Office Chair Analysis Literature
Literature on office chair analysis reveals various aspects such as ergonomic design, evaluation systems, and health impacts, providing a scientific basis for optimizing office chair design.
Ergonomic Design as a Core Research Direction
Traditional wooden office chairs often exacerbate discomfort from prolonged sitting due to their fixed dimensions and limited adjustability. For example, the flat seat surface of wooden chairs affects blood circulation, while the fixed backrest angle increases lumbar pressure. To address these issues, the literature proposes reconstructing the segmented structure of the chair back to achieve dynamic support for the shoulders, waist, and hips based on the Akblom curve. This is combined with intelligent lifting technology (travel range of 65-120 cm) and a dynamic height difference adaptation model (height difference between the chair surface and the desktop of 28-32 cm) to enhance desk-chair compatibility. Additionally, personalized customization, intelligent sensing, and sustainable design are considered important future directions.
Scientific Evaluation System Facilitates Design Optimization
To address the subjectivity and one-sidedness in the evaluation of office chair design, the literature constructs an evaluation system based on the TOPSIS-PSI method. This system determines evaluation indicators through literature review, user and expert discussions, and assigns values using an expert nine-level scale scoring method. It combines TOPSIS and PSI methods for combined weighting to reduce the proportion of subjective evaluations. In practical applications, this method evaluated three office chair design proposals, identifying Seat 1 as the optimal solution. The correctness and effectiveness of the indicator design theory and evaluation method were verified through the VIKOR and COPRAS methods.
Health Impacts and Market Demand Drive Design Improvements
Research indicates that people spend more than 55% of their waking hours sitting, making prolonged sitting an unhealthy behavior with a prevalence rate exceeding 50%. Poor sitting posture or inappropriate chair design can lead to premature fatigue and cumulative injuries, while ergonomic chair design is crucial for physical health and work efficiency. Market research also shows that the fast-paced work environment makes workers prioritize office efficiency, with chair comfort becoming a key requirement. However, research on the ergonomic comfort of office chairs remains incomplete both domestically and internationally, necessitating further in-depth study.
