). Because the model showed sparse-data instability, this result is interpreted as an exploratory association rather than causal proof. The findings support procedural strengthening through SOP monitoring, practical lifting training, direct supervision, discipline, and standardized crane communication.
Co-Authors Anis Rohmana Malik Archangela Adelina Athaya Nur Khayyirah Aulia Rahma Novita Lizza Anggraini Willis, Tito Bisma May