RESUMO
This research on human body dimensions offers data for creating comfortable and efficient workplaces. Focusing on Slovak university students (2003-2023) as a representation of the adult population, the study measured 25 key anthropometric dimensions. 11355 respondents (5219 women and 6136 men) were selected for the analysis. This data, analyzed through descriptive statistics, empowers designers to tailor work environments and their elements to individual needs, minimizing worker fatigue and maximizing productivity. The findings are applicable across various design fields: Informing dimensions and functionalities of tools, workspaces, and controls in industrial design and guiding short- and long-term product development in consumer product design. By analyzing future workforce trends through university students, this research helps ensure workplace designs remain relevant and ergonomically sound.
RESUMO
General principles derived from anatomical studies of human body sizes should be applied to chair designs. Chairs can be designed for a specific user or a particular group of users. Universal chairs for public spaces should be comfortable for the largest possible group of users and should not be adjustable, such as office chairs. However, the fundamental problem is that the anthropometric data available in the literature either come from many years ago and are out of date or do not provide a complete set of all the dimensional parameters of a sitting human body position. This article proposes a way to design chair dimensions solely based on the height range of the intended chair users. For this purpose, based on literature data, the main structural dimensions of the chair were assigned to the appropriate anthropometric body measurements. Furthermore, calculated average body proportions for the adult population overcome the incompleteness, outdated and burdensome access to anthropometric data and link the main chair design dimensions to one easily accessible anthropometric parameter: human height. This is achieved by seven equations describing the dimensional relations between the chair's essential design dimensions and human height or even a height range. The result of the study is a method of determining the optimal functional dimensions of a chair for a chosen range of sizes of its future users based only on users' height range. Limitations of the presented method: the calculated body proportions are correct only for people with a standard body proportion characteristic of adults, i.e., they exclude children and adolescents up to 20 years of age, seniors, and people with a body mass index exceeding 30.
RESUMO
BACKGROUND: Population data are gathered using the sampling unit at the appropriate time and due to various reasons (e.g. nutrition survey of the population, style of living, etc.), they can be changed due to trends for longer periods of time. OBJECTIVE: The aim of the paper is to analyse selected anthropometric parameters relevant to the design of the earth-moving machine operator workplace environment and to compare the gathered data to the standard ISO 3411. METHODS: The set of five dimensions and factors of the Slovak adult male population was analysed over the course of the years 2002-2018. RESULTS: A significant increase in the parameter -body weight was observed. In total, mentioned dimension of male population increased by 0.4âkg (0.5%) during the time of analysis. Following the dot plot and linear regression equation the fact that the trend in growth is becoming a global phenomenon in Slovakia can be stated. CONCLUSIONS: In the future, it will be necessary to focus on updating the standards defining the workplace size in this industry sector as well as in others.