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Rangga Sidiq Permana; Triyana Triyana; Fahmi Husaeni; Irfan Bukhori; Khotibul Umam +1 more

Jurnal Sains dan Teknologi 2024 Fakultas Teknik Universitas Cenderawasih

In the cracker production process at UMKM Kerupuk Subur, the process of drying crackers involves human labor so there is a risk of injury because when drying crackers, workers have to bend and squat. This study aims to determine the occupational dangers of workers during the drying process of crackers in UMKM Kerupuk Subur and provide recommendations for improvement. The method used to analyze body posture is Rapid Entire Body Assessment (REBA) then for improvement recommendations using an anthropometric approach with percentile calculations to determine dimensions as parameters for designing the work aids needed in the form of an ergonomic drying table. The results of REBA's analysis show a score of 9 with a high or high level, meaning there is a high risk of injury so immediate improvement is needed. The results of the design of an ergonomic drying table were then simulated through Inventor software which described the position of the worker's posture when carrying out cracker drying activities with a perpendicular working position. The results of the assessment of the working posture of the worker after the improvement showed a decrease in the risk level from medium to low and negligible.

Atmaja, Danuditya Purna; Ghurri, Ainul; Andriana, Laily Mita; Rosanti, Dwike Primadita; Ningrum, Selfya

Jurnal Pengabdian Kepada Masyarakat 2024 Sekolah Tinggi Pastoral Kateketik Santo Fransiskus Assisi

Sports injuries are injuries that occur during training, competition or after exercise. Sports injuries occur due to the inability of tissues (muscles, joints, tendons, skin) and other organs to receive training loads during exercise. Factors that influence the occurrence of injuries, namely individual conditions (age, gender, character, experience, warm-up, posture abnormalities), sports facilities (shape and size of equipment), sports characteristics (type of sport), physical environment (temperature and humidity). If not treated immediately, it can cause cerebral vascular disorders (heat stroke) and immediately do an examination if you experience an injury during exercise, so that you can get fast and proper treatment. On this occasion, lecturers from the Faculty of Health Sciences, Anwar Medika University (UAM) Sidoarjo held counseling activities for vocational students in the Krian Sidoarjo sub-district area. The purpose of this counseling is expected so that later SMK students can play an active role in conveying and implementing the knowledge in this activity to help the community around their place of residence.

Syah Fara Dillasani Sirait; Mula Tarigan; Dina Afriani

Jurnal Kesehatan dan Kedokteran 2024 Lembaga Pengembangan Kinerja Dosen

Pleural effusion is a pathological condition characterized by the accumulation of fluid in the pleural cavity, which can cause shortness of breath, chest pain, and other complications. This study aims to evaluate evidence-based nursing care for patients diagnosed with pleural effusion using a case report approach. The assessment was conducted holistically, including interviews, observations, and physical examinations. The results show that nursing interventions combining respiratory physiotherapy, such as breathing exercises, mobilization, and patient education, along with medical care, are effective in reducing shortness of breath and improving chest expansion in patients. The management of pleural effusion involves a multidisciplinary approach, including early diagnosis through thoracentesis and imaging, as well as supportive therapies such as respiratory physiotherapy, pleural fluid drainage, and medical interventions tailored to the underlying etiology. This study also highlights the critical role of respiratory physiotherapy in accelerating patient recovery, including deep breathing exercises, chest mobilization, and posture correction. The evaluation indicates that, although the patient’s respiratory problems were not completely resolved, there was significant improvement in overall health status. This study underscores the importance of applying a multidisciplinary approach to improve the quality of life for patients with pleural effusion.

Nadhila Khairunisa; Zidni Imanurrohmah Lubis; Rizal Septian

Jurnal Pengabdian Masyarakat 2024 Lembaga Pengembangan Kinerja Dosen

Physiotherapy is a form of health service aimed at individuals and communities. The scope of physiotherapy services is to develop, maintain, and restore movement and body function throughout the life span. This service can be done through a promotive, preventive, curative, and rehabilitation approach. One of the many cases of physiotherapy is musculoskeletal complaints. Musculoskeletal complaints can occur due to habits carried out during work. If the body position is not correct and maintained for a long duration, it can trigger the emergence of musculoskeletal complaints. Work that lasts for a long time will decrease a person's body ability and can cause complaints and disorders in the body, especially musculo problems, one of which is neck pain. Neck pain is a multifactorial disease and is a major problem in society today. Some risk factors for neck pain, such as old age, female gender, low social support, and non-ergonomic work postures. The method of community physiotherapy activities used is to provide health promotion counseling and education regarding physiotherapy management in the form of stretching that can be done independently. The media used are leaflets and posters. The purpose of this counseling is to provide education and physiotherapy treatment related to neck pain in Keripik Tempe Sanan workers so that they can improve the complaints that have been felt and minimize the occurrence of injuries.

