A questionnaire-based musculoskeletal disorder assessment for aircraft maintenance technicians

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ebru Yazgan ◽  
Necmettin Firat Ozkan ◽  
Berna Haktanirlar Ulutas
Keyword(s):  
Environmental Factors ◽  
Working Conditions ◽  
Material Handling ◽  
Musculoskeletal Disorder ◽  
Aircraft Maintenance ◽  
Body Parts ◽  
Hand Tools ◽  
Content Type ◽  
Manual Material Handling ◽  
Fall Protection

Purpose Aircraft maintenance technician (AMT) is the most critical profession in the aircraft maintenance system. The tasks of a licensed AMT require expertise and involve repetitive physical tasks such as tightening or loosening aircraft parts, carrying or removing parts during long working hours under time pressure and day/night shifts. This study aims to attract attention to the difficult working conditions of AMTs and identify the body parts that are at risk of musculoskeletal disorder (MSD). Design/methodology/approach A questionnaire is developed by the authors to gather demographic information, use of hand tools, equipment, use of fall protection, manual material handling (lifting, pushing, pulling), load weight, environmental factors, and MSD discomfort level perceptions. The questionnaire is applied to 150 AMTs during six months period, and the obtained data are analyzed by sequential ordinal logistic regression (OLR) models. Findings The ORL results confirm that the use of equipment (lift platform, scissors lift), safety belt attached to the platform, manual material handling, environmental factors (humidity, vibration and illumination) and resting periods have a significant effect on MSD risks. On the contrary, age, experience level, use of small hand tools, temperature and noise are not identified as statistically significant. Originality/value The study is original for it considers the working conditions and perceived discomfort levels of AMTs. A questionnaire is introduced to assess the consequences of the use of tools, equipment, fall protection equipment, environmental conditions and work organization on various body parts (neck, shoulder, elbow, back, lower back, wrist-hand, hip, knee, and ankle-feet), and strain level is identified. The study contributes to the theoretical aircraft maintenance literature and managers in practice.

Evaluation of postural-assist exoskeleton for manual material handling

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Omobolanle Ogunseiju ◽  
Johnson Olayiwola ◽  
Abiola Akanmu ◽  
Oluwole Alfred Olatunji
Keyword(s):  
Range Of Motion ◽  
Material Handling ◽  
The Body ◽  
Task Completion ◽  
New Order ◽  
Body Parts ◽  
Severe Problem ◽  
Content Type ◽  
Work Related ◽  
Manual Material Handling

PurposeWork-related musculoskeletal disorders constitute a severe problem in the construction industry. Workers' lower backs are often affected by heavy or repetitive lifting and prolonged awkward postures. Exoskeletal interventions are effective for tasks involving manual lifting and repetitive movements. This study aims to examine the potential of a postural-assist exoskeleton (a passive exoskeleton) for manual material handling tasks.Design/methodology/approachFrom an experimental observation of participants, the effects of postural-assist exoskeleton on tasks and workers were measured. Associated benefits of the exoskeleton were assessed through task performance, range of motion and discomfort.FindingsFindings suggest that the exoskeleton influenced discomfort significantly, however range of motion decreased with lifting tasks. The reduced back flexion and increased hip flexion were also indicatives of the participants' responsiveness to the feedback from the exoskeleton. In addition, task completion time increased by 20%, and participants' back pain did not reduce.Research limitations/implicationsThe work tasks were performed in a controlled laboratory environment and only wearable inertia measurement units (IMUs) were used to assess the risk exposures of the body parts.Practical implicationsThis study opens a practical pathway to human-exoskeleton integration, artificial regeneration or enablement of impaired workforce and a window toward a new order of productivity scaling. Results from this study provide preliminary insights to designers and innovators on the influence of postural assist exoskeleton on construction work. Project stakeholders can be informed of the suitability of the postural assist exoskeletons for manual material handling tasks.Originality/valueLittle has been reported on the benefits and impact of exoskeletons on tasks' physical demands and construction workers' performance. This study adds value to the existing literature, in particular by providing insights into the effectiveness and consequences of the postural-assist exoskeleton for manual material handling tasks.

