Publication Search

Low productivity and high sick leave in the weaving division of PT XYZ in Yogyakarta are caused by excessive physical and mental workload on Shuttle Loom Unit 2 operators. The productivity of the weaving division of PT XYZ was recorded at only 61.96% (target 75%) with sick leave of 4.17%, indicating operator fatigue. This study measured physical workload using the Cardiovascular Load (CVL) method based on heart rate and mental workload using NASA-TLX, and analyzed the correlation with age and length of service. The results showed a moderate physical workload category (40% light CVL <30, 60% moderate 30-60) at a temperature of 30.5°C, and high-very high mental workload (45% high 50-79, 55% very high ≥80, average EF 79.3) due to strict quality targets (0.5% defects). There is a correlation between CVL and NASA-TLX with age. Recommendations include reducing the daily production target from 100 to 85-88 yards, optimizing ergonomics, and training to reduce EF to 65 and defects to 0.3, to increase effective productivity.

MMP is a metal manufacturing company engaged in casting, forging, and machining processes with a three-shift work system, including night shifts that may increase mental and physical workload due to disruptions in workers’ biological rhythms. This study aims to analyze the mental and physical workload of die casting machine operators during the night shift and to propose improvement measures using the Fault Tree Analysis (FTA) method. The study involved 23 operators, with mental workload assessed using NASA-TLX and physical workload measured using CVL. The results indicate that mental workload falls into high to very high categories, with WWL values ranging from 46.6 to 97.3, where 12 operators experienced very high mental workload. The dominant contributing dimensions were effort, physical demand, and temporal demand. Meanwhile, physical workload ranged from 19.48% to 36.36% CVL, with most operators not experiencing fatigue. Although physical workload remains within acceptable limits, the high mental workload indicates the need for improvements. FTA analysis identified key contributing factors, including work methods, work systems, ergonomics, machine conditions, and the work environment. Proposed improvements include job rotation, improvements in work methods and task distribution, adjustments to the work system, enhanced machine maintenance, and ergonomics-based workplace improvements.

Lifting activities are an essential part of manual material handling across various industrial sectors and constitute a primary source of ergonomic risk exposure when performed with inappropriate work postures. The use of hands-off tools such as push-pull sticks is often implemented to maintain a safe distance between workers and loads and to reduce exposure to line-of-fire hazards. However, the implementation of work aids does not automatically ensure neutral work postures, as push-pull techniques, reach distances, and environmental conditions can still lead to awkward postures. This study aims to evaluate the work posture risk in lifting activities using a fiber-composite push-pull stick based on the Rapid Entire Body Assessment (REBA) method. The research was conducted as an observational analytic field study involving nine workers in tubular pushing and pulling activities. Work postures were documented through direct observation and visual recordings, then assessed using REBA to obtain risk scores, risk categories, and required corrective actions. The results indicate that work postures fall into the medium to high-risk categories, with trunk and shoulder components being the dominant contributors. These findings confirm the need for improvements in work methods, ergonomic training, and strengthening of lifting SOPs to optimize the safety and ergonomic benefits of work aids.

Low back pain (LBP) is one of the most common musculoskeletal complaints globally and is the main cause of decreased work productivity. One of the risk factors that has been widely studied in the literature is prolonged sitting duration. Prolonged sitting activities cause increased static pressure on the lumbar spine, fatigue of the supporting muscles, as well as a decrease in local blood flow that can trigger chronic pain. This study is a literature review with a meta-analytical approach that aims to analyze the relationship between long-term sitting and the incidence of LBP. The review process was carried out following PRISMA guidelines through searches on PubMed, Scopus, ScienceDirect, and Google Scholar databases for publication in 2020–2025. Of the 20 previous studies analyzed, most showed a positive association between sitting time and an increased risk of LBP, both in adults, adolescents, and children. Sitting for more than 6 hours per day increases the risk of LBP by 33%, especially in individuals with low physical activity. In addition, longer sitting durations with poor posture and minimal active rest were found in the group of office workers and professional drivers who had a high prevalence of LBP. Physical activity has been shown to play a protective role against the risk of LBP, while ergonomic interventions such as lumbar support can reduce pain complaints. Although most studies were observational, the consistency of results supports the importance of prevention through reduced sitting time, increased physical activity, and ergonomic work environment settings. These findings provide a scientific basis for multidimensional interventions to effectively reduce the incidence of LBP.  

