Physical activities in daily life often result in the development of musculoskeletal discomfort, which hinders performance and reduces quality of life. The study aimed to develop a to develop a prototype chair based on ergonomic principles and pressure points to reduce physical discomfort among athletes following sporting activities. A descriptive and comparative study used a user-centred design approach. The study had a first stage of development of the prototype of the chair, developing an idea, sketching, typologies, and low-fidelity prototypes until finally reaching a prototype for testing made in wood. User-centred interviews were used. In the second part, nine people were surveyed to indicate their level of discomfort through the Borg scale after using the chair and give their opinion through an interview. A wooden chair was proposed based on the ergonomic concept of comfort angles and body pressure points in the back and seats. The results showed a significant reduction of discomfort (p < 0.05) with favourable opinions and conclusions for improving the design. A prototype of a wooden chair with support based on the chameleon concept was developed using a user-centred approach. The chair demonstrated a reduction in physical discomfort for the participants. The prototype also proposed usage times and design improvements.