Elbow Height Research Articles

Design of Ergonomic Flour Dough Mixer with Participatory Approach to Increase Work Productivity MSME Employees

Culinary businesses that are members of MSMEs usually process foodstuffs, including stirring flour dough manually using their hands. It is ineffective, makes you tired quickly, and takes a long time. Usually there are complaints such as complaints of arm muscles, complaints of fatigue in the hands, pain in the palms, and it takes a long time, resulting in subpar worker productivity. Consequently, a participation flour dough mixer that is ergonomic is required. In order to conduct this research, an experimental design of a flour dough mixer was created and applied to sixteen samples of MSME employees in the Tabanan Regency. The Nordic Body Map questionnaire was used to measure musculoskeletal diseases, and the workload was divided by the survey results to determine job productivity. The employee's work pulse was measured using a pulse meter. The findings demonstrated that the ergonomic flour dough mixer was designed based on the worker's anthropometric measurements. The tool's height was matched to the worker's standing elbow height, and the container's dimensions matched the worker's hand's reach. The design of an ergonomic flour dough mixer can reduce the workload of MSME employees by 15.1%; reduce musculoskeletal disorders of MSME employees by 47.9%; reduce MSME employee fatigue by 52.3%; and increase the work productivity of MSME employees by 501.1%.

Risk Factors for Injury in Border Collies Competing in Agility Competitions.

Border Collies are the most common breed in agility and their reported injury rate is much higher than that of other breeds. We aimed to identify demographic, training, and competition variables associated with the injury risk for this breed. We hypothesized that higher jump heights and competition at national/international levels would increase the injury risk. Data were collected from an internet-based survey. A logistic regression model was built using backward selection. There were 934 Border Collies in the sample, with 488 reporting an injury. The jump height relative to the shoulder height was associated with injury, with dogs jumping noticeably above or below shoulder height more likely to report a history of injury. Other identified risk factors included the number of weekends spent competing/year, the number of competitions at the national level, the age when starting elbow height jumps and backside jumps, the acquisition of the dog from a breeder, and the age of the handler. Factors associated with prolonged injury (>3-month duration) were the age when starting elbow height jumps and having a veterinary assistant as a handler. Border Collies jumping above shoulder height had an increased risk of injury. However, those jumping below shoulder height were also at a higher risk, which could have been due to reverse causality. Similarly, the observed associations regarding differences based on the number of trial weekends/year may have been impacted by reverse causality as well. The increased risk of injury with elbow height jump training at <10 months of age may indicate that the repetitive impact of jump training prior to skeletal maturity negatively influences musculoskeletal development. These data provide valuable information for further prospective studies.

Redesign of elderly beds as an effort to overcome degenerative diseases using a participatory approach

The utilization of beds among the elderly, especially those with degenerative diseases, presents health and comfort challenges. To address these issues, this research aims to redesign elderly beds using a participatory ergonomics method at Madania Potonoro Nursing Home. By involving the elderly and caregivers in the process, the research findings highlight the need for bed improvements. The proposed design includes additional features such as a folding table, bookshelf, cane holder, assistive standing devices, and a drink holder, based on identified needs. Anthropometric dimensions, including Shoulder Width (SW), Height (H), Popliteal Height (PH), Elbow Height in Sitting (EHS), Elbow Height in Standing (EHS), Seat Depth (SD), and Maximum Grip Diameter (MGD), serve as guidelines for bed design. Analyzing these dimensions at the 5th, 50th, and 95th percentiles, adjustments are made to accommodate additional attributes or features on the bed. The recommended design not only provides optimal comfort and safety for the elderly but also improves their overall quality of life. This research emphasizes the importance of involving users in the design process to ensure solutions align with their needs and preferences.

Perancangan Alat Bantu Penghitung Pentol untuk Mempermudah Proses Pengemasan Berdasarkan Antropometri Pekerja

The "Raja Gresik" meatball factory was established in 2008 and was established in 2018. One of the problems at this factory was that when carrying out the process of packaging meatball in plastic packs, there were packs whose quantity did not match the specifications for the number of meatball of that type. With the existing problems, it is hoped that this research can help the "Raja Gresik" meatball factory to reduce defects in calculating meatball in packs and make workers less tired because the design of the meatball counting tool is in accordance with the anthropomometry of workers. The existence of this tool can reduce losses from an inappropriate number of meatballs in the pack, which will effectively prevent product defects from excess or shortage of meatball. Also, the presence of this tool makes the packaging process time faster from 30 seconds to 23.43 seconds after using this tool. And it can be used for worker anthropometry, namely hand reach length, knee height and standing elbow height.

