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Volume 14
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10.3390/nu14245225
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Article

Bone Strength of the Calcaneus Is Associated with Dietary Calcium Intake in Older Japanese Men, but Not Women

by
Keita Suzuki
1,*,
Hiromasa Tsujiguchi
1,2,3,
Akinori Hara
1,2,3,
Sakae Miyagi
3,4,
Thao Thi Thu Nguyen
5,
Yasuhiro Kambayashi
6,
Yukari Shimizu
7,
Fumihiko Suzuki
1,8,
Chie Takazawa
1,
Masaharu Nakamura
1,
Hirohito Tsuboi
9,
Takayuki Kannon
10,
Atsushi Tajima
11 and
Hiroyuki Nakamura
1,2,3
1
Department of Hygiene and Public Health, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa 920-8640, Ishikawa, Japan
2
Department of Public Health, Graduate School of Advanced Preventive Medical Sciences, Kanazawa University, Kanazawa 920-8640, Ishikawa, Japan
3
Kanazawa University Advanced Preventive Medical Sciences Research Center, Kanazawa 920-8640, Ishikawa, Japan
4
Innovative Clinical Research Center, Kanazawa University, Kanazawa 920-8640, Ishikawa, Japan
5
Department of Epidemiology, Faculty of Public Health, Haiphong University of Medicine and Pharmacy, Hai Phong 04000-05000, Vietnam
6
Department of Public Health, Faculty of Veterinary Medicine, Okayama University of Science, Imabari 794-0085, Ehime, Japan
7
Department of Nursing, Faculty of Health Sciences, Komatsu University, Komatsu 923-8511, Ishikawa, Japan
8
Community Medicine Support Dentistry, Ohu University Hospital, Koriyama 963-8611, Fukushima, Japan
9
Graduate School of Human Nursing, The University of Shiga Prefecture, Hikone 522-8533, Shiga, Japan
10
Department of Biomedical Data Science, School of Medicine, Fujita Health University, Toyoake 470-1101, Aichi, Japan
11
Department of Bioinformatics and Genomics, Graduate School of Advanced Preventive Medical Sciences, Kanazawa University, Kanazawa 920-8640, Ishikawa, Japan
 
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*
Author to whom correspondence should be addressed.
Nutrients 2022, 14(24), 5225; https://doi.org/10.3390/nu14245225
Submission received: 30 October 2022 / Revised: 25 November 2022 / Accepted: 6 December 2022 / Published: 8 December 2022
(This article belongs to the Special Issue Dietary Factors in Bone Health)
Versions Notes

Abstract

The relationship between calcium intake and bone strength in older Asian individuals, including Japanese, is controversial; therefore, we herein investigated this relationship in older Japanese populations. We performed a cross-sectional analysis of 314 participants older than 65 years who voluntarily participated in a medical examination and responded to questionnaires. The osteo-sono assessment index (OSI) measured at the right calcaneus using a quantitative ultrasonic device was used as an indicator of bone strength. The daily dietary intake of calcium was assessed using a brief-type self-administered diet history questionnaire. A two-way analysis of covariance revealed a significant interaction between sex and calcium intake on the OSI (p < 0.01). A multiple regression analysis showed a positive correlation between calcium intake and the OSI in males (p < 0.01), but not females (p = 0.27). In females, grip strength divided by body weight positively correlated with the OSI (p = 0.04). The present results suggest that a higher calcium intake contributes to bone strength in older Japanese males. Although a higher grip strength may contribute to bone strength in females, the potential of estrogen as a confounding factor needs to be considered.
Keywords: calcium intake; bone strength; grip strength; older people; cross-sectional study calcium intake; bone strength; grip strength; older people; cross-sectional study

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MDPI and ACS Style

Suzuki, K.; Tsujiguchi, H.; Hara, A.; Miyagi, S.; Nguyen, T.T.T.; Kambayashi, Y.; Shimizu, Y.; Suzuki, F.; Takazawa, C.; Nakamura, M.; et al. Bone Strength of the Calcaneus Is Associated with Dietary Calcium Intake in Older Japanese Men, but Not Women. Nutrients 2022, 14, 5225. https://doi.org/10.3390/nu14245225

AMA Style

Suzuki K, Tsujiguchi H, Hara A, Miyagi S, Nguyen TTT, Kambayashi Y, Shimizu Y, Suzuki F, Takazawa C, Nakamura M, et al. Bone Strength of the Calcaneus Is Associated with Dietary Calcium Intake in Older Japanese Men, but Not Women. Nutrients. 2022; 14(24):5225. https://doi.org/10.3390/nu14245225

Chicago/Turabian Style

Suzuki, Keita, Hiromasa Tsujiguchi, Akinori Hara, Sakae Miyagi, Thao Thi Thu Nguyen, Yasuhiro Kambayashi, Yukari Shimizu, Fumihiko Suzuki, Chie Takazawa, Masaharu Nakamura, and et al. 2022. "Bone Strength of the Calcaneus Is Associated with Dietary Calcium Intake in Older Japanese Men, but Not Women" Nutrients 14, no. 24: 5225. https://doi.org/10.3390/nu14245225

APA Style

Suzuki, K., Tsujiguchi, H., Hara, A., Miyagi, S., Nguyen, T. T. T., Kambayashi, Y., Shimizu, Y., Suzuki, F., Takazawa, C., Nakamura, M., Tsuboi, H., Kannon, T., Tajima, A., & Nakamura, H. (2022). Bone Strength of the Calcaneus Is Associated with Dietary Calcium Intake in Older Japanese Men, but Not Women. Nutrients, 14(24), 5225. https://doi.org/10.3390/nu14245225

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