scholarly journals Enhancing operations management through smart sensors: measuring and improving well-being, interaction and performance of logistics workers

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Davide Aloini ◽  
Andrea Fronzetti Colladon ◽  
Peter Gloor ◽  
Emanuele Guerrazzi ◽  
Alessandro Stefanini
Keyword(s):  
Environmental Factors ◽  
Operations Management ◽  
Material Handling ◽  
Empirical Studies ◽  
Well Being ◽  
Individual Characteristics ◽  
Environmental Data ◽  
Content Type ◽  
And Performance ◽  
The Impact

PurposeThe purpose of the research is to conduct an exploratory investigation of the material handling activities of an Italian logistics hub. Wearable sensors and other smart tools were used for collecting human and environmental features during working activities. These factors were correlated with workers' performance and well-being.Design/methodology/approachHuman and environmental factors play an important role in operations management activities since they significantly influence employees' performance, well-being and safety. Surprisingly, empirical studies about the impact of such aspects on logistics operations are still very limited. Trying to fill this gap, the research empirically explores human and environmental factors affecting the performance of logistics workers exploiting smart tools.FindingsResults suggest that human attitudes, interactions, emotions and environmental conditions remarkably influence workers' performance and well-being, however, showing different relationships depending on individual characteristics of each worker.Practical implicationsThe authors' research opens up new avenues for profiling employees and adopting an individualized human resource management, providing managers with an operational system capable to potentially check and improve workers' well-being and performance.Originality/valueThe originality of the study comes from the in-depth exploration of human and environmental factors using body-worn sensors during work activities, by recording individual, collaborative and environmental data in real-time. To the best of the authors' knowledge, the current paper is the first time that such a detailed analysis has been carried out in real-world logistics operations.

scholarly journals Pemetaan Potensi Muskuloskletal Disorders (MSDs) pada Aktivitas Manual Material Handling (MMH) Kelapa Sawit

2017 ◽  
Vol 10 (1) ◽  
Author(s):  
Roberta Zulfhi Surya
Keyword(s):  
Palm Oil ◽  
Material Handling ◽  
Muscle Tension ◽  
Left Shoulder ◽  
Body Parts ◽  
Materials Handling ◽  
Industrial Oil ◽  
Manual Material Handling ◽  
Lower Neck ◽  
The Right

<p>Palm oil (Elaeis) is an important industrial plants producing cooking oil, industrial oil, and fuel (biodiesel) as the palm oil business is currently exceptional. Work activities in palm oil plantations, especially, loading and unloading are potentially causing Musculoskletal Disorders (MSDs). Manual Materials Handling (MMH) activities in palm oil business potentially occurs MSDs at (1) the upper neck; (2) the lower neck; (3) the left shoulder; (4) the right shoulder; (5) the backs; (6) on the right arm; (7) under the left arm; (8) the right forearm; (9) the left wrist; (10) the right wrist; (11) the left hand; and (12) the right hand. MSDs happens due to these 12 body parts are in direct contact with the activities. The primary cause of MSDs is unnatural working attitude and excessive muscle tension began from the design of a working system that is designed not in accordance with the workers’ limitations.</p><p>Keywords: Palm Oil, Musculoskletal Disorders, Manual Material Handling</p>

scholarly journals MUSCULOSKELETAL DISORDER AMONG WORKERS IN SMALL SCALE FORGING INDUSTRY

2013 ◽  
pp. 199-206
Author(s):  
JASPREET SINGH ◽  
GAUTAM KOCHER ◽  
HARVINDER LAL
Keyword(s):  
Material Handling ◽  
Musculoskeletal Disorder ◽  
Working Hours ◽  
Small Scale ◽  
Long Working Hours ◽  
Manual Material Handling ◽  
Working Postures ◽  
The World ◽  
Small Scales ◽  
Task Variation

