Abstract

Household sewing businesses as a small industry still use simple tools, especially work chairs. The work chair used does not suit the worker's posture. This has the impact of making workers less comfortable in carrying out sewing business. Apart from that, it causes musculoskeletal complaints in workers such as back pain. Work chair models that do not suit the worker's posture are often referred to as non-ergonomic work tools. This can be overcome with participatory ergonomic applications, namely the role of workers as users. The method uses anthropometric data, namely measuring the dimensions of the worker's body according to the tools used. Anthropometric data from workers is then calculated using percentiles, and the results are applied to the dimensions of work equipment, in this study, in the form of work chairs. By using Percentiles 5 (P5), 50 (P50), and 95 (P95), the dimensions of the new work chair are obtained. Minimum chair height 36.76 cm and maximum height 40.34, cushion or seat length 43.2 cm, backrest width 45.26 cm, cushion or seat width 45.17 cm, backrest height 51.40 cm, backrest height arm 15.89 cm, armrest width 9.88 cm, and armrest length 27.60 cm. The design of work chairs is based on anthropometric data according to workers' needs and has an impact on comfort when used at work.