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Whole-body patterns of the range of joint motion in young adults: masculine type and feminine type

Moromizato, K and Kimura, R and Fukase, H and Yamaguchi, K and Ishida, H (2016) Whole-body patterns of the range of joint motion in young adults: masculine type and feminine type. Journal of Physical Anthropology, 35 (23). ISSN 1880-6805

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Abstract

Background: Understanding the whole-body patterns of joint flexibility and their related biological and physical factors contributes not only to clinical assessments but also to the fields of human factors and ergonomics. In this study, ranges of motion (ROMs) at limb and trunk joints of young adults were analysed to understand covariation patterns of different joint motions and to identify factors associated with the variation in ROM.
Methods: Seventy-eight healthy volunteers (42 males and 36 females) living on Okinawa Island, Japan, were recruited. Passive ROM was measured at multiple joints through the whole body (31 measurements) including the left and right side limbs and trunk.
Results: Comparisons between males and females, dominant and non-dominant sides, and antagonistic motions indicated that body structures influence ROMs. In principal component analysis (PCA) on the ROM data, the first principal component (PC1) represented the sex difference and a similar covariation pattern appeared in the analysis within each sex. Multiple regression analysis showed that this component was associated with sex, age, body fat %, iliospinale height, and leg extension strength.
Conclusions: The present study identified that there is a spectrum of “masculine” and “feminine” types in the whole-body patterns of joint flexibility. This study also suggested that body proportion and composition, muscle mass and strength, and possibly skeletal structures partly explain such patterns. These results would be important to understand individual variation in susceptibility to joint injuries and diseases and in one’s suitable and effective postures and motions.

Item Type: Article
Uncontrolled Keywords: 0606 Physiology, 1116 Medical Physiology
Subjects: Q Science > QM Human anatomy
Q Science > QP Physiology
Divisions: Natural Sciences and Psychology
Publisher: BioMed Central
Related URLs:
Date Deposited: 16 Oct 2017 10:20
Last Modified: 16 Oct 2017 10:20
DOI or Identification number: 10.1186/s40101-016-0112-8
URI: http://researchonline.ljmu.ac.uk/id/eprint/7357

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