Relationship between one-handed push force and subjective rating of force exertion.

Pushing is a typical workplace activity that may result in musculoskeletal disorders (MSDs). A convenient method of assessing the risk of MSDs is to determine the association between the force applied and the subjective rating of force exertion. This study aimed to determine the relationship between the subjective rating of force exertion and the force applied to both a fixed and a movable handle. It also aimed to confirm that the participants could apply a higher one-handed push force at shoulder height than at elbow height. A one-handed pushing experiment was conducted. In the push-to-scale session, the participants pushed a handle fixed on a rig on four levels on the CR-10 scale. The push force was measured. In the force-rating session, the participants rated their force exertions when pushing a movable handle with metal blocks suspended on the two sides. The subjective ratings on the CR-10 were recorded. The one-handed push force at shoulder height was significantly higher than that at elbow height. More effort was needed to push on a movable handle than a fixed one. Two regression models were established to describe the relationship between the push force and the subjective ratings of pushing for each of the fixed and movable handles, respectively. The correlation coefficient results showed that these models are adequate to describe the relationship between the one-handed push force and the ratings of the CR-10 scale. Participants applied a higher one-handed push force at shoulder height than at elbow height was confirmed. Participants needed more efforts to push the movable handle under the same CR-10 level than the fixed handle. The predictive models developed in this study may be used to estimate the push force for one-handed pushing tasks when assessing the risk of MSDs.

Redesign of Rice Planting Tools Using an Ergonomics Approach

Farmers' work in planting rice is always with a bent posture, causing complaints of musculoskeletal disorders, this is a problem in research. The aim of the research is to identify farmers' complaints of musculoskeletal disorders when planting rice and determine the size of ergonomic tools. The method used is standard Nordic questionnaires to determine the point of complaint among farmers, anthropometry and percentiles are used to design the tool. Statistical tests are used to see valid, uniform, and normal data. Results and discussion, in the standard Nordiq questionnaire, it was found that farmers experienced more than 50% complaints of severe pain in the waist, left calf, right calf, left ankle, right ankle, left foot, and right foot. The design uses eight anthropometric dimensions: standing elbow height, palm length, palm width, middle finger length, shoulder width, body thickness, upper arm length, and hand length. All anthropometric dimensions were declared uniform, in the data adequacy test they were declared valid, and in the normality test, all data were declared normally distributed. The 5th percentile is used for the dimensions of shoulder width, standing elbow height, and palm length, and the 95th percentile is used for the dimensions of palm width, middle finger length, body thickness, upper arm length, and hand length.In conclusion, complaints of musculoskeletal disorders were identified as very painful, located at the point of complaint of the waist. The rice planting tool has ergonomic dimensions, the height of the tool is 88.1 cm, the diameter of the tool handle is 8.13 cm, the length of the handle is 11.4 cm, and the distance between the handle and the brake is 9.32 cm. The dimensions of the rice seed bag are 33.70 cm wide, the distance between the front and back of the bag is 23.19 cm, the bag height is 35.64 cm, and the bag length is 20.5 cm.

Modeling heart rate of individual and team manual handling with one hand using generalized additive mixed models

ObjectivesDespite the fact that team manual handling is common in different working environments, the previous studies in this regard, particularly those with a physiological approach are quite limited. The present study is an attempt to model the heart rate (HR) of individual and team manual handling with one hand.MethodsTwenty-five young men (aged 21.24±1.42 year) volunteered for this study. The experiments included individual and two-person handling of the load with three different weights with and without height difference. The participants’ HR was registered at the end of the route by a chest-strap pulse monitor and a polar watch according to the manufacturer's recommendation. A multivariate Generalized Additive Mixed Model (MGAMM) was used for modeling heart rate based on explanatory variables of workload, carry method, HRrest, body weight, height, knee height, shoulder height, elbow height, and hand height. The significance level of the tests was considered as <0.05.ResultsBased on the MGAMM, the average HR (bpm) of participants increased as the workload increased (P<0.001). Handling the load with a taller person increased the HR compared to shorter partner (P<0.001). Moreover, the nonlinear associations of the resting HR (P<0.001), body weight (P<0.001), height (P<0.001), and the height of elbow, hand and knee (P<0.001) were statistically significant. The adjusted R2 of the model was 0.89 indicating that about 90 percent of the variations observed in HR could be explained by the variables in the model. This was greater than the model considering only linear effects (R2 =0.60).ConclusionThe model obtained in this study can predict the heart rate of individual and team one-handed handling with high validity. The MGAMM can be used in modeling heart rate in manual handling.

