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01-05-2018 | Original Article

Non-linear growth trends of toe flexor muscle strength among children, adolescents, and young adults: a cross-sectional study

Authors: Noriteru Morita, Junichiro Yamauchi, Ryosuke Fukuoka, Toshiyuki Kurihara, Mitsuo Otsuka, Tomoyasu Okuda, Noriyuki Shide, Isao Kambayashi, Hisashi Shinkaiya

Published in: European Journal of Applied Physiology | Issue 5/2018

Abstract

Purpose

There are only a few studies on the muscular strength of the foot in children and adolescents; thus, the developmental pattern and normative data of these populations during growth are unclear. We sought to elucidate the developmental pattern of the foot muscle strength among children, adolescents, and young adults compared with that of the hand.

Methods

A total of 747 children, adolescents, and young adults participated in this study, and their maximum isometric toe flexor strength (TFS), hand grip strength (HGS), and foot length were measured.

Results

TFS was correlated with HGS (r = 0.785), age (r = 0.659), height (r = 0.757), body mass (r = 0.737), and foot length (r = 0.594). Multiple regression analyses revealed that TFS was correlated with age (β = 0.243 in boys; β = 0.461 in girls), squared value of age (age²; β = − 0.296 in boys; β = − 0.260 in girls), and body mass (β = 0.256 in boys; β = 0.311 in girls) in both sexes, indicating a non-linear relationship between age and TFS development. In a regression model for HGS, age was a significant variable, but not age². HGS increased linearly from childhood until young adulthood, whereas TFS increased from childhood until adolescence and then levelled off.

Conclusion

Our results demonstrate that TFS has a different developmental pattern compared with HGS.

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Title: Non-linear growth trends of toe flexor muscle strength among children, adolescents, and young adults: a cross-sectional study
Authors: Noriteru Morita
Junichiro Yamauchi
Ryosuke Fukuoka
Toshiyuki Kurihara
Mitsuo Otsuka
Tomoyasu Okuda
Noriyuki Shide
Isao Kambayashi
Hisashi Shinkaiya
Publication date: 01-05-2018
Publisher: Springer Berlin Heidelberg
Published in: European Journal of Applied Physiology / Issue 5/2018
Print ISSN: 1439-6319
Electronic ISSN: 1439-6327
DOI: https://doi.org/10.1007/s00421-018-3827-x

At a glance: The STEP trials

Springer Medicine

Non-linear growth trends of toe flexor muscle strength among children, adolescents, and young adults: a cross-sectional study

Abstract

Purpose

Methods

Results

Conclusion

At a glance: The STEP trials

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusion

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