scholarly journals Tools design of bread production process to minimize musculoskeletal disorders based on OCRA method

2018 ◽  
Vol 7 (2.29) ◽  
pp. 106 ◽  
Author(s):  
Ayu Bidiawati ◽  
Lestari Setiawati ◽  
Yulia Kurnia
Keyword(s):  
Musculoskeletal Disorders ◽  
Anthropometric Data ◽  
Left Hand ◽  
Baking Process ◽  
Human Energy ◽  
Long Time ◽  
Body Map ◽  
Bread Production ◽  
Index Value ◽  
The Right

Less supportive working methods may lead operators inconvenience while working. This discomfort can be caused by a non-ergonomic work environment. Bread baking process is done manually using human energy. This work is done repeatedly for a long time, thereby posing a risk of musculoskeletal disorders. This is at risk of causing pain in some parts of the worker's body. Ergonomic work facilities and equipment are essential to minimize risk at work. The result of NBM (Nordic Body Map) questionnaire indicate that the biggest complaint is on the right back of the worker's arm and shoulders. In baking process, the operator must bend almost 90 degrees. This posture can cause health problems, especially musculoskeletal.  Based on observations using the OCRA (Occuptional Repetitive Action) method, the OCRA index value for the right hand is 8.56 and for the left hand is 7.84, with the red area and the average category of risk. Therefore, a trolley is designed in this study as a tool to minimize musculoskeletal complaints, using workers anthropometric data.  

scholarly journals Aplikasi Ergonomic Function Deployment (Efd) Pada Redesign Alat Parut Kelapa Untuk Ibu Rumah Tangga

2015 ◽  
Vol 8 (1) ◽  
pp. 51-59
Author(s):  
Roberta Zulfhi Surya ◽  
Rusdi Badruddin
Keyword(s):  
Musculoskeletal Disorders ◽  
Time Difference ◽  
Musculoskeletal Complaints ◽  
Anthropometric Data ◽  
Convenient Form ◽  
Before And After ◽  
Body Map

Abstrak. Pemarutan kelapa adalah salah satu pekerjaan dapur yang dihadapi ibu rumah tangga sehari-hari. Produk alat parut kelapa yang sudah beredar di pasaran salah satunya adalah produk pemarut kelapa dengan cara manual menggunakan sistem engkol. Ibu rumah tangga mempunyai keluhan rasa sakit pada bagian anggota tubuh terutama tangan, pinggang dan punggung setelah menggunakan alat parut kelapa yang sudah ada. Penelitian ini bertujuan untuk perbaikan rancangan alat parut kelapa sistem engkol yang berbasis Ergonomic Function Deployment (EFD), juga mengetahui penurunan muskuloskeletal ibu rumah tangga sebagai pengguna, serta mengetahui perbedaan waktu pemarutan kelapa setelah dilakukan perancangan ulang. Penelitian dilakukan di RT. 001 RW. 005 Kelurahan Tembilahan Barat Kecamatan Tembilahan Hulu Kabupaten Indragiri Hilir. Model penelitian ini menggunakan rancangan sama subjek (treatment by subjects design) dengan jumlah sampel 12 ibu rumah tangga yang didapat dari perhitungan rumus Colton. Perbaikan rancangan alat parut kelapa sistem engkol yang berbasis Ergonomic Function Deployment (EFD) didapat dengan membuat matriks House of Ergonomic (HOE) dan penentuan data antropometri. Keluhan muskuloskeletal ibu rumah tangga diketahui dengan membuat lembar kerja kuisioner Nordic Body Map (NBM). Waktu pemarutan kelapa didapat dengan menguji alat parut kelapa sistem engkol antara sebelum dan sesudah perancangan. Hasil penelitian setelah dilakukan perancangan ulang alat parut kelapa sistem engkol menunjukkan bahwa rancangan alat parut kelapa sistem engkol yang berbasis Ergonomic Function Deployment (EFD) adalah memiliki aspek-aspek ergonomi yang lengkap yaitu efektif, nyaman, aman, sehat, dan efisien (ENASE). Keluhan muskuloskeletal ibu rumah tangga mengalami penurunan sebesar 0.285 atau 17.39%. Waktu pemarutan kelapa juga lebih cepat 5 menit atau mengalami peningkatan sebesar meningkat 30.10% setelah perancangan ulang alat parut kelapa sistem engkol. Ergonomic Function Deployment (Efd) Application In Coconut Grater Redesign For HousewifeAbstract. Pulverizing (coconut grated) is one of daily kitchen worksconducted by housewives. A common existing coconut grater which is available on the market is normally works using a crank system. Housewives have complaints of pain in the limbs, especially the hands, waist and back after using this grater. This study aims to improve the design of coconut grater with Ergonomic Function Deployment (EFD) based system and determine the housewife musculoskeletal decline as users. Further, to examine pulverizing time difference after redesign. The study was conducted at RT. 001 RW. 005 West Tembilahan Hulu village, subdistrict Tembilahan Indragiri Hilir. The method use in this study is same design subject (treatment by subjects design) with co added Colton equation. Atotal of 12 housewives were used and subjected to the calculation. A grater redesign with EFD system was obtained by creating House of Ergonomic (HOE) matrices and determining the anthropometric data. Whilst musculoskeletal disorders were obtained by generating Nordic Body Map (NBM)worksheets questionnaire. Moreover, pulverizing time was obtained by testing coconut graterused before and after redesign. Results of the study showed that the redesign tool based on Ergonomic Function Deployment (EFD) systemwasfound to be more convenient form which five ergonomics aspects required was fulfilled: effective, convenient, safe, healthy, and efficient (ENASE). Housewife musculoskeletal complaints decreased by 0.285% or 17.39%. This study also shows that coconut pulverizing time is 5 minutes faster and increased by 30.10% after redesigning the coconut grater crank system.