Appropriate and Efficient Technology System Approach in Product Design to Reduce Musculoskeletal Disorders

The process of planting corn still uses the traditional method of using wood that is sharpened at the end while holding a bag containing corn seeds, the process of planting corn is carried out by bending the body continuously, this process is carried out minimum two workers. This process causes performance to be not optimal, besides that the work process will accelerate fatigue and cause many complaints, pain, and injuries. This study aims to measure anthropometric data of standing shoulder height, standing elbow height, forearm length, hand width, and hand grip diameter. The results of these measurements are then used to design products for these farmers. This measurement also includes a Nordic Body Map (NBM) questionnaire to determine of pain in the corn planting process. The subjects in this study were 30 people, after calculation and data processing, the right size for the product design is obtained which consists of a tool height of 140 cm, a handle height of 105 cm, a diameter of grip 5 cm, grip length of 9 cm, an operator distance with a tool of 45 cm, then the tool assembly process and testing process will be carried out.

Perbaikan Postur Tubuh Pekerja UMKM dengan Intervensi Ergonomi Melalui Perancangan Kursi Fleksibel

Fatigue among workers is something that often occurs and the cause needs to be known, this condition occurs in Bojonegoro Cassava Chips MSMEs located in Depok. The processing are peeling, washing, chopping, soaking to packaging involves human labour with manually simple tools. The purpose of this study is to analyse the posture of workers at each workstation and to develop a proposal for improving work methods to minimise the risk of injury. The methods used are Nordic Body Map, anthropometric, design with Autocad and Autodesk Inventor. The results of the anthropometric are: elbow height in standing position 105.8 cm, thigh length from the buttocks to the tip of the knee 67.16 cm, knee height in both standing and sitting positions 51.39 cm, knee height from the floor to the base of the lower thigh 43.79 cm and hip width 50.55 cm.

Establishing an anthropometric database: A case for the Portuguese working population

Up-to-date anthropometric databases can help design appropriate workstations and equipment, reducing occupational accidents and disorders. The primary aim of this study was to create a company database to support the hypothesis that the latest anthropometric database for the Portuguese working population was outdated. Through the traditional manual measurement method, this work collected data on 27 dimensions from 343 workers in an industry in Northern Portugal. The interclass correlation coefficient showed high agreeability intra- and inter-evaluators with average values of 0.940 and 0.950, respectively. Socioeconomic aspects of the sample population, including gender, immigration, and age, were evaluated. Statistical analysis included correlations between the 27 anthropometric dimensions, age, and Body Mass Index (BMI). Among the main findings, men displayed larger average dimensions than women except for hip breadth, and female body measures decreased more with age than males. Men were 1.6 times more likely to be overweight than women, whereas women were twice more likely to be obese. Concerning working shifts, individuals on the night shift showed an increased tendency to be overweight or obese (BMI>25). Since the previous database employed a different method (photogrammetric), it was possible to compare only five dimensions (stature, knee height, elbow height, hip breadth, and abdominal depth) through mean absolute differences. Variations in the population stature and knee and elbow heights support this work's hypothesis and underscore the need to establish and update the Portuguese anthropometric database with a reliable and reproducible method.

An Ergonomically Assessment of Manually Operated Maize Planter for Male Operators

A study was conducted at Sam Higginbottom University of Agriculture, Technology and Sciences (SHUATS), Prayagraj, (U.P), India on (2022–23) for ergonomic assessment of manually operated maize planter for male operators. Anthropometric data of age groups operators of (25–28, 29–32, 33–36, and 37–40 years) was determined. Heart rate, oxygen consumption rate, energy expenditure rate, and body part discomfort score of age groups were determined during working on maize planter. Anthropometric data of stature, arm length, standing eye height, knee height, and elbow height, and body mass index were determined for different age groups. Heart rate, oxygen consumption rate, energy expenditure rate, and body part discomfort score were increased when age groups increased at weight sample of seed (1.5 and 2.0 kg). Heart rate, oxygen consumption rate, energy expenditure rate, and body part discomfort score of 25–28 years age groups were found minimum and varied from 92–101 b min-1, 0.36–0.37 l min-1, 8–10.03 kJ min-1, and 20.75–22.02 respectively on working. Heart rate, oxygen consumption rate, energy expenditure rate, and body part discomfort score of 37–40 years age groups were found maximum and varied from 140–143 b min-1, 0.90–0.93 l min-1, 19–20 kJ min-1, and 51.23–53.87 respectively during working operators on maize planter at different weight samples.

