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Volume 18
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Article

Contribution of Plantar Fascia and Intrinsic Foot Muscles in a Single-Leg Drop Landing and Repetitive Rebound Jumps: An Ultrasound-Based Study

by
Masanori Morikawa
1,
Noriaki Maeda
1,
Makoto Komiya
1,
Arisu Hirota
1,
Rami Mizuta
1,
Toshiki Kobayashi
2,
Kazuki Kaneda
1,
Yuichi Nishikawa
3 and
Yukio Urabe
1,*
1
Division of Sport Rehabilitation, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
2
Department of Biomedical Engineering, Faculty of Engineering, The Hong Kong Polytechnic University, 11 Yuk Choi Road, Hung Hom, Hong Kong, China
3
Faculty of Frontier Engineering, Institute of Science & Engineering, Kanazawa University, Kanazawa 076-264-5111, Japan
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2021, 18(9), 4511; https://doi.org/10.3390/ijerph18094511
Submission received: 25 March 2021 / Revised: 10 April 2021 / Accepted: 19 April 2021 / Published: 23 April 2021
(This article belongs to the Special Issue Exercise and Performance Physiology)
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Abstract

The plantar fascia and intrinsic foot muscles (IFM) modulate foot stiffness. However, it is unclear whether the corresponding ultrasonography findings reflect it. This study aimed to examine the effect of the plantar fascia and IFM morphologies on force attenuation during landing and reactivity when jumping in healthy adults (n = 21; age, 21–27 years). Thickness, cross-sectional area (CSA), and hardness of the plantar fascia, abductor hallucis (AbH), and flexor hallucis brevis (FHB) muscles were measured using ultrasonography. Single-leg drop landing and repetitive rebound jumping tests assessed the ground reaction force (GRF) and reactive jump index (RJI), respectively. The CSA of FHB was negatively correlated with maximum vertical GRF (r = −0.472, p = 0.031) in the single-leg drop landing test. The CSA of AbH was negatively correlated with contact time (r = −0.478, p = 0.028), and the plantar fascia thickness was positively correlated with jump height (r = 0.615, p = 0.003) and RJI (r = 0.645, p = 0.002) in the repetitive bound jump test. In multivariate regression analysis, only the plantar fascia thickness was associated with RJI (β = 0.152, 95% confidence interval: 7.219–38.743, p = 0.007). The CSA of FHB may contribute to force attenuation during landing. The thickness of the plantar fascia and CSA of AbH may facilitate jumping high with minimal contact time.
Keywords: muscle thickness; cross-sectional area; muscle hardness; drop landing; reactive jump index muscle thickness; cross-sectional area; muscle hardness; drop landing; reactive jump index

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MDPI and ACS Style

Morikawa, M.; Maeda, N.; Komiya, M.; Hirota, A.; Mizuta, R.; Kobayashi, T.; Kaneda, K.; Nishikawa, Y.; Urabe, Y. Contribution of Plantar Fascia and Intrinsic Foot Muscles in a Single-Leg Drop Landing and Repetitive Rebound Jumps: An Ultrasound-Based Study. Int. J. Environ. Res. Public Health 2021, 18, 4511. https://doi.org/10.3390/ijerph18094511

AMA Style

Morikawa M, Maeda N, Komiya M, Hirota A, Mizuta R, Kobayashi T, Kaneda K, Nishikawa Y, Urabe Y. Contribution of Plantar Fascia and Intrinsic Foot Muscles in a Single-Leg Drop Landing and Repetitive Rebound Jumps: An Ultrasound-Based Study. International Journal of Environmental Research and Public Health. 2021; 18(9):4511. https://doi.org/10.3390/ijerph18094511

Chicago/Turabian Style

Morikawa, Masanori, Noriaki Maeda, Makoto Komiya, Arisu Hirota, Rami Mizuta, Toshiki Kobayashi, Kazuki Kaneda, Yuichi Nishikawa, and Yukio Urabe. 2021. "Contribution of Plantar Fascia and Intrinsic Foot Muscles in a Single-Leg Drop Landing and Repetitive Rebound Jumps: An Ultrasound-Based Study" International Journal of Environmental Research and Public Health 18, no. 9: 4511. https://doi.org/10.3390/ijerph18094511

APA Style

Morikawa, M., Maeda, N., Komiya, M., Hirota, A., Mizuta, R., Kobayashi, T., Kaneda, K., Nishikawa, Y., & Urabe, Y. (2021). Contribution of Plantar Fascia and Intrinsic Foot Muscles in a Single-Leg Drop Landing and Repetitive Rebound Jumps: An Ultrasound-Based Study. International Journal of Environmental Research and Public Health, 18(9), 4511. https://doi.org/10.3390/ijerph18094511

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