Musculoskeletal disorders (MSDs) are common health problem throughout the world and a major cause of disability in the workplace. This study was conducted among workers of a small scale forging Industries. The small scale forging units involve various kinds of high repetitive processes like Blanking, cutting, shearing, furnace loading, hammering, punching and trimming etc. the workers performing these type of activities are suffering from various MSDs. In this study I had surveyed 10 small scales forging industries and randomly selected 102 workers among these industries. The most common ergonomics problems were found in industry like wrong working positions of the workers and manual material handling. MSDs are found due to Inappropriate and poor working postures, lack of task variation, poor ergonomic design of work places, poor design of plant layout, long working hours, low salaries and awkward schedules are all areas where relatively simple intervention can Significantly reduce the rate of exposure to MSDs.

scholarly journals ANALISIS MANUAL MATERIAL HANDLING UNTUK MEMINIMALISIR TERJADINYA MUSCULOSKELETAL DISORDER PADA PEKERJA TAHU

2021 ◽  
Vol 3 ◽  
pp. 56-64
Author(s):  
Aminah Soleman ◽  
Adhi Priyadi
Keyword(s):  
Musculoskeletal Disorders ◽  
Material Handling ◽  
Musculoskeletal Disorder ◽  
Permissible Limit ◽  
Back Injuries ◽  
Manual Material Handling ◽  
Body Map

Penggunaan tenaga manusia sebagai sumber tenaga kerja memiliki resiko terjadinya cidera pada tulang belakang. Fleksibilitas gerakan merupakan satu-satunya alasan industri masih memanfaatkan tenaga manusia dalam penanganan material secara manual. Berdasarkan hasil kuisioner Nordic Body Map (NBM) pada 2 orang responden di UKM. Sederhana, yaitu responden pertama menunjukan scoring NBM sebesar 43, yang artinya masuk dalam kategori tinggi dan perlu dilakukan perbaikan segera. Pada responden kedua menunjukan nilai skoring NBM sebesar 38 yang artinya masuk dalam kategori sedang dan mungkin perlu dilakukan perbaikan. Dari hasil analisis kuisioner tersebut, apabila responden bekerja dengan durasi waktu yang lama dan repatitif, kondisi ini akan beresiko terjadinya gangguan sistem musculoskeletal disorders (MSDs) yang berakibat pada masalah back injuries yakni cedera karena adanya gaya tekan pada tulang belakang. Penelitian menggunakan metode NIOSH yang terdiri dari perhitungan MPL (Maximum Permissible Limit) dan RWL (Recommended Weight Limit) pada 2 orang responden di UKM sederhana, sehingga diperoleh hasil yaitu pada responden I terjadi gaya tekan pada segmen L5/S1 sebesar 1907,625 N dan responden II sebesar 1331,843 N dan kemudian berat beban angkat yang direkomendasikan untuk kedua responden tersebut adalah tidak lebih dari 3,763 kg untuk responden I dan tidak lebih dari 3,90 kg untuk responden II.

scholarly journals MANUAL MATERIAL HANDLING IN THE ‘KARUNG’ LIFTING PROCESS USING BIOMECHANIC AND PHYSIOLOGI APPROACH

2019 ◽  
Vol 24 (1) ◽  
pp. 32-38
Author(s):  
Okka Adiyanto ◽  
Fajar Aji Prasetyo ◽  
Muhammad Faris Kautsar Ramadhani
Keyword(s):  
Material Handling ◽  
Musculoskeletal Disorder ◽  
The Body ◽  
Body Posture ◽  
Permissible Limit ◽  
Traditional Markets ◽  
Manual Material Handling ◽  
Safe Condition ◽  
Spinal Damage ◽  
Lifting Techniques