Discrepancy between pupils' body and classroom furniture in elementary schools: A case study in the Republic of Kosovo.

Primary school children spend quite a lot of time sitting in classrooms. For this reason, it is necessary to make a scientific analysis of children's body dimensions and compare them with the furniture dimensions where they sit. The main aim of this paper is to present anthropometric data for pupils in primary schools in the Republic of Kosovo and give recommendations for school furniture design. Measurements were made in the public schools of four different regions in the Republic of Kosovo. The study includes 720 children from 12 different elementary schools with first and fifth graders (6-11 years old). Twelve body parts were measured: Stature, sitting height, shoulder height, lower leg length, hip breadth, elbow height, buttock-popliteal length, thigh clearance, eye height, shoulder breadth, and knee height. The descriptive data are calculated in terms of average, standard deviation, and 5th, 50th and 95th percentile. We recommend that the competent authorities in the Republic of Kosovo consider improving the infrastructure of primary schools in terms of furniture size according to the findings presented in this study. The information presented in this paper on pupils' anthropometry and the proposed dimensions for school furniture can be used by various bodies in Kosovo including, but not limited to: Ministry of Education Science and Technology, Ministry of Trade and Industry of Kosovo and furniture manufacturing industries as basic information for suitable furniture design for primary school children, as well as school principals to help in furniture selection.

Effect of number of college baseball pitching on movement, performance, physical strength, physiological, and psychological functions of pitchers

This study aimed to examine the effects of college baseball pitching on movement, performance, physical strength, and physiological and psychological functions of pitchers. The participants were 10 right-handed male pitchers from the University baseball team. The number of pitches were 15 per inning and 135 per nine innings. Ball speed and accuracy were measured for each pitching. The grip strength, back muscle strength, and standing long jump were measured before and after all pitches. Blood lactate levels were measured before pitching, at the end of the 5th and 7th innings, and at 3rd, 6th, and 9th minutes after pitching. The participant’s heart rate and subjective exercise intensity were measured at the beginning and end of each inning using the Borg scale measurement. Five high-speed cameras were used to capture the pitching motions. The displacement of the center of gravity, lower and upper limb joint angles, and the speed of each segment were calculated. The baseball speed and accuracy did not change with the increased number of pitches. However, the grip strength decreased. Although blood lactate and heart rate were not altered, subjective exercise intensity was increased. The lower limb kinematics remained unchanged; however, elbow height was reduced in the upper limb. These results suggest that highly competitive pitchers experience subjective fatigue with the increased number of pitches, however, they maintain pitch performance, speed, and accuracy without altering whole-body physiology and lower-body function and form.

Comparison of frame index reference percentiles in Argentine and European boys and girls.

The frame index (FI), based on measurements of elbow breadth and height, is the body frame size parameter most frequently used in child and adolescent populations to assess skeletal robustness. In 2018, the first FI reference percentiles were elaborated with data of boys and girls aged 0-18 years from different European populations. In Argentina, the FI reference values were published in 2022. The present study aims to compare the Argentine (AR) and European (EU) FI reference percentiles to evaluate possible variation in bone robustness between populations. The values of the 3rd, 50th and 97th percentiles of the AR and EU FI references for boys and girls aged 4-14 years were compared using the Wilcoxon test (p < .05). Percentage differences between means (PDM) were calculated to analyze the magnitude of the differences between both references. The R 3.2.0 program was used to plot the percentile curves. The FI reference values were lower in AR than in EU in both the 3rd and the 50th percentiles, regardless of sex and age. Conversely, the AR reference values of the 97th percentile were higher than the EU values at most ages. The comparison of the AR and EU FI references showed similar age and sex growth patterns. However, differences in percentile values between populations were observed, highlighting the importance of having local references for the evaluation of skeletal robustness.

Improving Workers' Musculoskeletal Health During Human-Robot Collaboration Through Reinforcement Learning.

