Assessment of the Effect of Four Kneeling Chair Angle Combinations on Muscle Activity and Perceived Discomfort.

Xiaoxiao Lei, Jutao Li, Jingchen Cong, Mengyang Ren, Zhongxia Xiang

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In one paragraph

Article in Sensors (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed

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1 · What the graph read from it

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Xiaoxiao LeiSchool of Mechanical Engineering, Tianjin University, Tianjin 300354, China.

Jutao LiKey Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, Tianjin University, Tianjin 300354, China.

Jingchen CongSchool of Architecture & Art Design, Hebei University of Technology, Tianjin 300131, China.

Mengyang RenDepartment of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China.ORCID 0000-0002-5087-7092

Zhongxia XiangSchool of Mechanical Engineering, Tianjin University, Tianjin 300354, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The kneeling chair has an advantage over the traditional chair in that it promotes lumbar lordosis, while findings regarding muscle activity and subjective (dis)comfort evaluation between the two are inconsistent. Furthermore, there is a lack of studies focusing on the angle combinations of the kneeling chair. This study investigated an unsupported traditional sitting configuration and four unsupported kneeling configurations with different angle combinations through measurements of surface electromyography (EMG) signals, body part discomfort (BPD) scores, and seat configuration evaluation scores. A significant decrease in lumbar erector spinae (LES) muscle activity and perceived discomfort was observed in the kneeling configuration compared with the results for the traditional sitting configuration. Among the four angle combinations, the optimal arrangement was identified, which resulted in significantly less LES muscle activity and perceived discomfort. Our findings provide guidance for the design and future studies of the kneeling chair.

Indexed as

Interior Design and FurnishingsMuscle, SkeletalAdultElectromyographyEquipment DesignFemaleHumansMalePostureSitting PositionYoung Adultangle combinationdiscomfortkneeling chairsurface electromyography

Identifiers

PMID41682484

DOI10.3390/s26030970

PMCPMC12899650

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.