Background: Polycystic ovary syndrome (PCOS) is a common endocrine disorder that is characterized by menstrual irregularity and elevated serum androgens, and is often accompanied by insulin resistance. The etiology of PCOS is unknown. Lifestyle interventions and weight loss, where appropriate, remain first-line treatments for women with PCOS. Regular physical activity is recommended for women with PCOS to maintain a healthy weight and cardiovascular fitness. Purpose: To review the evidence for the impact of various exercise interventions on hormone levels in women with PCOS. Methods: A systematic review of original studies indexed in PubMed that utilized an exercise intervention in women with PCOS and reported hormone values pre- and post-intervention. Studies in which the effects of the exercise intervention could be determined were included. Results: Vigorous aerobic exercise improves insulin measures in women with PCOS. Resistance or strength training may improve androgen levels, though additional studies are warranted. Studies with yoga are limited but suggest improvements in androgens. Limited information is available on the impact of exercise on adipokines and anti-Müllerian hormone, warranting further investigation. Conclusions: Recommended guidelines for women with PCOS include vigorous aerobic exercise and resistance training to improve measures of insulin sensitivity and androgen levels.
Background: Holistic approaches are needed to complement existing therapies for polycystic ovary syndrome (PCOS), a common disorder affecting the health of reproductive-aged females.Objective: To determine whether thrice-weekly mindful yoga practice improves endocrine, cardiometabolic, or psychological parameters in women with PCOS.Methods: Thirty-one women with PCOS between the ages of 23 and 42 years and living in Erie County, Pennsylvania, were recruited for this randomized, controlled study arm, which was part of a larger 3-part investigation. Women were randomly assigned to either a mindful yoga intervention group or no intervention (control) group. Group classes were 1 hour, thrice weekly. Initial endocrine, cardiometabolic, and psychological measurements were compared with measurements taken after the 3-month intervention period. Measurements included free testosterone, dehydroepiandrosterone, androstenedione, body mass index, waistto-hip ratio, fasting blood glucose and insulin levels, and anxiety and depression scores.Results: Twenty-two women completed the 3-month intervention period, 13 in the mindful yoga group and 9 in the control group. Paired comparisons of pre-and postintervention parameters indicated that women who completed the mindful yoga intervention had significantly lower free testosterone levels (5.96 vs 4.24 pg/mL; P<.05) and dehydroepiandrosterone levels that trended lower. Improved testosterone may persist for several months after completion of a 3-month, thrice-weekly mindful yoga intervention. Additionally, improvements were seen in measures of anxiety and depression. Conclusion:The improvements observed suggest that regular mindful yoga practice can be a useful complementary therapeutic option for women with PCOS, particularly for improving serum androgen levels, a hallmark feature of PCOS. This improvement occurred in the absence of weight loss and may persist even if there is a lapse in practice. (ClinicalTrials.gov No. NCT03383484)
Objectives This interventional study will investigate the effect of daily use of a mindfulness app on measures of participant anxiety, well-being, and perceived outlook during the COVID-19 pandemic, by comparing pre-intervention survey responses to post-intervention survey responses. Trial design Randomized, controlled trial with parallel assignment. Adults will be assigned either to daily use of a meditation app for 30 days or to a control group (no usage of meditation app) with a 1:1 equivalence allocation ratio. Participants Inclusion Criteria: Participants must be 18 or older, have a smartphone, able to download apps to their smartphone, must be fluent in the English language, able to complete surveys on their own, and must be in the United States for the duration of the study. Exclusion Criteria: Current regular use of a mindfulness or meditation app, regular practice of mindfulness or meditation, regular therapy sessions, inability to complete surveys independently, or any mental health restrictions that would prevent participation. All data will be collected through the Insight Timer Meditation App and Google Forms. This trial is being conducted through the Lake Erie College of Osteopathic Medicine in Erie, PA, with all data collected digitally. Intervention and comparator Intervention: Participants will be sent a link to a pre-intervention survey prior to first use of the mindfulness app. Participants will be instructed to use the Insight Timer app for 10 minutes daily for 30 days. At the end of the 30-day intervention period, participants will be sent a link for the post-intervention survey. Two months after the conclusion of the 30-day intervention period, participants will be sent a link for another post-intervention survey. Comparator: Participants will receive the same surveys, but will not use any mindfulness app for the 30-day intervention period. After this 30-day period, participants are invited to use the Insight Timer app if they so choose. Main outcomes The main outcomes are (1) anxiety as assessed by survey questions adapted from the GAD7, comparing pre-intervention to post-30-days of app usage and (2) well-being as assessed by survey questions adapted from the WHO-5, comparing pre-intervention and post-30-days of app usage. Randomization Participants will be allocated to interventions via a block random sequence generator with a 1:1 allocation ratio in blocks of 8. Blinding (masking) No masking is being used in this study (open label). Numbers to be randomized (sample size) Approximately 75 participants will be randomized to each group, with an estimated enrollment of 150 participants. Trial status This study is protocol version number 27-126 and was approved on May 10, 2020. Recruitment began on August 19, 2020 and will end February 28, 2021. The study is estimated to complete on April 30, 2021. Trial registration This trial was registered to ClinicalTrials.gov on 30 April 2020. The ClinicalTrials.gov Identifier is NCT04369378. Full protocol The full protocol is attached as an additional file, accessible from the Trials website (Additional File 1). In the interest in expediting dissemination of this material, the familiar formatting has been eliminated; this Letter serves as a summary of the key elements of the full protocol.