This study aims to improve workers' postures and thus reduce the risk of musculoskeletal disorders in human-robot collaboration by developing a novel model-free reinforcement learning method. Human-robot collaboration has been a flourishing work configuration in recent years. Yet, it could lead to work-related musculoskeletal disorders if the collaborative tasks result in awkward postures for workers. The proposed approach follows two steps: first, a 3D human skeleton reconstruction method was adopted to calculate workers' continuous awkward posture (CAP) score; second, an online gradient-based reinforcement learning algorithm was designed to dynamically improve workers' CAP score by adjusting the positions and orientations of the robot end effector. In an empirical experiment, the proposed approach can significantly improve the CAP scores of the participants during a human-robot collaboration task when compared with the scenarios where robot and participants worked together at a fixed position or at the individual elbow height. The questionnaire outcomes also showed that the working posture resulted from the proposed approach was preferred by the participants. The proposed model-free reinforcement learning method can learn the optimal worker postures without the need for specific biomechanical models. The data-driven nature of this method can make it adaptive to provide personalized optimal work posture. The proposed method can be applied to improve the occupational safety in robot-implemented factories. Specifically, the personalized robot working positions and orientations can proactively reduce exposure to awkward postures that increase the risk of musculoskeletal disorders. The algorithm can also reactively protect workers by reducing the workload in specific joints.

APPLICATION OF ERGONOMICS PRINCIPLES IN SEWING CLOTHES AMONGST FASHION DESIGNERS IN POST COVID 19 PANDEMIC IN OGBA/EGBEMA/NDONI LOCAL GOVERNMENT AREA OF RIVERS STATE.

The study focused on application of ergonomics principles in sewing cloth amongst fashion designers in PostCOVID Pandemic in Rivers State. Specifically the study determined hunching over a sewing machine, useanti-fatigue mat, and keep working surfaces/table at elbow height. Research design was a descriptive survey.Three research questions guided the study. Area of the study was Ogba/Egbema/Ndoni Local GovernmentArea of Rivers State. Population was made up of 96 Fashion Designers in ONELGA. Multi-stage samplingtechnique methods were used to select 45 Fashion Designers. Questionnaire was used for data collection.Data were analyzed using Mean and Standard Deviation. Results of the study was five (5) questions on avoidhunching over a sewing machine, these includes the use of Appropriate Posture (????= 3.15), Use ofComfortable Stool (???? 2.96), Stool should be Placed on Flat Surface (???? 3.25) and others. There are Five (5)Questions on keep working surfaces at elbow height, these includes Cutting Tables (???? 3.42),Ironing Table(???? 3.20), Weaving Table (???? 2.95) and others. And five (5) questions on the use of anti-fatigue mat theseincludes avoid the use of Hilly Shoes (???? 2.92), Worn-Out Shoes (???? 3.00), Rough Floor (???? 3.10) and others.Based on these finding, the study recommended that the fashion designers should avoid hunching over asewing machine in order to prevent musculoskeletal pains, they should use suitable table/surfaces in cutting,ironing and sewing clothes as this will reduce fatigue stress and other illness and also they should use antifatigue mats in their fashion homes as it will allow them to move to and fro without getting stressed out.

Effects of tool grip span, workpiece orientation, moving direction, and working height on two-handed torque strength and subjective measures.

Using both hands is regularly needed for force/torque exertions in many activities, especially when using hand tools. To investigate the effects of tool grip span, workpiece orientation, moving direction, and working height on two-handed wrist U/R deviation torque strength, usability, comfort, and discomfort while using locking pliers. Participants (n = 22) took part in an experimental study which evaluated the effects of tool grip span (4.5-6.5 cm), workpiece orientation (transverse/sagittal), moving direction (clockwise (CW)/counterclockwise (CCW)), and working height (shoulder/elbow/knuckle) on two-handed wrist U/R deviation torque, (dis)comfort, and usability while using locking pliers. The results showed no significant effect of tool grip span on wrist U/R deviation torque strength, but the locking pliers with 4.5 cm handle grip span led to more comfort and better usability. The two-handed wrist U/R deviation torque strengths were significantly higher in sagittal plane than in transverse plane, and in CW direction than in CCW direction. The highest values of two-handed wrist U/R deviation torque strength in sagittal and transverse planes were exerted in knuckle and elbow heights, respectively. The findings can be used to develop guidelines and recommendations with regard to daily and occupational activities which require the use of both hands for force exertion with manual hand tools.

