Physical Functioning and Menopause States

Sowers, MaryFran; Tomey, Kristin; Jannausch, Mary; Eyvazzadeh, Aimee D.; Nan, Bin; Randolph, John F.

doi:10.1097/01.aog.0000290693.78106.9a

Cited by 50 publications

(66 citation statements)

References 32 publications

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“…still a number of publications that have used a variety of types and brands of OC's 33,63 and HRT's 39,41 , which can lead to extremely large variation in hormone concentration when grouped together and may ultimately lead to type II errors 27 . e term "muscle strength" is too ambiguous and makes comparing studies and drawing any conclusions very di cult.…”

Section: Discussionmentioning

confidence: 99%

“…One report examined the effects of OC consumption and withdrawal on strength 34 and one combined previous OC use with a control group that had never used OC's 35 . Undoubtedly, the most common reproductive functioning models used in the literature in the last decade were the menopause and HRT [36][37][38][39][40][41][42][43][44] . ese models were used to investigate numerous facets of muscle strength including; muscle sti ness 30 and soreness 29 , dynamic and isometric force production 38,43 , power 41 , endurance 32 , performance 33 , functional capacity 39 and gene expression 37 .…”

mentioning

confidence: 99%

“…Undoubtedly, the most common reproductive functioning models used in the literature in the last decade were the menopause and HRT [36][37][38][39][40][41][42][43][44] . ese models were used to investigate numerous facets of muscle strength including; muscle sti ness 30 and soreness 29 , dynamic and isometric force production 38,43 , power 41 , endurance 32 , performance 33 , functional capacity 39 and gene expression 37 . Generally, the relationship between oestrogen and muscle strength was positive; high concentrations of oestradiol were associated with the preservation of muscle strength and mass in addition to mobility and function [36][37][38][39][40][41][42][43][44] .…”

mentioning

confidence: 99%

“…ese models were used to investigate numerous facets of muscle strength including; muscle sti ness 30 and soreness 29 , dynamic and isometric force production 38,43 , power 41 , endurance 32 , performance 33 , functional capacity 39 and gene expression 37 . Generally, the relationship between oestrogen and muscle strength was positive; high concentrations of oestradiol were associated with the preservation of muscle strength and mass in addition to mobility and function [36][37][38][39][40][41][42][43][44] . However, one study showed a negative relationship between oestrogen concentrations and muscle function; A et al 35 showed increased performance in a number of functional tests in previous OC users.…”

mentioning

confidence: 99%

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The relationship between oestrogen and muscle strength: a current perspective

Elliott‐Sale

2014

Rev. bras. educ. fís. esporte

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The relationship between muscle strength and oestrogen is ambiguous and is still largely unresolved. The evidence for and against an effect of oestradiol on determinants of muscle function is equivocal and often contradictory. The bulk of the research in this area was performed during the eighties and nineties, using models of reproductive functioning such as; the menstrual cycle, the menopause and hormone replacement therapy, oral contraceptives and in vitro fertilisation treatment, to alter the female hormonal milieu. In the last decade, approximately 15 papers have demonstrated a relationship, both positive and negative, between the concentration of oestrogen and skeletal muscle strength. Conversely, around 20 articles have not shown any infl uence of oestrogen on a number of strength measures. The majority of these studies were performed using post-menopausal and eumenorrheic females. Most current studies use hormonal assays to confi rm oestrogen status, however no recent studies have reported the bioavailable concentration of oestradiol. Similarly, no research in the last 10 years has used in vitro fertilisation treatment or pregnancy as acute and chronic models of supra-physiological changes in sex hormone concentration. Future work should focus on performing meta-analyses on each of the key components of muscle strength in an attempt to elucidate a causal relationship. In addition, models of reproductive functioning that cause the greatest magnitude of change to oestrogen concentration should be used, while controlling as many confounding factors as possible.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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The relationship between oestrogen and muscle strength: a current perspective

Elliott‐Sale

2014

Rev. bras. educ. fís. esporte

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“…Выявлено, что очень низ-кие уровни обоих гормонов -достоверные маркеры, свидетельствующие о периоде наступления последней менструации. Причем АМГ является наиболее досто-верным показателем [42].…”

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Trends in the formation of the ovarian follicular reserve

Denisenko¹,

Курцер²,

Федоровна³

2016

Androl. genit. hir.

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Radiation oncology department policy development for patients who may become pregnant

Fagerstrom

2024

J Applied Clin Med Phys

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In the context of radiation oncology, radiation exposure from radiation therapy simulation, image guidance, and radiation therapy procedures can have severe adverse biological effects on a developing embryo or fetus. Patients who may be pregnant are screened for the possibility of pregnancy to prevent unnecessary or excessive exposure of radiation in utero. Some radiation therapy patients for whom a pregnancy test is indicated may elect to decline the test. In addition, some patients who are found upon screening to be pregnant may decide, with their attending radiation oncologist, to continue with treatment. A radiation oncology department policy was developed to provide guidelines regarding screening and consent. The policy was designed to prevent unnecessary exposure to patients who may be pregnant, and to limit dose to the embryo or fetus in patients for whom treatment is medically indicated. The policy is presented as an example for physicists intending to develop or revise their own practice's policy regarding patients who may become pregnant.

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Physical Functioning and Menopause States

Abstract: II.

Cited by 50 publications

References 32 publications

The relationship between oestrogen and muscle strength: a current perspective

The relationship between oestrogen and muscle strength: a current perspective

Trends in the formation of the ovarian follicular reserve

Radiation oncology department policy development for patients who may become pregnant

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