Nadhila Khairunisa; Zidni Imanurrohmah Lubis; Rizal Septian

Jurnal Pengabdian Masyarakat 2024 Lembaga Pengembangan Kinerja Dosen

Physiotherapy is a form of health service aimed at individuals and communities. The scope of physiotherapy services is to develop, maintain, and restore movement and body function throughout the life span. This service can be done through a promotive, preventive, curative, and rehabilitation approach. One of the many cases of physiotherapy is musculoskeletal complaints. Musculoskeletal complaints can occur due to habits carried out during work. If the body position is not correct and maintained for a long duration, it can trigger the emergence of musculoskeletal complaints. Work that lasts for a long time will decrease a person's body ability and can cause complaints and disorders in the body, especially musculo problems, one of which is neck pain. Neck pain is a multifactorial disease and is a major problem in society today. Some risk factors for neck pain, such as old age, female gender, low social support, and non-ergonomic work postures. The method of community physiotherapy activities used is to provide health promotion counseling and education regarding physiotherapy management in the form of stretching that can be done independently. The media used are leaflets and posters. The purpose of this counseling is to provide education and physiotherapy treatment related to neck pain in Keripik Tempe Sanan workers so that they can improve the complaints that have been felt and minimize the occurrence of injuries.

Dzaki Syahriar Ahmad; Rizqi Novita Sari

Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika 2024 Asosiasi Riset Ilmu Teknik Indonesia

Intensive computer use without ergonomic considerations poses risks of Work-Related Musculoskeletal Disorders (WMSDs) for PT. XYZ employees, who often work in uncomfortable positions. This study identified risk factors using the Nordic Body Map and ROSA methods. Results revealed high complaints in the upper neck and right shoulder, with 4 out of 5 employees at high risk due to non-ergonomic work postures and facilities. Recommendations include workplace layout improvements, posture training, and stretching routines to reduce WMSD risks and enhance employee well-being.

Yenni Fransiska B; Nur Azizah; Rosmani Sinaga

Jurnal Siti Rufaidah 2024 PPNI UNIMMAN

Background: Lower back pain is common in pregnant women, especially in the third trimester, due to physiological changes such as weight gain, shifts in the body’s center of gravity, and ligament relaxation. Prenatal exercise is a non-pharmacological method that improves flexibility, strengthens muscles, and enhances posture, reducing lower back pain. However, its implementation remains limited due to a lack of education and supporting facilities. Objective: This study evaluates the effect of prenatal exercise on lower back pain reduction in third-trimester pregnant women at the Independent Practice of Midwife Novia Br Karo, Sunggal District, Deli Serdang Regency. Method: A pre-experimental design with a one-group pretest-posttest approach was used. The study included 32 third-trimester pregnant women experiencing lower back pain. Prenatal exercise was provided, and pain levels were measured before and after using an observation sheet. Results: Before the intervention, most respondents (53.1%) reported moderate pain. After prenatal exercise, the majority (59.4%) experienced reduced pain in the mild category. The Wilcoxon test yielded a Z value of -3.122 with p = 0.002 (p < 0.05), indicating a significant effect of prenatal exercise in reducing lower back pain. Conclusion: Prenatal exercise effectively reduces lower back pain intensity in third-trimester pregnant women. It should be promoted as a non-pharmacological intervention for pregnancy-related back pain and incorporated into maternal health programs.