Ergonomic Evaluation of Pruning in Simulated Greenhouse conditions

Greenhouse is a space-efficient structure for farming. The workers stretch their bodies to perform operations away from the body and at different heights. The present study aimed to assess the physiological and postural discomfort because of the varied working heights and horizontal distances and also attempts to suggest suitable interventions to overcome them. The current study investigated the physiological and subjective measures of exertion while working at different heights (elbow height, shoulder height and above shoulder height) and horizontal distances (30, 45, 60, and 75 cm) with two different pruning tools under simulated laboratory conditions. All the physiological parameters and responses against different conditions were recorded from six male participants and analyzed as per experimental requirements. The outcome of the present study demonstrated that physiological cost and subjective measure of exertion varied significantly with the variation in heights and horizontal distances. Heart rate, oxygen consumption, energy expenditure, and perceived exertion were significantly higher “above the shoulder height” than elbow and shoulder height. Similarly, all the measured physiological parameters and Rating of Perceived Exertion (RPE) exhibited a gradual increase with increasing the distance from the worker’s body. The study also revealed a differential effect of tools used while performing the pruning work. Further, the multiple regression analysis helped to predict Relative Cardiac Cost from RPE and other evaluated physiological parameters. Overall, findings from the current study concluded that conventional pruning activities need workspace optimization and ergonomic intervention to select pruning tools and achieve the desired productivity with minimum Musculoskeletal Disorders (MSDs).

Evaluation of Non-Wheat Noodle Machine Design with An Ergonomic Approach

Designing machines without involving the human factor can cause users discomfort, fatigue, and health problems. Ergonomic criteria when designing machines can increase user effectiveness. PT. Noang Prima Utama uses an extruder to produce pasta under the “LocaPasta” brand. Complaints of pain in the neck and back for 1-3 days due to standing position, bending down, and arms reaching forward for a long-time during production. The research objective was to evaluate the extruder design using the anthropometric method. Anthropometric data were tested for uniformity, data adequacy, and the determination of percentiles. Machine dimensions were compared with user anthropometer data for design improvement. When feeding materials into the hopper, the operator’s working posture needed to be more ergonomically adequate due to raised arms and pushing the material bit by bit (repetitively). The evaluation of the machine design based on anthropometric dimensions reveals several improvements. The redesigned extruder machine includes changes such as adjusting the footstep height to 27.7 cm so that the height of the setting box to 120.95 cm from the footstep (adjusting to standing shoulder height), allowing rotation of the setting box and the hopper height from the footstep is parallel to the standing elbow height which is 92.1 cm. With the implementation of the new prototype, the operator’s working posture no longer involves bending over while adjusting the machine, and the arms can comfortably rest on the hopper while feeding the material.

PENGEMBANGAN DESAIN MESIN PEMIPIL JAGUNG TENAGA MATAHARI

Agricultural land in Juwiring Village in the Cepiring sub-district, Kendal Regency, depends on rainwater for irrigating its rice fields. Rice fields in Juwiring village are planted with corn. In one year, farmers in Juwiring village can harvest corn 3 times. By using a solar powered corn sheller machine, farmers can save Rp. 20,000 per sack because there is no need to pay any more for the corn sheller, besides that with this machine you can save fuel because the fuel uses abundant solar power and the solar corn sheller machine is an environmentally friendly machine because it doesn't emit air pollution. In the previous study (Ekoanindiyo, 2020), from the results of the previous design there were several inputs from users, namely the hole for inserting corn was not too high so that farmers had to squat to put corn in. The diameter of the hole is not big enough so if there is corn with a large diameter then the corn cannot enter the hole. For the corn shelling process, it is inserted one by one into the hole so that the shelling process will take a long time. For the disposal site on the previous sheller machine there were two drain holes, namely the disposal of corncobs and the disposal of corn. When the machine is running, the corn cob does not come out of the cob drain hole but comes out together with the corn. The cobs and corn should come out separately, the corncob coming out of the corncob hole while the corn will come out of the corn dispensing hole. In the hole in the sheller machine place the sack so that the corn and corncobs can enter the sack. Development of a corn sheller machine design to improve the previous machine design including farmers in shelling corn do not need to squat so as to reduce fatigue when shelling. The holes for the cobs and corns to come out can be separated. The diameter hole for inserting corn is rather wide so that all sizes of corn can enter and when inserting corn into the machine you don't need one but you can do it directly in large quantities so that the shelling process can be completed more quickly. The research approach is with interviews and observations using anthropometric data of users. Using measurements of the body dimensions of farmers in the Village Farmer Group in Cepiring District as many as 5 people with elbow height body dimensions. The conclusion related to the development of the corn sheller machine design is the development of the corn sheller machine design using anthropometric data on the body dimensions of farmers in the Village Farmer Group in Cepiring District as many as 5 people. The body dimensions used are elbow height body dimensions. In this measurement the data used is the average or 50th percentile data or the average population so that users of moderate to tall stature can reach or use the machine