Musculoskeletal Disorders (MSDs) complaints in muscles, joints, and soft tissues can be caused by poor posture, repetitive movements, and excessive physical load. In the wet cake-making industry, workers often sit or stand for long periods, bend, and perform monotonous hand movements, which increases the risk of MSDs. The impact includes decreased work comfort, productivity, and quality of life. This study aims to assess the ergonomic risk level in wet cake-making workers and identify the relationship between work activities and MSD complaints. The method used is descriptive quantitative research with a cross-sectional design, involving 45 workers at Kue X Silaberanti. Ergonomic risk was assessed using the REBA method, while MSD complaints were measured using the Nordic Body Map questionnaire. The results show that in the mixing process, 58.8% of workers experienced a very high risk of MSDs. In the molding and baking processes, 52.9% and 68.8% of workers, respectively, were at high risk. The most frequent complaints were pain in the back, neck, shoulders, arms, and wrists due to poor posture and repetitive movements. To reduce the risk of MSDs, workers need to improve their posture, use ergonomic aids, rotate tasks, and undergo training in safe working techniques.

Ironing activities in the laundry service industry are performed repeatedly and for long periods, creating a high potential for non-ergonomic work postures. At Laundry Cio’ta, ironing is carried out every day from 08:00 to 21:00 by two workers, which increases the risk of fatigue and musculoskeletal disorders due to continuous and repetitive movements. This study aims to analyze workers’ ironing postures using the REBA method to determine the level of ergonomic risk. Data were collected through direct observation and measurement of body posture angles during the ironing process. The assessment results showed a Score A of 4 and a Score B of 2, producing an initial REBA score of 4. With the addition of an activity score of +1, considering the repetitive nature of the task, the final REBA score increased to 5. This score indicates a moderate level of risk, suggesting that corrective actions are necessary to prevent long-term strain or injury. Based on these findings, ergonomic improvements such as adjusting the ironing table height, modifying the work layout, and encouraging workers to adopt better posture are recommended. Implementing short rest breaks and task variation can also help reduce physical strain and improve worker comfort and productivity.

The rapid development of the digital era has led to a major shift in the modern workplace, with over 1.5 billion people spending more than six hours daily in front of computer screens. This working condition poses significant occupational health risks, including Musculoskeletal Disorders (MSDs) such as Low Back Pain (LBP) and neck strain, with a global prevalence of 60-80%. Furthermore, prolonged screen exposure and high workload contribute to mental health issues like chronic stress and digital fatigue. This community service aimed to increase awareness among PT. XYZ employees regarding the importance of integrated ergonomics to achieve optimal productivity. The method used was an informative sharing session through a presentation and discussion. The material emphasized a three-pronged intervention approach: physical ergonomics (workstation adjustment), technology-based interventions (wearable devices, break reminder apps, and electromagnetic radiation prevention), and mental well-being integration (mindfulness and relaxation techniques). The results showed a significant increase in participant understanding of the health risks and the practical steps to implement integrated ergonomic solutions. It was found that combining technology-based reminders and mindfulness exercises can reduce health complaints by up to 40% better than physical interventions alone. The implication of this service is the recommendation for PT. XYZ to adopt an integrated ergonomic policy that addresses physical, technological, and mental aspects to create a healthier, safer, and more productive work environment for its employees.

