Grip strength and endurance throughout the menstrual cycle in eumenorrheic and women using oral contraceptives

Nicolay, Christopher W.; Kenney, Jessica L.; Lucki, Natasha C.

doi:10.1016/j.ergon.2008.01.002

Cited by 10 publications

(10 citation statements)

References 36 publications

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“…10 The influence of HCs on physiological response to exercise remains unclear, but their use has shown benefits for exercisers in reducing dysmenorrhea and premenstrual syndrome (PMS) and increasing cycle regularity and control and is postulated to protect bone density. 10 In one study, Nicolay et al 32 found significantly lower grip strength endurance during the luteal phase among women who were not using HCs but no difference among women who were using HCs. HCs also appear to minimize cyclical changes in psychological variables across the menstrual cycle, with women using HCs reporting less variability in mood and affect throughout the cycle, 33 although contrary results have also been reported.…”

Section: Introductionmentioning

confidence: 99%

Menstrual Cycle Effects on Perceived Exertion and Pain During Exercise Among Sedentary Women

Hooper

Bryan²,

Eaton³

2011

Journal of Women's Health

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Background: Increasing cardiovascular fitness through exercise participation among sedentary people is important for decreasing all-cause mortality. From an intervention perspective, identifying modifiable factors that maximize the successful initiation of exercise is of utmost importance. For women, cyclic hormonal variations can influence aspects of health and health behaviors, from smoking cessation efficacy to physiological responses to exercise. The purpose of this study was to examine the influence of menstrual cycle phase and hormonal contraceptive (HC) use on subjective response to an initial bout of moderate intensity exercise among previously sedentary women (n ¼ 117). Methods: Women completed a treadmill exercise challenge session at 65% of their previously determined maximum oxygen consumption (Vo 2 max) during the early follicular, late follicular, or luteal phase. Participants reported ratings of perceived exertion and pain using Borg's Rating of Perceived Exertion (RPE) and CR10 scales at 10, 20, and 30 minutes during the exercise session.Results: There was a significant menstrual phaseÂbirth control interaction on change in RPE [F(2, 111) ¼ 3.75, p < 0.05] and change in perceived pain [F(2, 110) ¼ 3.31, p < 0.05]. Women in the early follicular phase who were not using HCs had significantly greater increases in RPE and increases in pain compared with women in the late follicular and luteal phases. Conclusions: Our results indicate that the use of HC and cycle phase influence sedentary women's subjective response to exercise. These results have important implications for the timing of exercise interventions aimed at increasing exercise among sedentary women.

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Section: Introductionmentioning

confidence: 99%

Menstrual Cycle Effects on Perceived Exertion and Pain During Exercise Among Sedentary Women

Hooper

Bryan²,

Eaton³

2011

Journal of Women's Health

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“…al. [10] showed that estrogen supplementation facilitated peripheral muscle strength. Moreover postmenopausal women who received hormone replacement therapy had lower incidence of POP [11].…”

Section: Discussionmentioning

confidence: 99%

Assesment of Hand grip Strength in Patients with Pelvic Organ Prolapse

Güzelant¹

2015

Ann Clin Anal Med

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ÖzetAmaç: Pelvik organ prolapsusu(POP) doğum yapmış kadınların %50'sinde gözlenen, sık bir patolojidir. Pelvik organ prolapsusunun önde gelen sebebi pelvic taban kaslarının zayıflığıdır. El kavrama gücü, total kas gücü ile ilişkili-dir ve kişinin genel kas gücünü değerlendirmek için kullanılabilir. El kavrama gücünün ölçümü Jamar dinamometre adında taşınabilir bir dinamometre ile yapılır. POP olan hastalarda genel kas gücünün azalmış olabileceği hipotezini kurduk. Gereç ve Yöntem: Namık Kemal Üniversitesi Tıp Fakültesi Jinekoloji kliniğine başvuran hastalardan, POP tanısı alan 20 hasta ve kontrol grubuna alınan 21 hasta çalışmaya alındı. POP-Q klasifikasyonu prolapsusun şiddetini değerlendirmek için kullanıldı. Jamar hidrolik el dinamometresi ile el kavrama gücü ölçüldü. Bulgular: Prolapsus grubunda medyan POP skoru 3 (1-4) idi. İki grupta ortalama Jamar Skorları sağ el için, sol el için ve dominant el için benzerdi (p=0.774, p=0.575 and p=0.707). Prolapsus grubunda ortalama vücut yağ oranı %33.9 ± 5.7 iken kontrol grubunda %38.9 ± 7.4 idi(p=0.021). Tartış-ma: Çalışmamızda POP grubu ile sağlıklı kontroller arasında genel vücut kas gücü açısından fark bulmadık. Sonuçlarımız vücudun genel kas gücünü göste-ren Jamar Skorlarının pelvik organ kas gücü ile ilişkili olmadığını göstermiştir. Anahtar KelimelerPelvik Organ Prolapsusu; El Kavrama Gücü; Kas Gücü Abstract Aim: Pelvic organ prolapse(POP) is a common condition that is observed in 50% of parous women. Weakness of pelvic floor muscles is an important factor that leads to POP. The hand grip strength is related to total muscle strength and it could be used to evaluate one's general muscle strength. The Jamar hand dynamometer is a portable dynamometer that uses a strain gauge to measure hand grip strength. We hypothesized that general muscle strength would be impaired in patients with POP. Material and Method: Twenty patients with pelvic organ prolapse and twenty-one controls were recruited from the gynecology clinic of Namik Kemal University School of Medicine. The POP-Q classification was used to quantify the clinical severity of the prolapse. Hand grip strength was measured using a JAMAR hydraulic hand dynamometer. Results: The median pelvic organ prolapse score was 3 (1-4) in prolapse group. The mean Jamar scores of both groups were similar for the right hand, the left hand and the dominant hand (p=0.774, p=0.575 and p=0.707, respectively).The mean body fat percentage was 33.9 ± 5.7 % in prolapses group and it was 38.9 ± 7.4% in control group (p=0.021). Discussion: We found no difference in terms of general muscle strength between POP group and healthy controls. Our results showed that Jamar scores, which represented general muscle strength of body, did not related to pelvic organ muscle strength.

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“…ree studies used the menstrual cycle as a model of reproductive functioning 29 , while two further studies combined the menstrual cycle with OC use [32][33] . 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 .…”

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%

“…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. Only one study showed a detrimental e ect of high concentrations of oestrogen on muscle function; N et al 32 found that static handgrip endurance was reduced in the late-follicular phase of the menstrual cycle when oestrogen levels are high. Results indicate that muscle hypertrophy & strength gain are higher in the LP than in the FP following 6 days of blood ow restriction training, although the sex di erence in the training response is non-existent.…”

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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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Grip strength and endurance throughout the menstrual cycle in eumenorrheic and women using oral contraceptives

Cited by 10 publications

References 36 publications

Menstrual Cycle Effects on Perceived Exertion and Pain During Exercise Among Sedentary Women

Menstrual Cycle Effects on Perceived Exertion and Pain During Exercise Among Sedentary Women

Assesment of Hand grip Strength in Patients with Pelvic Organ Prolapse

The relationship between oestrogen and muscle strength: a current perspective

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