A preliminary field study of optimal trunk flexion by subjective discomfort in recreational cyclists

Autor:	Ming-Lun Yu, Yi-Lang Chen
Rok vydání:	2012
Předmět:	medicine.medical_specialty Engineering Shoulders business.industry Trunk flexion Trunk Industrial and Manufacturing Engineering body regions Physical medicine and rehabilitation medicine.anatomical_structure medicine Buttocks Cycling business human activities Recreation Simulation
Zdroj:	Journal of the Chinese Institute of Industrial Engineers. 29:526-533
ISSN:	2151-7606 1017-0669
DOI:	10.1080/10170669.2012.729762
Popis:	This study attempts to find the optimal trunk flexion (TF) of a recreational cyclist's subjective discomfort rating while cycling. Two hundred and fifty cyclists were sagittally filmed while cycling on a cycle-way, and their subjective body discomforts were rated. The cyclists also responded to a brief questionnaire. Results show that the TF is positively related to the discomfort on neck/shoulders and is contrary to that on the buttocks. The bike owner cyclists’ (n = 144) trunks were more flexed than the bike rental cyclists’ (n = 106), with a difference of about 11°. This study also found that the cyclists may subjectively perceive the minimum discomforts of both the buttocks and neck/shoulders regions when the trunk was nearly flexed to 38°. This finding serves as a reference for ergonomic consideration in bike design to avoid extreme discomfort while cycling.
Databáze:	OpenAIRE
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