Research at Diponegoro University found that 66.7% of 63 respondents experienced neck pain due to using a laptop for more than 4 hours. Prolonged laptop use can negatively impact health from an ergonomic perspective, as the recommended maximum usage is 2 hours per day. However, students often maintain non-ergonomic positions for extended periods. This study aimed to determine the relationship between laptop use and neck pain among Diploma Three Nursing Students at Abulyatama University, Aceh. The research utilized an analytical, cross-sectional design, with a population of 556 students and a sample of 85 students, selected through purposive random sampling. The research was conducted at Abulyatama University from May 15 to June 2, 2025, and data was collected using a questionnaire with a Numeric Rating Scale. Analysis involved both univariate and bivariate methods using the Chi-Square test. The results showed that among 85 respondents, 44 (95.7%) experienced moderate pain, 8 (40.0%) had mild pain, and 8 (42.1%) reported severe pain. Statistical analysis indicated a significant correlation (p=0.000) between laptop use and neck pain. In conclusion, there is a strong relationship between laptop use and complaints of neck pain among university students. The research is expected to raise student awareness about the health risks associated with prolonged and improper laptop use, encourage better posture, and serve as a reference about limiting laptop use and improving ergonomics.

Work activities in workshops often require static and repetitive body positions, such as bending over, lifting heavy loads, or reaching into narrow areas of vehicles. These habits can gradually cause muscle tension and lead to neck and lower back pain. Given the high risk, physiotherapy counseling on occupational safety and health (OSH) and ergonomics was conducted to provide practical understanding to B-Garage, Batu City workshop workers. The counseling was delivered interactively through material presentations, direct discussions, and demonstrations of stretching exercises that can be easily applied in daily activities. The results of the activity showed a very significant increase in knowledge; participants who initially did not understand the principles of ergonomics and musculoskeletal pain prevention were able to identify work risks and practice stretching exercises correctly after the education session. This change was clearly evident from the post-test results, which showed a significant overall improvement compared to the pre-test. These findings indicate that physical therapy education not only enhances knowledge but also promotes behavioral changes toward safer, more comfortable, and more productive work patterns.

Museums are essential for preserving culture and history, especially in cities like Jakarta, which have a history that spans from prehistoric times to modern times. The Fatahillah Museum in Jakarta is the best place to learn history because it has a collection of artifacts, important documents, and thematic exhibitions. The museum is not only a center for education, but it also helps to promote local culture through various activities such as workshops and seminars. The main challenge to improving the visitor experience is poor layout and circulation of the space. The way visitors enjoy the collections on display in the museum is greatly influenced by the layout, including the way the space is arranged. The Fatahillah Museum uses a hub-and-spoke and linear layout to direct visitors in a systematic way. But there are some problems, such as limited space, unergonomic collections and a poor navigation system. The space is filled with unique but sometimes confusing vertical and horizontal circulation grooves due to the architectural style of colonial Dutch museums. Factors such as visibility, lighting, and ergonomics also play a role in improving visitor comfort. With over 615,000 visitors in 2023, this problem is becoming more apparent, especially during busy holidays. To address this, the layout must be optimized, modern navigation is used, and the design of the exhibition hall must be updated to become more interactive and help students learn. In addition, arranging the collection chronologically and thematically can help visitors understand the historical and cultural context of the museum's collections.

Introduction Shoulder pain is one of the most common complaints of Musculoskeletal Disorders (MSDs) experienced by workers due to non-ergonomic working postures, repetitive movements, and excessive workloads. This condition can reduce productivity and overall quality of life. Objective To increase restaurant workers’ knowledge about shoulder pain prevention through ergonomic education and simple stretching exercises that can be performed independently. Methods A descriptive observational study was conducted involving 20 kitchen workers at Potre Koneng Restaurant. The program consisted of permission procedures, workplace observation, questionnaire distribution, and health education using a leaflet. The educational material included the definition of shoulder pain, signs and symptoms, risk factors, preventive measures, and simple stretching techniques. Results The Form revealed that most workers experienced shoulder pain related to bending postures, lifting loads >5 kg, and limited rest breaks. Following the education session, participants demonstrated improved understanding of proper working posture and the importance of regular stretching, and expressed willingness to practice it during work breaks. Conclusion Ergonomic education and stretching exercises were effective in improving awareness of shoulder pain prevention among informal sector workers. Similar programs are recommended as promotive and preventive measures in high-risk workplaces.