Sefrilianita Sefrilianita; Heriziana. Hz

Antigen : Jurnal Kesehatan Masyarakat dan Ilmu Gizi 2024 LPPM STIKES KESETIAKAWANAN SOSIAL INDONESIA

The application of ergonomics in the work environment is one of the efforts to ensure the health and safety of an individual or group in carrying out work in a work area that may be at risk of work accidents. Based on data from the Environmental Health and Occupational Safety Installation, musculoskeletal disorders experienced by employees of the "X" Hospital in Palembang in 2022, which stated that 318 employees of the "X" Hospital aged 31-40 years (38.1%), gender (69.2%), length of service <10 years (52.2%), length of service <8 hours (886.2%) with complaints of musculoskeletal disorders in the neck (64.5%), knees/ankles (58.7%), complaints of musculoskeletal disorders (81.4%), mild pain (scale 1-4) 59.0%, mild complaints 49.0%, This study aims to determine the factors related to the incidence of musculoskeletal disorders in Laundry Officers at the "X" Hospital in Palembang in 2024. The subjects of this study were all Laundry Officers at the "X" Hospital in Palembang on July 15-27, 2024. The population and sample in this study were 37 laundry officers. This study uses a quantitative method with analytical observation research and a cross-sectional approach. Furthermore, the collected data was analyzed using the Chi Square Test with a significance level (p value) <0.005. The results of the study were that there were factors related to the incidence of Musculoskeletal Disorders in Laundry Officers with Age (p value 0.005), Gender (p value 0.001), Length of Service (p value 0.001), Work Posture (p value 0.002), and Length of Service (p value 0.000). The conclusion of this study is that there is a relationship between age, gender, length of service, work posture, and length of service with the incidence of Musculoskeletal Disorders in Laundry Officers at RS "X" Palembang in 2024. It is recommended that the Laundry Installation section of RS "X" Palembang conduct a safety briefing to reduce the risk of accidents and provide information on the importance of individual health.

Dhea Armelia Suryani; Rakhmad Rosadi; Ratna Vidya Amelia

FUNDAMENTUM : Jurnal Pengabdian Multidisiplin 2024 Asosiasi Peneliti Dan Pengajar Ilmu Sosial Indonesia

Good posture during activities is a body position that uses little energy to keep the body balanced and comfortable. When the body position tends to be bad, it will also result in incorrect posture if done repeatedly during activities. The impacts that can occur are postural abnormalities such as kyphosis, scoliosis, and lordosis. Incorrect body position during activities, inappropriate forms of learning support, and incorrect use of backpacks can hurt body posture. If the body posture is in good condition, it will support the students' learning activities. Conversely, if the body posture is in bad condition, it will also have an impact on their education. This counseling activity aims to increase the knowledge of the students regarding how to have good body posture. To make it easier for the students to understand the things conveyed, the presentation of the material was carried out using the leaflet method as a printed media which was distributed to 40 students at SMPS Al-Fattah. The results of the counseling were seen through pre-test and post-test data that had been processed so that in this counseling activity it can be concluded that there was an increase in students' knowledge about how to have good and correct body posture.

Sunardi Sunardi; Nova Pangastuti; Sepriandi Parningotan

Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan 2024 Asosiasi Riset Ilmu Teknik Indonesia

In the current era of globalization, information technology is developing rapidly. As for technology, which is equipment created to make human work easier, when achieving good progress in the work process of PT Plaza Auto Prima, it is absolutely necessary to have a technique that supports and provides satisfactory service for customers. Based on this, the author tries to analyze a method used when employees work in the Plaza Auto Prima environment regarding the work ergonomics they currently apply at PT Plaza Auto Prima, which to date has not seen any improvement. The method used is direct observation and assessment of work posture using the REBA method. The research subjects were mechanics who worked in the installation or removal of car wheels. The data obtained is analyzed to determine the REBA score and the level of risk faced by workers. The research results show that the mechanical work posture at PT Plaza Auto Prima (Toyota) Tendean has significant problems. Analysis using the REBA method produces a final score of 8, which indicates a high risk level and requires immediate improvement. Factors that contribute to this high risk include the lack of ideal work ergonomics and limited supporting equipment. This increases the risk of injury and illness to the worker's body in the future. After improvements were made by adding trolley service tools, the way of working became more ergonomic so that the REBA score dropped to 2, which shows that some of the movements carried out were in the safe category or did not cause muscle injuries in the future. Therefore, the presence of bodily abnormalities that arise from work cannot be separated from the existence of supporting equipment to facilitate the removal of certain parts so as not to cause abnormal bodily effects. Planning for the procurement of a particular tool needs to be done as soon as possible so that workers do not suffer the effects of bodily abnormalities. In this way, the author took analytical steps using the Rapid Entire Body Assessment (REBA) method, which is the best solution to solve the problems that exist in this company to support workers so they can work all the time without any complaints about their bodies.