This study was aimed at minimizing musculoskeletal disorder (MSDs) in heavers on traditional markets by completing facilities and improving lifting techniques that are in accordance with ergonomic aspects. This research was conducted in traditional markets with heaver objects which are often carried out in the process of moving goods. This study used biomechanics and physiology methods to be able to analyze body posture so that it can prevent spinal damage. The data were then analyzed using Maximum Permissible Limit (MPL), which previously carried out data collection on the size of the body posture. The analysis of the results was done to determine the value of the compression force (FC). FC values are the basis for comparison with Action Limit (AL). The results show that FC values = 10,018,078N, FC> MPL. Importantly, the position of the heavers’ posture is at a dangerous level. Proposed improvements using a tool and after being developed again will result in changes in FC values to 3370.94, FC <AL means the position of the body in a safe condition. The results of this study are expected to provide an assessment that helps prevent spinal damage.MANUAL MATERIAL HANDLING PADA PROSES PENGANGKATAN KARUNG MENGGUNAKAN PENDEKATAN BIOMEKANIKA DAN FISIOLOGI Penelitian ini bertujuan untuk meminimumkan keluhan Musculoskeletal disorder (MSDs) pada pekerja kuli panggul di pasar tradisional dengan merancang fasilitas dan memperbaiki teknik memindahkan barang yang sesuai dengan aspek ergonomis. Penelitian ini dilakukan di pasar tradisional dengan objek kuli panggul yang sering melakukan proses pemindahan barang. Penelitian ini menggunakan metode pendekatan biomekanika dan fisiologi untuk dapat menganalisis postur tubuh sehingga dapat mencegah cedera tulang belakang. Data kemudian dianalisa menggunakan Maximum Permissible Limit (MPL) yang sebelumnya dilakukan pengambilan data ukuran postur tubuh pekerja tersebut. Analisis hasil dari perhitungan dilakukan untuk mengetahui nilai dari force compresion (FC). Nilai FC menjadi dasar untuk dibandingkan dengan Action Limit (AL). Hasil dari analisa didapat nilai FC = 10.018,078N, FC>MPL. Artinya, posisi postur tubuh pekerja dalam level berbahaya. Usulan perbaikan dengan menggunakan alat bantu dan setelah dianalisis kembali maka akan menghasilkan perubahan nilai FC menjadi 3370,94; FC< AL artinya posisi tubuh dalam keadaan aman. Hasil penelitian ini diharapkan dapat memberikan rekomendasi alat bantu sehingga dapat mencegah cedera tulang belakang.

scholarly journals Evaluasi Aktivitas Manual Material Handling dan Penerapan K3 Bagian Palletizing Kemasan Jerigen di PT. XYZ

2020 ◽  
Vol 19 (1) ◽  
Author(s):  
Kusnadi Kusnadi ◽  
Aulia Fashanah Hadining ◽  
Wahyudin Wahyudin
Keyword(s):  
Working Conditions ◽  
Material Handling ◽  
Manual Lifting ◽  
Work Attitude ◽  
Manual Material Handling ◽  
Lower Back ◽  
Risk Of Injury ◽  
Work Posture ◽  
Line Section ◽  
Heavy Loads

<span lang="EN">Production results that are handled manually are lifting the burden of jerry cans weighing 24 kg from the conveyor to the pallet. This removal process is risky for musculoceletal and can cause lower back pain. The appointment process takes place in the packing line section D. The purpose of this study is to determine the level of risk, find out the form of conveyor in accordance with working conditions and provide recommendations for corrective actions to be taken when the operator's work attitude has the risk of injury. The assessment of work posture is based on the assessment of RULA for each part (upper arm, forearm, wrist, wrist rotation, back, neck, and leg position) which are then categorized based on the results of the grand score on the action level indicating that the posture is required repair or not. The results of this study found that 3 workers for the grand score of work posture an average of 7 which indicates the need for action now. This is influenced by heavy loads with manual lifting</span>.

scholarly journals Analisis Postur Kerja Manual Material Handling Menggunakan Biomekanika dan Niosh

2018 ◽  
Vol 1 (1) ◽  
pp. 61
Author(s):  
Krishna Tri Sanjaya ◽  
Novi Hendra Wirawan ◽  
Baid Adenan
Keyword(s):  
Material Handling ◽  
Musculoskeletal Disorder ◽  
Manual Material Handling