BackgroundElevated testosterone (T) is routinely reported as a marker of hyperandrogenemia in rodent models for polycystic ovary syndrome (PCOS). In women with PCOS, elevated serum androstenedione (A4) is associated with more severe phenotypes, including a positive correlation with serum T, DHEAS, free androgen index (FAI), LH, and LH/FSH ratio. Furthermore, A4, along with calculated free T and FAI, was identified as one of the best predictors of PCOS in adult women of all ages (18 to > 50 y).ObjectiveThe objective of this study was to investigate serum A4 levels in early adolescent and young adult prenatally androgenized (PNA) female rats, a model for PCOS.MethodsPregnant rats were injected with 5 mg T daily during gestational days 16–19 (PNA rats, experimental group) or an equal volume of vehicle (control group). Female offspring of both groups had tail vein blood drawn for serum analysis at 8 and 16 weeks of age. ELISAs were used to quantify serum A4 and T levels.ResultsSerum A4 and T were elevated in 16-week-old PNA rats compared to controls. There was no significant difference in either hormone at 8 weeks of age.ConclusionsThe PNA rats demonstrated elevated serum A4 and T in young adulthood, as has been observed in women with PCOS, further validating this as a model for PCOS and underscoring the importance of serum A4 elevation as a parameter inherent to PCOS and a rodent model for the disorder. Significant A4 elevation develops between early adolescence and early adulthood in this PNA rat model.
Background Polycystic ovary syndrome (PCOS), a common hormone disorder affecting reproductive and metabolic health of reproductive-age women, was shown in a previous study from these authors to be associated with increased sympathetic tone. Increased sympathetic tone contributes to long-term health risks for cardiovascular disease and promotes PCOS pathogenesis. Objective To determine whether weekly osteopathic manipulative treatment (OMT) improves physiologic measures of sympathetic tone in women with PCOS. Methods In the second phase of a larger study from this author group, 25 women with PCOS, aged 22 to 43 years, living in Erie, Pennsylvania, were recruited to participate in a randomized, controlled evaluation of OMT intervention. Participants were randomly assigned to either an OMT intervention or control group. The OMT group received weekly manipulation of Chapman points and rib-raising for viscerosomatic reflexes associated with the ovaries, adrenal glands, and heart for 12 consecutive weeks. Physiologic measures of sympathetic tone were collected, along with metabolic, endocrine, and reproductive measurements, both before the 3-month intervention and within 1 week of completing the intervention. Measurements included heart rate and blood pressure at rest and after 15 minutes of aerobic exercise, heart rate recovery after exercise, resting heart rate variability, serum androgen levels, body mass index, fasting blood glucose and insulin levels, and menstrual cycle length. Results Nineteen women completed the study. Comparing pre- and postintervention parameters, women with PCOS in the OMT intervention group experienced an improvement in postexercise systolic blood pressure (135.8 vs 129.1 mm Hg) and a trend toward heart rate recovery (23.2 vs 29.4 seconds). No significant improvements were found in the control group or in any other physiologic parameters measured. No significant improvements were found in the endocrine, metabolic, or reproductive parameters measured, although free testosterone was slightly lower after 3 months of weekly OMT (5.69 vs 4.64 pg/mL). Conclusion Improvements in sympathetic tone after OMT suggest that weekly manipulation of Chapman points and viscerosomatic reflexes can be a useful adjunctive therapeutic option for women with PCOS. (ClinicalTrials.gov No. NCT03383484)
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