Rifka Alivia; Ferida Yuamita

JURNAL ILMIAH TEKNIK INDUSTRI DAN INOVASI 2024 CV. ALIM'SPUBLISHING

PT. Indonesia Plafon Semesta is a company engaged in manufacturing, this company produces various kinds of PVC ceilings. Problems faced by PT. Indonesia Plafon Semesta is the activity of making PVC ceilings in the packing section, where the activity conditions or workers' posture is not good. When packing by squatting and bending, the position is less ergonomic, resulting in excessive force exertion and the risk of injury. This research aims to determine the level of complaints felt by workers in body parts by identifying them using the Nordic Body Map (NBM), Manual Task Risk Assessment (ManTRA) to determine the level of risk experienced by workers and knowing how many angles are formed. Rapid Entire Body Assessment (REBA) is used to calculate worker posture and provide a score of the worker's proposed posture using Anthropometry. Data processing was carried out using NBM calculations for workers who had the highest score of 51 and the lowest 44. Knowing the level of risk experienced by workers with Mantra protection with the back, forearms, neck and wrists > 15 and the angle formed in the REBA calculation using score 10. Improvement of the proposed posture with Anthropomerti with a TPO calculation of 32.5 cm and JTD cm of 69 by paying attention to the object being worked on with REBA calculation results having a score of 7.

Kurniawati Putri Al Saudi; Sri Sunaringsih Ika Wardojo; Bonita Suharto

Jurnal Mahasiswa Ilmu Kesehatan 2024 STIKes Ibnu Sina Ajibarang

As cities in Indonesia continue to develop, there will inevitably be ignorance of the elderly's knowledge of their own health. For example, elderly people with working backgrounds are generally at risk of lower back pain, pinched nerves, complaining of various muscle tension problems and so on which can disrupt their daily activities. This problem is caused by incorrect positioning while working, such as frequently pushing, lifting, bending, sitting or standing for long periods of time and unergonomic body posture while working. Physiotherapy outreach activities related to increasing knowledge of daily activity disorders, efforts to educate the elderly regarding activity disorders, especially about definitions, signs of symptoms, causes, prevention, and daily activity activity therapy independently after work to reduce the symptoms suffered. This outreach activity uses leaflets as media, containing educational material for the elderly, then education and training depending on the location of the disorders the elderly complain of. The counseling activities at the Mobile Health Center Posyandu which are held every day by the Kendalsari Community Health Center, Malang City, went smoothly, the response was good, full of enthusiasm. The results obtained show the results of the pretest so that there is increased knowledge among workers which shows that workers have knowledge and insight regarding prevention and independent treatment after work. The results obtained showed that most of them were mild complaints, so that the majority of complaints involving disruption of daily activities were experienced by women, 68% of which were indicated by questionnaires for 25 elderly people at the Kendalsari Community Health Center and Posyandu for the Elderly in Malang City.

Dina Azizah Wulandari; Rakhmad Rosadi; Lina Sriyatun

Ekspresi : Publikasi Kegiatan Pengabdian Indonesia 2024 Asosiasi Seni Desain dan Komunikasi Visual Indonesia

Changes in the musculoskeletal system during the third trismester of pregnancy cause changes in body weight, abdominal muscle elasticity, and center of gravity which affect the balance of pregnant women. Back pain in pregnancy can be detrimental to the quality of life of pregnant women and is caused by changes in posture, hyperlordosis, paraspinal muscle tension, and decreased blood flow to the spine. Physiotherapy is a non-pharmacological solution by applying massage and stretching techniques. Massage helps relax muscles, reduce pain, increase blood flow, and improve muscle flexibility. Stretching plays a role in reducing pain, increasing flexibility, muscle strength, and preventing deformity. This activity is carried out by conveying physiotherapy information through leaflets as a promotional medium, pre-test, post-test, and questions to pregnant women to measure knowledge. The results of the activity showed active participation from 12 pregnant women class participants with positive responses to the material presented. Interesting material accompanied by demonstrations of massage and stretching techniques helps increase knowledge of pregnant women. Evaluation before and after the activity showed an increase in knowledge from 5% to 100%, indicating the success of the extension activity.

