Predicting passenger seat comfort and discomfort on the basis of human, context and seat characteristics: a literature review.

This literature review focused on passenger seat comfort and discomfort in a human-product-context interaction. The relationships between anthropometric variables (human level), activities (context level), seat characteristics (product level) and the perception of comfort and discomfort were studied through mediating variables, such as body posture, movement and interface pressure. It is concluded that there are correlations between anthropometric variables and interface pressure variables, and that this relationship is affected by body posture.

Activities, postures and comfort perception of train passengers as input for train seat design.

Working in the train is a part of new ways of working. However, the ideal working position is unknown. Moreover, the ideal position for leisure and relaxing is also unknown.

Effect of canopy shape on physical load when holding an umbrella.

The aim of the current study was to investigate the effect of the canopy shape of an umbrella on physical load when holding the umbrella in different circumstances. For this purpose, thirteen subjects participated in this study and muscle activity of seven muscles of the upper limb (including the forearm) was measured for 5 wind speeds (4, 5, 6, 7, 8 Bft) and two wind directions (front and side). From the results, it was seen that for the p50 value of the muscle activity, the umbrella with the asymmetric canopy required 62% and for the p90 value of the muscle activity 74% of the muscle activity, on average, over all wind speeds - compared to the traditional umbrella.

Sitting comfort and discomfort and the relationships with objective measures.

The concepts of comfort and discomfort in sitting are under debate. There is no widely accepted definition, although it is beyond dispute that comfort and discomfort are feelings or emotions that are subjective in nature. Yet, beside several subjective methodologies, several objective methods (e.