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Preliminary statistical analysis of anthropometrics data in related to sitting posture among college students at east coast Malaysia

Ibrahim M.H., Ishak N.F., Mukhtar N.Z., Basir M.H., Said N.A., Mohamed K.A., Awang M.E.

Archives of Materials Science and Engineering

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2022

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Vol. 116, nr 2

81--85

EN

Purpose: To statistically analyse sitting posture using anthropometrics data among college students in Malaysia. Design/methodology/approach: This study was conducted among 52 college students consisting of males and females. Data were analysed using a common statistical tool which is the Statistical Package of Sosial Science (SPSS). Findings: Preliminary analysis of data indicated that there are wider differences in standard deviation of eye sitting height compared to the previous study conducted. Research limitations/implications: This study was conducted at only one higher learning institution/college located at East Cost of Malaysia. Practical implications: The larger value of standard deviation discovered as statistical analysis performed using combined data among male and female participants suggested that data should be segregated. Originality/value: Result obtained could be used as a preliminary guideline to design any related item in related to sitting posture.

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Accuracy and Repeatability of Limb Scans Obtained on the Semi-Automatic Measuring Station

Wichniarek Radosław, Górski Filip, Kuczko Wiesław, Żukowska Magdalena

Advances in Science and Technology. Research Journal

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2020

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Vol. 14, no 4

220--228

EN

Designing individualized medical devices requires the collection of anthropometric data from the patient. This can be done by using the 3D scanning process. Despite many advantages, it has significant drawbacks, limiting the suitability of its use for many types of medical devices. This paper presents the design of measuring station that allows increasing the quality of the anthropometric data obtained in the scanning process of human limbs. The accuracy and repeatability of the data obtained on the station was presented and compared to reference scans. Moreover, owing to the automation of certain activities in the scanning process, operating the device requires the operator to have much lower competencies and workload.

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Study of postural adjustments for humanoidal helpmates

Villalobos J., Zielińska T.

Journal of Automation Mobile Robotics and Intelligent Systems

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2017

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Vol. 11, No. 4

15--25

EN

Humanoid robots and humans look alike, and therefore are expected to adjust their posture in a similar way. We analysed a set of human static postures that should be considered for humanoids acting as caretakers. A dynamic situation was studied to learn how humanoids can react in a dynamical way. Human data were obtained with a professional motion capture system and anthropometric tables. The static postures were studied using a segmented human body model, but for motion analysis the single and double pendulums with moving masses were also employed. For robot motion synthesis we need to know the relation between the posture and the postural stability. We have shown that the positions of mass centres of the pendulum segments (which match the human body point masses) are crucial for postural stabilization. The Zero-Moment Point criterion was applied for the dynamic case. The static analysis demonstrates that there are some common features of the postures. The dynamic analysis indicated that both pendulums are good models of human body motion, and are useful for humanoid motion synthesis. In humanoids, it is easier to apply results represented by inverted pendulums than postural models represented by stick diagrams. This is because humanoids and humans do not obviously share the same mass distribution and sizes (proportions) of all body segments. Moreover our descriptions indicate where to locate the supporting leg/legs in single and double support, which in general, is missing in inverted pendulum models discussed in the literature. The paper’s aim is to deepen the knowledge about the adjustment of human postures for the purpose of robotics.

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A Carpet-Weaver’s Chair Based on Anthropometric Data

Mahmoudi N., Bazrafshan M.

International Journal of Occupational Safety and Ergonomics

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2013

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Vol. 19, No. 4

543--550

EN

Ergonomic design of chairs has been well studied by ergonomists. Chair design based on anthropometric data analysis is recommended. Weavers in carpet-weaving workshops use chairs with backrests and armrests. An anthropometric survey was carried out among weavers in Tabriz, Iran, to design a flexible chair and to improve its comfort on the basis of design dimensions. This study focused on the design dimensions of a chair for weavers and its recommended dimensions. The developed chair needs to be tested for its effects on weavers’ posture and comfort.