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The home industry that is developing in Sading village is the sengait jaja industry. This is due to the large number of requests and relatively cheap prices. Ergonomics analysis is needed to create safe, comfortable, healthy working conditions, so as to create effective work activities and can increase productivity. The method used in this research is descriptive with observation, interview, and documentation methods. The results of this study were analyzed descriptively with an ergonomic approach. The results of this study are the occurrence of repetitive movements, bad working posture, static working positions, extreme temperatures and work stress in workers who make jaja sengait. From the results of this analysis it can be suggested by (a) redesigning the work station; (b) adapting work facilities to anthropometry and types of work, so that work attitudes can be more ergonomic; (c) work environment and carrying out exercise actions in between breaks to reduce musculoskeletal disorders, fatigue and can reduce boredom at work so that productivity increases.

The fish processing industry in Cilacap district is a business that is quite popular, because processed fish is a superior product in Cilacap district, one of which is mackerel fish crackers. This is influenced by the fact that the Cilacap district is a coastal area and is a place for tourist visits so that people's interest in various food flavors is quite high. Ergonomic analysis is needed to create safe, comfortable and healthy working conditions so that work activities can be effective which has an effect on increasing productivity. The method used in this research is descriptive experimental through observation and interview methods. Located in the Agung Rasa mackerel fish cracker home industry. The results of the research obtained an ergonomic analysis using an approach to 8 ergonomic aspects in the form of use of muscle power, work attitude, nutrition, work environment, work time, information systems, socio-cultural conditions and human-machine interaction which is known to still not show ergonomic working conditions. From the results of this analysis, recommendations can be made in the form of implementing short breaks or implementing exercise between work activities to avoid feelings of boredom, fatigue and musculoskeletal complaints, then improvements to work stations, regular working time arrangements and layout arrangements can be implemented to create ergonomic working conditions.

Lower back or waist pain is a disorder in musculoskeletal position due to incorrect ergonomics, characterized by pain in the muscle area between the costal border and the inferior gluteal fold. Risk factors that can influence the incidence of lower back pain are age, gender, body mass index, smoking habits, lack of exercise, years of work, work position, and heavy workload. This community service is a forum to improve and provide education to the elderly about prevention and how to deal with lower back pain using a home program. This service activity was carried out using the counseling method with approximately 20 respondents participating. After being given a presentation of material regarding low back pain and a demonstration regarding recommended home exercises/home programs, most respondents understood and were able to explain the definition, risk factors, symptoms and prevention of low back pain.

 Working position when typing is closely related to ergonomics or comfort issues, especially in the areas of design, position and proper body posture. MTrPs is a condition describing acute or chronic soft tissue pain, which occurs in muscles or muscle fascia. MTrPs cause contraction of knots or nodes that can form in a muscle band junction which is a source of pain. Pain or discomfort in the form of a prickling, throbbing, cutting and burning sensation in the loose connective tissue that covers the trapezius muscle due to trigger points. Data on computer workers in the Pedurungan Wetan area is 24 workers. This research method is a pre-experimental one group pre and post test design and sampling using purposive sampling technique. The population of this research is rental workers who work in Tlogosari Wetan, Pedurungan, Semarang City. The research instrument uses VAS (Vasual Analog Skill). The research stages consist of preparation, implementation and processing of research data. The steps taken at the preparation stage are literature study, field survey, outreach to rental workers. The implementation stage is carried out by collecting data. The results of this study showed that there was a relationship between typing time and the occurrence of MTrPs in the Upper Trapezius Muscle.