scholarly journals Musculoskeletal disorders analyzing of air cleaner assembly operators using Nordic body map in excavator manufacturer in Indonesia

2019 ◽  
Vol 11 (2) ◽  
pp. 165
Author(s):  
Galih Prakoso ◽  
Hardianto Iridiastadi ◽  
Euis Nina Saparina
Keyword(s):  
Musculoskeletal Disorders ◽  
Assessment Method ◽  
Left Knee ◽  
Body Parts ◽  
Left Elbow ◽  
Work Posture ◽  
Heavy Equipment ◽  
Air Cleaner ◽  
Body Map ◽  
The Right

Musculoskeletal disorders often occur in non-ergonomic work postures. In this study an assessment of operator disorders was carried out on the installation of air cleaner components in a heavy equipment manufacturer. The purpose of this study was to determine the extent to which operator disorders and which body parts needed to improve work posture. The assessment method uses a standard Nordic Body Map questionnaire that is often used to assess musculoskeletal disorders. From the results of the assessment, the main disorders were in the right and left elbow body parts at 93%. Second, 87% of the body's right knee and left knee, third, right and left forearm, 80% right and left wrist, fourth on the second upper arm and 73% on the palm. The fifth is on the right shoulder, back and calf 60%. Therefore in these body parts, it is necessary to improve work posture to reduce the risk of musculoskeletal injury. An installation tool is needed for the process to make it easier for operators to work.

scholarly journals Studi Keluhan Musculoskeletal Disorder (MSDs) di UD. Berkah Alam Tahun 2021

2021 ◽  
Vol 20 (2) ◽  
Author(s):  
Hanifah Dwi Lestari ◽  
Moch Sahri
Keyword(s):  
Musculoskeletal Disorders ◽  
Musculoskeletal System ◽  
Musculoskeletal Disorder ◽  
Industrial Sector ◽  
Left Shoulder ◽  
Rapid Progress ◽  
Left Forearm ◽  
Industrial Sectors ◽  
Body Map ◽  
The Right

The rapid progress in the industrial sector has an important role in growing the economy. Without the industrial sector, growth in developing countries will be slower than in previous years. UD. Berkah Alam is one of the informal industrial sectors that focuses on coconut management. The types of jobs available at UD. The blessings of Nature are the pacak part, the scrap part, the daily part and the copra part. This type of work has a risk of musculoskeletal disorders. The study was conducted with the aim of knowing the prevalence of complaints of Musculoskeletal Disorders (MSDs) in each work section. The method used is a survey using a nordic body map using a questionnaire. The results showed that 59% of all workers experienced complaints of pain or pain, especially in the musculoskeletal system. Workers who experience complaints on the musculoskeletal system are highest in the copra (100%). Complaints of disorders experienced by workers of the right shoulder, left shoulder, buttocks, buttocks, right forearm and left forearm.