The Nurul Ikhlas Mosque, also known as Surau Parak Mujua, located in Pakan Akek, Jorong Kajai, Nagari Koto Baru, Solok Regency, is an important center of religious and social activities for the local community. In June 2023, the mosque suffered a major fire that destroyed the entire structure, creating an urgent need to redesign it to be more functional, ergonomic, efficient, and adaptable to local conditions. This community service project aimed to produce an architectural design that not only met structural and functional needs but also accommodated the social aspirations and cultural values of the local community. The methods used in this project included field observations to understand the community's conditions and needs, participatory discussions with local community leaders to explore aspirations and hopes, technical drawings using AutoCAD software, and structural analysis using ETABS to ensure the building's earthquake resistance. Ergonomics were a key consideration in this design, encompassing circulation flow, room dimensions, natural ventilation, and the selection of materials that were friendly and safe for the elderly, children, and people with disabilities. The output of this activity is a variety of design documents, including floor plans, elevations, building sections, floor plans, columns and beams, and 3D visualizations that can be used as a guide for phased construction. This program demonstrates the importance of collaboration between universities and the community in responding to post-disaster infrastructure needs. This knowledge-based, participatory approach is expected to produce a final design that is appropriate to real needs and the local context, and supports better and more sustainable post-disaster recovery.

Sewing workers at CV Cahaya Setia Mulia Abadi perform static and repetitive tasks, such as prolonged sitting in a bent posture and continuous sewing movements. These conditions lead to various physical complaints, including back pain (78%), lower neck pain (75%), upper neck discomfort (73%), as well as shoulder fatigue, wrist tingling, and lower back stiffness. This research is conducted to evaluate the potential risk of musculoskeletal disorders (MSDs) through the application of the Rapid Entire Body Assessment (REBA) method, determine the body parts most frequently affected using the Nordic Body Map (NBM) questionnaire, and develop posture correction strategies based on anthropometric measurements.The REBA results indicate that most sewing activities fall into the medium-risk category (score 5–7), with some in the high-risk category (score 8). The intervention involved adjusting chair dimensions based on anthropometry, and adding seat cushions and backrests. After the simulation of improvements, the REBA score decreased to 2, placing it in the low-risk category. These findings demonstrate that ergonomic chair design and proper working posture significantly reduce physical strain, increase comfort, and help maintain worker productivity. This study offers practical recommendations for creating a healthier and safer work environment in the manufacturing sector.

Low Back Pain (LBP) is one of the most common musculoskeletal problems experienced by people in various age groups and work backgrounds. This complaint can be acute, subacute, or chronic, with various causes ranging from mechanical, degenerative, to psychosocial factors. This study aims to examine the characteristics of LBP through a literature review of several previous studies that focus on prevalence, risk factors, and their impact on patients' daily lives. The method used is a narrative literature review, with data sources coming from national and international journals, research reports, and academic repositories. The results of the study show that the prevalence of LBP is very high, with a significant percentage of occurrence in the elderly, pregnant women, administrative workers, and individuals with a sedentary lifestyle and non-ergonomic work posture. In addition to age, female gender, non-ideal body mass index, and long work duration, it was also found that psychosocial characteristics such as low social support and high work pressure play a role in triggering or worsening LBP. A study at Ibnu Sina Hospital Makassar showed that most LBP patients were elderly women with acute pain and radiological results showed lumbar spondylosis as the most common diagnosis. The conclusion of this study emphasizes the importance of prevention through ergonomic education, work stress management, and early intervention based on a healthy lifestyle. These findings are expected to be the basis for designing promotive and preventive strategies for high-risk groups.

