We examined the effects of adequate energy intake on bone strength and bone mass under exercise and low nutrient intake using a rat model of the female athlete triad (FAT). Seven-week-old female rats were divided into four groups: sedentary and ad libitum feeding group (SED), exercise and ad libitum feeding group (EX), exercise and 30% food restriction group (EX-FR), and exercise, 30% food restriction and adequate energy intake group (EX-FR + Ene). Excise groups were performed a voluntary running. The EX-FR + Ene group was fed glucose ad-libitum to adequate energy intake. The experiment lasted for 12 weeks. The energy availability, internal organ weight, bone size, bone strength, bone mass, and calcium absorption in the EX-FR group were significantly lower than those in the EX group. There were no significant differences in these parameters except bone strength in between the EX and EX-FR + Ene groups. The breaking energy in the EX-FR + Ene group was significantly lower than those in the EX group. Our results provide evidence that adequate energy intake is important for optimal bone growth in young female athletes.
| Published in | American Journal of Sports Science (Volume 7, Issue 3) |
| DOI | 10.11648/j.ajss.20190703.17 |
| Page(s) | 127-135 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2019. Published by Science Publishing Group |
Female Athlete Triad, Food Restriction, Energy Supplementation, Bone Strength, Running Exercise
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APA Style
Yuki Aikawa, Yuya Kakutani, Umon Agata, Satoshi Hattori, Hitomi Ogata, et al. (2019). Adequate Energy Intake Prevents Low Bone Mass Under Exercise and Low Intake of Nutrients in Young Female Rats. American Journal of Sports Science, 7(3), 127-135. https://doi.org/10.11648/j.ajss.20190703.17
ACS Style
Yuki Aikawa; Yuya Kakutani; Umon Agata; Satoshi Hattori; Hitomi Ogata, et al. Adequate Energy Intake Prevents Low Bone Mass Under Exercise and Low Intake of Nutrients in Young Female Rats. Am. J. Sports Sci. 2019, 7(3), 127-135. doi: 10.11648/j.ajss.20190703.17
AMA Style
Yuki Aikawa, Yuya Kakutani, Umon Agata, Satoshi Hattori, Hitomi Ogata, et al. Adequate Energy Intake Prevents Low Bone Mass Under Exercise and Low Intake of Nutrients in Young Female Rats. Am J Sports Sci. 2019;7(3):127-135. doi: 10.11648/j.ajss.20190703.17
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Download@article{10.11648/j.ajss.20190703.17,
author = {Yuki Aikawa and Yuya Kakutani and Umon Agata and Satoshi Hattori and Hitomi Ogata and Ken Kiyono and Ikuko Ezawa and Naomi Omi},
title = {Adequate Energy Intake Prevents Low Bone Mass Under Exercise and Low Intake of Nutrients in Young Female Rats},
journal = {American Journal of Sports Science},
volume = {7},
number = {3},
pages = {127-135},
doi = {10.11648/j.ajss.20190703.17},
url = {https://doi.org/10.11648/j.ajss.20190703.17},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajss.20190703.17},
abstract = {We examined the effects of adequate energy intake on bone strength and bone mass under exercise and low nutrient intake using a rat model of the female athlete triad (FAT). Seven-week-old female rats were divided into four groups: sedentary and ad libitum feeding group (SED), exercise and ad libitum feeding group (EX), exercise and 30% food restriction group (EX-FR), and exercise, 30% food restriction and adequate energy intake group (EX-FR + Ene). Excise groups were performed a voluntary running. The EX-FR + Ene group was fed glucose ad-libitum to adequate energy intake. The experiment lasted for 12 weeks. The energy availability, internal organ weight, bone size, bone strength, bone mass, and calcium absorption in the EX-FR group were significantly lower than those in the EX group. There were no significant differences in these parameters except bone strength in between the EX and EX-FR + Ene groups. The breaking energy in the EX-FR + Ene group was significantly lower than those in the EX group. Our results provide evidence that adequate energy intake is important for optimal bone growth in young female athletes.},
year = {2019}
}
TY - JOUR T1 - Adequate Energy Intake Prevents Low Bone Mass Under Exercise and Low Intake of Nutrients in Young Female Rats AU - Yuki Aikawa AU - Yuya Kakutani AU - Umon Agata AU - Satoshi Hattori AU - Hitomi Ogata AU - Ken Kiyono AU - Ikuko Ezawa AU - Naomi Omi Y1 - 2019/09/19 PY - 2019 N1 - https://doi.org/10.11648/j.ajss.20190703.17 DO - 10.11648/j.ajss.20190703.17 T2 - American Journal of Sports Science JF - American Journal of Sports Science JO - American Journal of Sports Science SP - 127 EP - 135 PB - Science Publishing Group SN - 2330-8540 UR - https://doi.org/10.11648/j.ajss.20190703.17 AB - We examined the effects of adequate energy intake on bone strength and bone mass under exercise and low nutrient intake using a rat model of the female athlete triad (FAT). Seven-week-old female rats were divided into four groups: sedentary and ad libitum feeding group (SED), exercise and ad libitum feeding group (EX), exercise and 30% food restriction group (EX-FR), and exercise, 30% food restriction and adequate energy intake group (EX-FR + Ene). Excise groups were performed a voluntary running. The EX-FR + Ene group was fed glucose ad-libitum to adequate energy intake. The experiment lasted for 12 weeks. The energy availability, internal organ weight, bone size, bone strength, bone mass, and calcium absorption in the EX-FR group were significantly lower than those in the EX group. There were no significant differences in these parameters except bone strength in between the EX and EX-FR + Ene groups. The breaking energy in the EX-FR + Ene group was significantly lower than those in the EX group. Our results provide evidence that adequate energy intake is important for optimal bone growth in young female athletes. VL - 7 IS - 3 ER -
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