Jumrahwaty Parhusip; Ridesman Ridesman; Riska Susanti Pasaribu

Jurnal Ilmu Kesehatan Umum, Psikolog, Keperawatan dan Kebidanan 2024 Asosiasi Riset Ilmu Kesehatan Indonesia

Mobilization is a basic human need required by individuals to carry out daily activities in the form of joint movement, posture and gait in order to meet activity needs and maintain health. The World Health Organization (WHO) says that births by caesarean section are around 10-16% of all births in developing countries, in the last 30 years the incidence of caesarean sections has increased very rapidly, for many reasons but some also don't have the right reasons, just because the patient wants the operation or the doctor wants an easy way, in Australia around 16% to 20% of the reason for the high number of caesareans in the United States is because most obstetricians. The aim of the research was to analyze the relationship between early mobilization post cesarean section and the surgical wound healing process in the postpartum room at Kartika Pulomas Hospital. The type of research used is qualitative analytic with a cross sectional approach design. The sampling technique uses accidental sampling. The number of samples used was 61 people. There is a relationship between early mobilization post cesarean section and the surgical wound healing process in the postpartum room at Kartika Pulomas Hospital. The paired sample t-test showed a value of p = 0.002, meaning p<0.05. Recommendations for hospitals need to have a policy for early mobilization of patients after caesarean section. Early mobilization accelerates wound healing and shortens the period of hospital treatment, so that it is a promotion for the hospital, namely: establishing independent hospitals as the main choice with quality services.  

Togi P. Nababan; Robert KA Simangunsong; Roy Josep Hutagalung

Abstrak : Jurnal Kajian Ilmu seni, Media dan Desain 2024 Asosiasi Seni Desain dan Komunikasi Visual Indonesia

This research aims to determine singing techniques in ama choir (men's choir) starting from body posture, breathing, articulation, phrasing and intonation. This research focuses on the application of vocal intonation techniques with the aim of improving singing ability so that you can reach the high and low notes in songs. The method used in this research stage is descriptive qualitative method. The research stages carried out in collecting data were: observation, documentation, video and interviews. The object of this research is the members of the Judika choir at HKBP Nagasaribu IV, totaling 25 people, divided into tenor one, 8 people, tenor two, 7 people, bass one, 5 people, and bass two, 5 people. In the implementation process, researchers held six meetings providing material and singing practice according to correct vocal technique. The results of this research show that the application of intonation techniques in the Judika choir greatly influences and improves the quality of the choir's singing, where members of the Judika choir are more relaxed and relaxed in reaching the high and low notes of the song being sung. Based on this research, it is recommended that you continue to sing using correct intonation so that the quality of the choir increases and can become an example for other ama (men's choirs).    

Irfan Nawazirul Lubis; Nanang Mulyana

Jurnal Ilmu Pendidikan 2024 Lembaga Pengembangan Kinerja Dosen

This research aims to determine the quick smash ability of volleyball players at the District Achievement Development Club. Brebes. This research uses a survey method with test and measurement techniques. The results of the research show that the quick smash ability of volleyball players at the Bina Achievement Club is still not satisfactory, especially in terms of power smash, vertical jump and ball placement. However, by increasing the portion of training and motivation, the quick smash ability of volleyball players at the Achievement Development Club can be improved. This research also found that the factors that influence the success of a quick smash are speed, timing, leg muscle explosive power and body posture. The results of this research can be used as a reference to improve the quick smash ability of volleyball players at the Achievement Development Club.

Ikbal Anggara

Nusantara: Jurnal Pengabdian kepada Masyarakat 2024 Pusat Riset dan Inovasi Nasional

The increasing trend of working from home since the COVID-19 pandemic has introduced new occupational health challenges, particularly regarding ergonomics. This study aimed to improve ergonomic awareness through structured education on proper work postures for home-based workers. Using a one-group pretest-posttest design, the research evaluated the effectiveness of educational interventions based on behavior change theories. Results demonstrated that interventions using the Trans-Theoretical Model (TTM) reduced Rapid Office Strain Assessment (ROSA) scores from 5.65 to 3.95 and decreased forward head posture by 9°. Similarly, participatory ergonomic approaches increased straight back posture from 59% to 75% of work time, with a 98% participant satisfaction rate. Educational strategies combining short workplace demonstrations, reminder media, and physical exercises proved more effective than conventional training methods. Theory-based weekly training sessions reduced the proportion of high-risk workers from 60% to 21% within three months. The study concludes that structured work posture education based on behavior change theories effectively enhances ergonomic awareness among home-based workers and significantly reduces health risks associated with poor posture.