Kerja atau aktivitas merupakan salah satu kegiatan manusia yang tidak dapat dihindarkan lagi. Salah satu aktivitas tersebut adalah pemindahan barang, proses pemindahan barang terjadi baik diperusahaan maupun pekerja yang berada diluar perusahaan. Aktivitas pemindahan yang terjadi pada pekerja bongkar es balok terjadi secara manual. Aktifitas pengangkatan secara membungkuk yang disebabkan adanya pembebanan yang terlalu berat menyebabkan cedera tulang belakang dan gangguan otot lainnya (musculoskeletal disorder). Selain itu aktifitas pemindahan barang juga perlu diperhatikan guna meningkatkan kesehatan dan keselamatan kerja. Pada hasil penelitian Berdasarkan perhitungan momen gaya rata-rata adalah 74425,72, hal ini akan membuat sakit pada tulang belakang sehingga dalam waktu tertentu tubuh akan berubah menjadi membungkuk. Nilai konsumsi energi rata-rata adalah 3,6, hal ini menunjukkan konsumsi energi oleh para pekerja termasuk kategori moderat. Untuk nilai RWL rata-rata 16,42 kg dan nilai (LI) dengan massa beban 27 kg nilai LI rata-rata adalah 1,63, nilai tersebut sangat beresiko menyebabkan cedera tulang belakang L5/S1. Setelah dilakukan usulan perbaikan sistem kerja pada RWL dan LI mendapatkan hasil nilai RWL sebesar 40,67 dan LI sebesar 0,6, nilai LI setelah usulan sudah tidak menimbulkan cidera pada ruas tulang belakang L5/S1.Kata kunci : Biomekanika, Lifting Index (LI), Manual Material Hadling, Recommended Weight Limit (RWL).

scholarly journals USULAN PERBAIKAN POSTUR KERJA UNTUK MENGURANGI BEBAN KERJA PROSES MANUAL MATERIAL HANDLING DENGAN METODE RULA REBA QEC (Studi Kasus Pengemasan Herbisida di PT. Petrokimia Kayaku Pabrik 3)

2020 ◽  
Vol 8 (3) ◽  
pp. 203
Author(s):  
Gatot Basuki HM ◽  
Narto
Keyword(s):  
Musculoskeletal Disorders ◽  
Material Handling ◽  
Musculoskeletal Disorder ◽  
Manual Material Handling ◽  
Body Map

Kondisi sikap kerja bagian pengemasan produk herbisida di PT. Petrokimia Kayaku Pabrik 3 sering kali pekerja mengeluh pada bagian anggota tubuh. Hal ini disebabkan oleh penanganan material handling saat proses pemindahan produk herbisida dari line robot di pindahkan ke atas pallet dengan mengangkat langsung produk herbisida yang sudah di kemas dalam karto box.  Dengan kuesioner Nordic Body Map untuk mengukur 27 jenis keluhan tubuh, selanjutnya menggunakan Metode RULA sebagai alat analisis untuk mengurangi resiko musculoskeletal disorders pada tubuh bagian atas, sedangkan metode REBA digunakan untuk menganalisis postur tubuh bagian bawah. Quick Exposure Check (QEC) adalah metode yang digunakan untuk mengetahui risiko cidera gangguan otot rangka (musculoskeletal disorder) yang menitik beratkan pada tubuh bagian atas. Tujuan penelitian untuk mengetahui sikap kerja pekerja dan melakukan penilaian postur kerja serta memberikan usulan perbaikan metode kerja pada proses Manual Material Handling line robot bagian pengemasan produk herbisida. Hasil analisis menunjukan sikap pekerja belum memberikan kesiapan untuk merespon yang sifatnya positif atau negatif terhadap obyek dan situasi. perbaikan postur kerja hasil perhitungan yang dilakukan dengan metode RULA dari kondisi saat ini skor 7 menjadi skor 4, dimana usulan berupa perbaikan postur kerja yang ergonomi yaitu operator berdiri dengan posisi tegak. Kemudian menambahkan alat bantu kerja berupa pallet leveller sping dan U-Lift Roll-In Lift Table agar operator tidak perlu membungkuk ketika meletakkan karton box ke atas pallet. Sehingga dengan usulan ini grand score RULA dapat turun menjadi 4 dan termasuk dalam kategori level risiko rendah (perubahan mungkin diperlukan), grand score REBA dapat turun menjadi 2.

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