Editorial Note

1946 ◽  
Vol 11 (1) ◽  
pp. 2-2
Keyword(s):  
Editorial Note ◽  
Speech Sounds ◽  
Left Hand ◽  
Hand Column ◽  
Right Hand ◽  
Infant Speech ◽  
The Right

In the article “Infant Speech Sounds and Intelligence” by Orvis C. Irwin and Han Piao Chen, in the December 1945 issue of the Journal, the paragraph which begins at the bottom of the left hand column on page 295 should have been placed immediately below the first paragraph at the top of the right hand column on page 296. To the authors we express our sincere apologies.

Is the Future the Right Time?

2010 ◽  
Vol 57 (4) ◽  
pp. 308-314 ◽  
Author(s):  
Marc Ouellet ◽  
Julio Santiago ◽  
Ziv Israeli ◽  
Shai Gabay
Keyword(s):  
Auditory Task ◽  
English Speakers ◽  
Visual Modality ◽  
Opposite Pattern ◽  
Time Line ◽  
Temporal Reference ◽  
Left Hand ◽  
Reading Direction ◽  
Mental Time Line ◽  
The Right

Spanish and English speakers tend to conceptualize time as running from left to right along a mental line. Previous research suggests that this representational strategy arises from the participants’ exposure to a left-to-right writing system. However, direct evidence supporting this assertion suffers from several limitations and relies only on the visual modality. This study subjected to a direct test the reading hypothesis using an auditory task. Participants from two groups (Spanish and Hebrew) differing in the directionality of their orthographic system had to discriminate temporal reference (past or future) of verbs and adverbs (referring to either past or future) auditorily presented to either the left or right ear by pressing a left or a right key. Spanish participants were faster responding to past words with the left hand and to future words with the right hand, whereas Hebrew participants showed the opposite pattern. Our results demonstrate that the left-right mapping of time is not restricted to the visual modality and that the direction of reading accounts for the preferred directionality of the mental time line. These results are discussed in the context of a possible mechanism underlying the effects of reading direction on highly abstract conceptual representations.

Rancang Bangun Sistem Penerimaan Dan Mutasi Barang Pada PDAM Tirta Kerta Raharja

Sensi Journal ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 236-246
Author(s):  
Ilamsyah Ilamsyah ◽  
Yulianto Yulianto ◽  
Tri Vita Febriani
Keyword(s):  
System Analysis ◽  
Object Oriented ◽  
Analysis Method ◽  
Web Based ◽  
Visual Modeling ◽  
Long Time ◽  
The Right ◽  
And Control ◽  
Web Based System ◽  
The Web

The right and appropriate system of receiving and transferring goods is needed by the company. In the process of receiving and transferring goods from the central warehouse to the branch warehouse at PDAM Tirta Kerta Raharja, Tangerang Regency, which is currently done manually is still ineffective and inaccurate because the Head of Subdivision uses receipt documents, namely PPBP and mutation of goods, namely MPPW in the form of paper as a submission media. The Head of Subdivision enters the data of receipt and mutation of goods manually and requires a relatively long time because at the time of demand for the transfer of goods the Head of Subdivision must check the inventory of goods in the central warehouse first. Therefore, it is necessary to hold a design of information systems for the receipt and transfer of goods from the central warehouse to a web-based branch warehouse that is already database so that it is more effective, efficient and accurate. With the web-based system of receiving and transferring goods that are already datatabed, it can facilitate the Head of Subdivision in inputing data on the receipt and transfer of goods and control of stock inventory so that the Sub Head of Subdivision can do it periodically to make it more effective, efficient and accurate. The method of data collection is done by observing, interviewing and studying literature from various previous studies, while the system analysis method uses the Waterfall method which aims to solve a problem and uses design methods with visual modeling that is object oriented with UML while programming using PHP and MySQL as a database.