Shella Dhika Rahmawati; Fitratun Najizah; Aulia Ayu Kusuma W

ARDHI : Jurnal Pengabdian Dalam Negri 2024 Asosiasi Riset Pendidikan Agama dan Filsafat Indonesia

Neck pain is a medical symptom or condition that is generally caused by pressure on the soft tissues, bones, or joints of the cervical spine and or other adjacent structures. In some cases, neck pain may also be caused by diseases of the neck or other underlying parts of the body. Risk factors for neck pain include poor posture, accidents, injuries and degenerative diseases may be the cause of neck pain in a person. Other causes such as infections in the lining (membranes) of the brain (meningitis), osteoarthritis, and fibromyalgia can be considered. Neck pain caused by muscle tension usually goes away on its own within a few days and only requires conservative treatment in the form of exercise, stretching, physical therapy, massage. Some forms of neck pain require professional medical care, including prescribing medications, physical therapy and other treatments. In severe cases, surgery may be necessary to manage neck pain. On May 19, 2022, we carried out Independent Community Service in Krobyongan Village, Gawanan, Colomadu District, Karanganyar Regency, Central Java (Sanggar Prima) with the theme of simple ways to overcome neck stiffness while working. Starting the counseling activity with neck pain material, how to overcome neck stiffness while working and exemplifying the movements, a question and answer session and ending by distributing snacks and questionnaires. The purpose of this activity is to increase knowledge on how to prevent neck pain and how to overcome neck stiffness while working at the prima colomadu studio. The method of implementing community service by: lectures, discussions, and providing simple tips and exercises.

Cindy Felicia; Fariz Zuvil Arganata; Nafilatul Fitri

Inovasi Kesehatan Global 2024 Lembaga Pengembangan Kinerja Dosen

Workers in the shoe sole making industry in Mergelo Mojokerto in carrying out the production process do work with unnatural postures that are carried out repeatedly. It was found that shoe sole workers experienced moderate and high Musculoskeletal Disorders. The purpose of this study, namely to analyze work postures and tenure with Musculoskeletal Disorders. This research method is quantitative cross sectional design with saturation sampling technique on 31 workers using spearman rank analysis of SPSS 26 application. The research instruments are Nordic Body Map (NBM), stopwatch, and Rapid Upper Limb Assessment (RULA). Based on the results of the analysis, the significance value of work posture with Musculoskeletal Disorders is 0.00 <0.05 and the significance value of repetitive motion with Musculoskeletal Disorders is 0.010 <0.05. Work posture and repetitive motion factors have a significant relationship with Musculoskeletal Disorders. This study suggests replacing work facilities that lack ergonomics and performing streching movements before performing work activities.

Fazri Zuzano; Susi Herawati; Niniwati Niniwati; Syukmanetti Syukmanetti; Rita Desfitri +4 more

ARDHI : Jurnal Pengabdian Dalam Negri 2024 Asosiasi Riset Pendidikan Agama dan Filsafat Indonesia

One effort to improve elementary school students' arithmetic (numeracy) skills is to use learning media in the form of an abacus. The abacus, also known as mental arithmetic, is a medium for developing thinking and calculating abilities in mathematics and is able to balance the abilities of the right and left brain. Therefore, SD 01 Ulak Karang teachers need to improve their skills in using the abacus, so that these skills can be mastered and provided to students well. The method of this activity includes basic level abacus training, namely (1) introducing body posture when using an abacus, (2) introducing the rules and how to operate/move the abacus beads, (3) introducing number notations represented by one or a group of abacus beads.  (4) introduce the technique of calculating addition and subtraction using an abacus and practice questions. Based on the results of this activity, the teachers at SDN 01 Ulak Karang Selatan are familiar with the technique of calculating with an abacus and can use the abacus to carry out addition and subtraction operations correctly and quickly. The teachers were very enthusiastic about being able to master all the techniques and calculation operations with the abacus.