Physical work environment and work discipline are important to improve performance. managing the physical work environment is to create optimal conditions for employees to work comfortably, efficiently and productively, while the application of work discipline in the organization is to create a structured and productive work environment by ensuring that all employees comply with the policies, procedures and standards set by has been set. This research examines the influence of the physical work environment, work discipline, and employee performance at Solo Swalayan. The physical work environment includes factors such as work space comfort, lighting, ventilation, and ergonomics, while work discipline includes compliance with policies, rules, and procedures established by the company. Using quantitative methods, Multiple Linear Regression statistical data with Solo Swalayan employees as research objects. This research evaluates how these two variables affect overall employee performance. Based on the research results, it shows that the physical work environment and work discipline partially have a significant effect on employee performance. As well as the research results, physical work environment variables and work discipline simultaneously have a significant effect on the performance of Solo Swalayan employees.

Musculoskeletal Disorders (MSDs) encompassing conditions affecting muscles, bones, joints, ligaments, nerves, and tendons , are a prevalent occupational health issue, particularly in roles involving physical tasks like lifting, pushing, pulling, or carrying loads. This study aims to synthesize current scientific findings on the prevalence, contributing risk factors, and effective prevention strategies for MSDs in manual handling contexts. A systematic literature search was conducted using Google Scholar, focusing on peer-reviewed journal articles published between January 2020 and June 2025. The review identified a consistently high prevalence of MSDs, with the lower back, shoulders, neck, and upper extremities being the most commonly affected areas. Key risk factors are multifactorial, including physical/ergonomic aspects (e.g., awkward postures, heavy loads, repetitive motions, prolonged exposure, vibration) , individual factors (e.g., age, BMI, injury history) , psychosocial factors (e.g., high job demands, low job control, stress) , and organizational/manegerial factors (e.g., inadequate training, poor workstation design). The findings underscore the necessity of a holistic and integrated approach to manage MSDs.  

Work in the informal sector, such as weaving, has high health risks due to the repetitive nature and static positions required. Weavers often experience Musculoskeletal Disorders (MSDs) due to sitting too long in front of the loom for about 8 hours. This condition causes muscle contractions in the shoulders and neck, reduces blood flow, and causes pain and fatigue. A study of two sarong weaving industries in Dalangan Village found that 70% of 10 workers complained of low back pain. Many workers work with non-ergonomic positions and inappropriate equipment. Improvements in work attitudes are needed so that workers' health and productivity are maintained. This study aims to determine the relationship between work attitudes and MSDs disorders in the central craftsmen of the weaving industry. This research is a quantitative study using observational analysis method with cross sectional approach. The population was 35 from 4 locations with a sample of 35 respondents taken using total sampling technique. Assessment for work attitudes using the Rapid Entire Body Assessment (REBA) and for Musculoskeletal Disorders (MSDs) experienced using the Nordic Body Map (NBM). The results of the Spearman correlation test showed no significant relationship between work attitudes and musculoskeletal complaints with a p-value = 0.261 (p < 0.05) and a correlation coefficient value of r = 0.195 which is included in a weak correlation with a positive direction. The study shows there is no significant relationship between work attitude and musculoskeletal disorders in weaving industry workers. Routine ergonomics education is recommended to prevent complaints and maintain sustainable occupational health.

Low back pain (LBP) is one of the most common musculoskeletal problems experienced by workers, especially those in professions that require prolonged static sitting, such as public transportation drivers. This condition not only impacts work productivity but can also disrupt daily activities and increase the risk of chronic health problems. This study aims to analyze factors associated with the incidence of LBP in public transportation drivers on the Latuhalat route at Mardika Terminal, Ambon City. The study design used an observational analytical approach with a cross-sectional approach. The study population consisted of 96 public transportation drivers, and 51 were selected as samples through a purposive sampling technique based on inclusion criteria. The independent variables in this study included driving position, driving duration, age, and length of service, while the dependent variable was low back pain. Data were collected using questionnaires and observation sheets, then analyzed using the Chi-square test. The results showed that all independent variables, namely driving position, driving duration, age, and length of service, had a significant relationship with the incidence of LBP (p < 0.05). Thus, ergonomic factors and workload significantly contribute to the occurrence of NPB in public transportation drivers. Therefore, ergonomic interventions, proportional work hour arrangements, and the implementation of occupational health programs are important steps in reducing the risk of NPB in drivers.

