Abstract:
PURPOSE:To determine the influence of menstrual irregularity, oral contraceptive use and other factors on bone mineral density (BMD) and bone size at different skeletal sites in 135 college-aged fit women. METHODS:Menstrual history, oral contraceptive use, exercise history, and nutritional factors including calcium, caffeine, and alcohol intake as well as tobacco use were determined by written survey. Height, weight and fitness levels were measured. Spine and hip BMD were measured by dual x-ray absorptiometry (DXA), calcaneus BMD by peripheral DXA, and tibial bone mineral content (BMC) and size by peripheral Quantitative Computed Tomography (pQCT). RESULTS:The mean age was 18.4 +/- 0.8 years. Weight and prior exercise were positively related to BMD at most skeletal sites and to tibial bone size. Milk intake was positively related to calcaneal BMD, tibial BMC and cortical thickness. Fracture history was an important predictor of spine, hip and heel BMD. Women who had >/= 10 menstrual cycles in the year prior to BMD measurement had higher BMD at all sites as well as a greater tibial mineral content and cortical thickness than women who had oligomenorrhea/amenorrhea (= 9 cycles in the prior year; all p < 0.05). Oral Contraceptive (OC) users had significantly lower BMD in the spine (p < 0.02) and calcaneus (p = 0.04), smaller tibial periosteal circumference and lower tibial mineral content (p < 0.02) than non-OC users. CONCLUSION:In a population of fit, college-aged women, OC use and oligomenorrhea were associated with reduced BMD and bone size. Weight, as well as prior exercise and milk intake was positively related to bone density and size at some skeletal sites. Understanding these relationships would help improve skeletal health in young women.
journal_name
Nutr Metab (Lond)journal_title
Nutrition & metabolismauthors
Ruffing JA,Nieves JW,Zion M,Tendy S,Garrett P,Lindsay R,Cosman Fdoi
10.1186/1743-7075-4-17subject
Has Abstractpub_date
2007-08-06 00:00:00pages
17issn
1743-7075pii
1743-7075-4-17journal_volume
4pub_type
杂志文章abstract:BACKGROUND:Currently, there is a lack of studies examining the effects of adenosine-5'-triphosphate (ATP) supplementation utilizing a long-term, periodized resistance-training program (RT) in resistance-trained populations. Therefore, we investigated the effects of 12 weeks of 400 mg per day of oral ATP on muscular ada...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-10-57
更新日期:2013-09-22 00:00:00
abstract:BACKGROUND:The aim of this study was to investigate whether two variants of the TCF7L2 (rs7903146 and rs12255372) modify the association between nut consumption and the risk of metabolic syndrome (MetS). Additionally, the modifying effect of weight change during follow-up on these associations was investigated. MATERI...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-021-00542-7
更新日期:2021-01-12 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-10-41
更新日期:2013-06-10 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
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更新日期:2018-11-06 00:00:00
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pub_type: 杂志文章
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更新日期:2017-07-05 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-8-71
更新日期:2011-10-15 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
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更新日期:2009-05-29 00:00:00
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journal_title:Nutrition & metabolism
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
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更新日期:2018-07-09 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-020-0433-9
更新日期:2020-02-04 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-7-33
更新日期:2010-04-22 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-8-50
更新日期:2011-07-12 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 社论
doi:10.1186/1743-7075-5-10
更新日期:2008-04-09 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-016-0103-0
更新日期:2016-06-29 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-019-0395-y
更新日期:2019-10-30 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-8-8
更新日期:2011-02-02 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-11-50
更新日期:2014-10-18 00:00:00
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journal_title:Nutrition & metabolism
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更新日期:2019-10-16 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-015-0012-7
更新日期:2015-05-20 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-9-63
更新日期:2012-06-27 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-019-0413-0
更新日期:2019-12-12 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-9-14
更新日期:2012-02-21 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-11-40
更新日期:2014-08-28 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-9-17
更新日期:2012-03-13 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-1-13
更新日期:2004-11-08 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-015-0016-3
更新日期:2015-06-06 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-018-0301-z
更新日期:2018-09-24 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-5-24
更新日期:2008-10-06 00:00:00