scholarly journals Hand Preference and Performance in Basketball Tasks

2019 ◽  
Vol 16 (22) ◽  
pp. 4336 ◽  
Author(s):  
Emanuela Gualdi-Russo ◽  
Natascia Rinaldo ◽  
Alba Pasini ◽  
Luciana Zaccagni
Keyword(s):  
Professional Training ◽  
Factor Model ◽  
Hand Preference ◽  
Control Group ◽  
Basketball Players ◽  
Confirmatory Factor Analyses ◽  
Left Hand ◽  
Confirmatory Factor ◽  
And Performance ◽  
The Right

The aims of this study were to develop and validate an instrument to quantitatively assess the handedness of basketballers in basketball tasks (Basketball Handedness Inventory, BaHI) and to compare it with their handedness in daily activities by the Edinburgh Handedness Inventory (EHI). The participants were 111 basketballers and 40 controls. All subjects completed the EHI and only basketballers filled in the BaHI. To validate the BaHI, a voluntary subsample of basketballers repeated the BaHI. Exploratory and confirmatory factor analyses supported a two-factor model. Our results show that: (i) Handedness score (R) in daily actions did not differ between basketball players (R by EHI = 69.3 ± 44.6) and the control group (R by EHI = 64.5 ± 58.6); (ii) basketballers more frequently favored performing certain sport tasks with the left hand or mixed hands (as highlighted by R by BaHI = 50.1 ± 47.1), although their choice was primarily the right hand in everyday gestures; and (iii) this preference was especially true for athletes at the highest levels of performance (R by BaHI of A1 league = 38.6 ± 58.3) and for those playing in selected roles (point guard’s R = 29.4 ± 67.4). Our findings suggest that professional training induces handedness changes in basketball tasks. The BaHI provides a valid and reliable measure of the skilled hand in basketball. This will allow coaches to assess mastery of the ball according to the hand used by the athlete in the different tasks and roles.

scholarly journals Digit Variability in Carotenoid Scores Obtained with the Veggie Meter: A Pilot Study (P02-001-19)

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Velarie Ansu ◽  
Stephanie Dickinson ◽  
Alyce Fly
Keyword(s):  
Indiana University ◽  
Left Hand ◽  
Funding Sources ◽  
Right Hand ◽  
Period Data ◽  
The Mean ◽  
The Right ◽  
Post Hoc ◽  
Main Effects ◽  
Mean Square Errors

Abstract Objectives To determine which digit and hand have the highest and lowest skin carotenoid scores, to compare inter-and-intra-hand variability of digits, and to determine if results are consistent with another subject. Methods Two subjects’ first(F1), second(F2), third(F3) and fifth(F5) digits on both hands were measured for skin carotenoids with a Veggie Meter, for 3 times on each of 18 days over a 37-day period. Data were subjected to ANOVA in a factorial treatment design to determine main effects for hand (2 levels), digits (4), and days (18) along with interactions. Differences between digits were determined by Tukey's post hoc test. Results There were significant hand x digit, hand x day, digit x day, and hand x digit x day interactions and significant simple main effects for hand, digit, and day (all P < 0.001). Mean square errors were 143.67 and 195.62 for subject A and B, respectively, which were smaller than mean squares for all main effects and interactions. The mean scores ± SD for F1, F2, F3, and F5 digits for the right vs left hands for subject A were F1:357.13 ± 45.97 vs 363.74 ± 46.94, F2:403.17 ± 44.77 vs. 353.20 ± 44.13, F3:406.76 ± 43.10 vs. 357.11 ± 45.13, and F5:374.95 ± 53.00 vs. 377.90 ± 47.38. For subject B, the mean scores ± SD for digits for the right vs left hands were F1:294.72 ± 61.63 vs 280.71 ± 52.48, F2:285.85 ± 66.92 vs 252.67 ± 67.56, F3:268.56 ± 57.03 vs 283.22 ± 45.87, and F5:288.18 ± 34.46 vs 307.54 ± 40.04. The digits on the right hand of both subjects had higher carotenoid scores than those on the left hands, even though subjects had different dominant hands. Subject A had higher skin carotenoid scores on the F3 and F2 digits for the right hand and F5 on the left hand. Subject B had higher skin carotenoid scores on F5 (right) and F1 (left) digits. Conclusions The variability due to hand, digit, and day were all greater than that of the 3 replicates within the digit-day for both volunteers. This indicates that data were not completely random across the readings when remeasuring the same finger. Different fingers displayed higher carotenoid scores for each volunteer. There is a need to conduct a larger study with more subjects and a range of skin tones to determine whether the reliability of measurements among digits of both hands is similar across the population. Funding Sources Indiana University.

