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Article
Publication date: 8 June 2023

Kazuo Nagano, Shijia Lyu and Naoshi Kakitsuba

Water vapor trapped in the boundary layer between a person and the clothing creates discomfort and other unpleasant sensations. When that water vapor is prevented from leaving the…

35

Abstract

Purpose

Water vapor trapped in the boundary layer between a person and the clothing creates discomfort and other unpleasant sensations. When that water vapor is prevented from leaving the clothing by external vapor barriers or impermeable layers, those psychophysical states are further exacerbated. One situation where that can be problematic is in office workplaces, and the seats that workers use for many hours every day. This study aims to evaluate the impact of different fabrics that are used for seat cover on water vapor retention.

Design/methodology/approach

The authors' method determines the behavior of contact surface humidity with a 50 kg sandbag on the seat to mimic the deformation of the seat materials due to the seated person's weight. Thus, the maximum increase in relative humidity (RH) after humidification of the seat surface (ΔRH-max), the time required to reach the maximum value of humidity (t-max) and the time constant (TC) after humidity starts to fall were derived.

Findings

Of the three different seat covers tested, the ΔRH-max of the wool were 7.3–8.8%, compared to 27.0–29.0% of the polyvinyl chloride (PVC), indicating more moisture absorption and transmission of the wool. The TC of the acrylic cover was 224–384 min compared to the 483–558 min of the PVC, which indicated a quick drying out feature of the acrylic.

Originality/value

The ΔRH-max, t-max and TC were all significantly correlated with the RH at the back thigh skin surface of the actual human participants.

Details

International Journal of Clothing Science and Technology, vol. 35 no. 4
Type: Research Article
ISSN: 0955-6222

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Book part
Publication date: 10 November 2016

Chiaki Okada and Kazuo Uchiumi

This chapter introduces the development of sport sociology in Japan especially focusing on the activities of the Japanese Society of Sport Sociology (JSSS) and research by members…

Abstract

This chapter introduces the development of sport sociology in Japan especially focusing on the activities of the Japanese Society of Sport Sociology (JSSS) and research by members of the society. Following a brief history, we discuss some notable and influential research in Japanese sport sociology. Then we pick up the two areas of Olympic Studies and Sport for Development and Peace to show the current situation of sport sociology in Japan. In Japan, the development of sport sociology and sport itself are tightly linked with the development of the society as a whole, especially influenced by economic factors. In regards to the future of sport sociology as well as sport, we believe that this will depend on the economic situation, although sport-related persons (except for sociologists) tend to expect much of the governmental body. Because the volume of Olympic Studies and Sport for Development and Peace research is increasing, sport sociology will achieve a certain amount of success by the 2020 Tokyo Olympics/Paralympics. However, we need to seek a way to maintain the momentum of sport sociology in Japan after the year 2020.

Details

Sociology of Sport: A Global Subdiscipline in Review
Type: Book
ISBN: 978-1-78635-050-3

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