Chosen postures during specific sitting activities

Abstract

This research study analysed the interaction between people's postures and activities while in semi-public/leisure situations and during transportation (journey by train). In addition, the use of small electronic devices received particular emphasis. Video recordings in German trains and photographs in Dutch semi-public spaces were analysed using a variation of Branton and Grayson's (An evaluation of train seats by observation of sitting behaviour. Ergonomics, 10 (1), (1967), 35-51) postural targeting forms and photos. The analysis suggests a significant relationship between most activities and the position of the head, trunk and arms during transportation situations. The relationship during public situations is less straightforward. Watching, talking/discussing and reading were the most observed activities for the transportation and leisure situations combined. Surprisingly, differences in head, trunk, arm and leg postures were not significant when using small electronic devices. Important issues not considered in this study include the duration of the activities, the gender and age of observed subjects and the influence of the time of day. These are interesting issues to consider and include for future research. STATEMENT OF RELEVANCE: This study shows what activities people choose to carry out and their related postures when not forced to a specific task (e.g. driving). The results of this study can be used for designing comfortable seating in the transportation industry (car passenger, train, bus and aircraft seats) and semi-public/leisure spaces.

Investigating Car Passenger Well-Being Related to a Seat Imposing Continuous Posture Variation

“…It is generally encouraged to periodically engage in non-sedentary activities [3], since remaining seated causes discomfort over time. However, this is not possible when traveling by car since both the vehicle interior and the driving task restrain posture [4] and thus it would result into abandoning the driving task and interrupting the journey.…”

“…In order to determine the participant's posture, a rapid coding technique was used as applied by for instance Kamp et al [4] or Branton and Grayon [19]. Due to the restriction of the trunk by the seat, only the position of the head, arms and legs were observed.…”

lmplementasi Desain Fasilitas Kerja Ergonomis Untuk Menurunkan Resiko Pada Postur Kerja Duduk Statis

“…Aktivitas duduk dengan alas duduk tebal dan asimetris dalam jangka pendek, sekitar 15 menit beresiko menimbulkan ketidaknyamanan dan penyimpangan postur tulang belakang (Viggiani, Noguchi, Gruevski, De Carvalho, & Callaghan, 1999). Selama bekerja dalam tempo lama dengan posisi duduk statis, orang cenderung mencari berbagai varian postur duduk untuk mengurangi ketidaknyamanan dan resiko yang dirasakan (Kampa, Kilincsoya, & Vink, 2011).…”

Digital Human Modeling to Predict Passenger Comfort: A Case of Indonesian Angkot

“…However, the buses used in the study did not seem to be microbuses as the passengers were able to stand up. Most research on passenger sitting postures has been conducted on trains [12]- [15], with results showing that passengers tend to sit in different postures depending on the activities they are performing [14], [15]. In Indonesia, studies on angkot microbuses have been reported with different range of topics, e.g.…”

“…Meanwhile, passengers might vary in terms of their sitting postures due to their activities during travel [14]. Therefore, comprehending this issue is essential to provide an initial stepping-stone for designing an ergonomically acceptable design of microbus in general and angkot in specific.…”