scholarly journals Sea Surface Salinity Response to Tropical Cyclones Based on Satellite Observations

2021 ◽  
Vol 13 (3) ◽  
pp. 420
Author(s):  
Jingru Sun ◽  
Gabriel Vecchi ◽  
Brian Soden
Keyword(s):  
Tropical Cyclones ◽  
Sea Surface ◽  
Sea Surface Salinity ◽  
Surface Salinity ◽  
Translation Speed ◽  
Salinity Stratification ◽  
Left Hand ◽  
In Situ Data ◽  
Salinity Response ◽  
The Right

Multi-year records of satellite remote sensing of sea surface salinity (SSS) provide an opportunity to investigate the climatological characteristics of the SSS response to tropical cyclones (TCs). In this study, the influence of TC winds, rainfall and preexisting ocean stratification on SSS evolution is examined with multiple satellite-based and in-situ data. Global storm-centered composites indicate that TCs act to initially freshen the ocean surface (due to precipitation), and subsequently salinify the surface, largely through vertical ocean processes (mixing and upwelling), although regional hydrography can lead to local departure from this behavior. On average, on the day a TC passes, a strong SSS decrease is observed. The fresh anomaly is subsequently replaced by a net surface salinification, which persists for weeks. This salinification is larger on the right (left)-hand side of the storm motion in the Northern (Southern) Hemisphere, consistent with the location of stronger turbulent mixing. The influence of TC intensity and translation speed on the ocean response is also examined. Despite having greater precipitation, stronger TCs tend to produce longer-lasting, stronger and deeper salinification especially on the right-hand side of the storm motion. Faster moving TCs are found to have slightly weaker freshening with larger area coverage during the passage, but comparable salinification after the passage. The ocean haline response in four basins with different climatological salinity stratification reveals a significant impact of vertical stratification on the salinity response during and after the passage of TCs.

scholarly journals Anatomical work-up of an individual with multiple muscular variants on both forearms

2021 ◽  
Author(s):  
Peter S. Hagedorn ◽  
Bernhard Hirt ◽  
Thomas Shiozawa ◽  
Peter H. Neckel
Keyword(s):  
Carpal Tunnel ◽  
Proximal Phalanx ◽  
Neurovascular Compression ◽  
Male Body ◽  
Muscle Belly ◽  
Left Hand ◽  
Palmaris Longus ◽  
Palmar Aponeurosis ◽  
The Right ◽  
Work Up

AbstractMuscular variants of the forearm are common and frequently cause neurovascular compression syndromes, especially when interfering with the compact topography of the carpal tunnel or the Canalis ulnaris. Here, we report on a male body donor with multiple muscular normal variations on both forearms. The two main findings are (1) an accessory variant muscle (AVM) on the right forearm originating from the M. brachioradialis, the distal radius, and the M. flexor pollicis longus. It spanned the wrist beneath the Fascia antebrachia and inserted at the proximal phalanx of the digitus minimus. (2) Moreover, we found a three-headed palmaris longus variant on the left arm with proximal origin tendon and a distal, trifurcated muscle belly, with separated insertions at the palmar aponeurosis, the flexor retinaculum, and, in analogy to the accessory muscle on the contralateral arm, at the base of the proximal phalanx of the digitus minimus. We found a considerable thickening of the left-hand median nerve right before entering the carpal tunnel indicative of a possible chronic compression syndrome adding clinical relevance to this anatomical case. We also discuss the notion that both, the AVM and the contralateral three-headed palmaris variant are developmental descendants of the M. palmaris longus. Additionally, we found a previously not recorded variant of the M. palmaris brevis on the left hand.

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