Abstract Beam Stacking is an educational game tool that facilitates playing while learning. So this game makes it easier for children in the learning process. Analysis of biomechanical ergonomics and work psychology on building block educational game tools includes selecting the size and shape of blocks that are suitable for children, not dangerous for children, and playing methods that are able to improve children's fine motor skills, with narrative qualitative research, based on the results of observations of educational game tools. Beam Stacking; played by BKB PAUD An-Nur children. The body movements produced in playing with building blocks are dynamic movements, in the playing environment sitting on the floor with a mat and statistical movements, in the playing environment sitting in a chair with the game tools on the table. Where the moving fingers, wrists, hands, head and back can train the movement skills of both hands, hand-eye coordination, and improve children's physical and mental performance in learning activities at BKB PAUD An-Nur. Supervision and in-depth direction from the teacher when children play is the prevention of injuries when playing with Beam Stacking. Keywords: Beam Stacking, Biomechanics, Ergonomics, Work Psychology Abstrak Balok Susun adalah salah satu alat permainan edukatif yang memfasilitasi bermain sambil belajar.. Sehingga permainan ini memberi kemudahan kepada anak dalam proses pembelajaran. Analisis ergonomi biomekanik dan psikologi kerja pada alat permainan edukatif balok susun meliputi pemilihan ukuran dan bentuk balok yang sesuai untuk anak, tidak berbahaya bagi anak, dan metode bermain yang mampu meningkatkan kemampuan motrik halus anak, dengan penelitian kualitatif naratif, didasari hasil observasi alat permainan edukatif balok susun yang dimainkan oleh anak-anak BKB PAUD An- Nur. Gerak tubuh yang dihasilkan dalam bermain balok susun adalah gerak dinamis, pada lingkungan bermain duduk dilantai dengan alas tikar dan gerak statis, pada lingkungan bermain duduk dikursi dengan alat permainan diatas meja. Dimana jari-jari tangan, pergelangan tangan, tangan, kepala, dan punggung, yang bergerak dapat melatih keterampilan gerak kedua tangan, koordinasi indera mata dengan tangan, dan meningkatkan kinerja fisik dan mental anak dalam aktivitas pembelajaran di BKB PAUD An-Nur. Pengawasan serta pengarahan yang mendalam dari guru saat anak bermain, merupakan pencegahan cidera permainan balok susun. Kata Kunci : Balok Susun, Biomekanik, Ergonomi, Psikologi Kerja

Neck pain is a common musculoskeletal complaint among workers due to non-ergonomic work postures and long working hours. PT. Pantjamitra Ichigodjaja has a work environment that poses a risk of neck muscle strain due to static work positions and working hours exceeding 8 hours per day. This study aims to evaluate the effectiveness of education through leaflet distribution in improving employees' knowledge about neck pain, including its causes, prevention, and management. This research used a descriptive quantitative design with an intervention method in the form of distributing educational leaflets to 50 employees selected using a purposive sampling technique. Data collection was conducted through pre-test and post-test using a validated and reliable questionnaire. The results showed an increase in employee knowledge after receiving the leaflet, with the percentage of good knowledge increasing from 20% in the pre-test to 60% in the post-test. The average increase in knowledge score reached 40%, indicating that education through leaflets is effective in improving employees' understanding of neck pain. The conclusion of this study is that education using leaflets can increase employee awareness and knowledge about the importance of ergonomic work posture and muscle stretching to prevent neck pain. The study suggests that the company should continue the education program periodically and improve workplace ergonomics to reduce the risk of neck pain among employees.