Associations between sleep habits and interference of premenstrual symptoms in athletic performance in Japanese adolescent athletes: a cohort study over a 2-year period.

Premenstrual symptoms are common problems among female high-school and college athletes. This prospective study investigated associations between sleep habits and interference of premenstrual symptoms in athletic performance among Japanese adolescent athletes. A school-based survey on menstruation and school life was conducted among 623 female high-school students in 2015 and 2016, and data from the two surveys were connected.

Lifestyle Factors Associated with Premenstrual Syndrome: A Cross-sectional Study of Japanese High School Students.

Study Objective: To investigate the relationships between premenstrual syndrome (PMS) and lifestyle, sleep, and dietary habits among Japanese high school students.

Design: Cross-sectional study.

Setting: Two public high schools in Sendai, the largest city in northeastern Japan.

Effectiveness of natural S-equol supplement for premenstrual symptoms: protocol of a randomised, double-blind, placebo-controlled trial.

Introduction: Premenstrual syndrome (PMS) comprises a range of mood, behavioural and physical symptoms, and impairs many women's quality of life. Isoflavones are expected to stabilise the natural fluctuation of the oestrogen cycle through their selective oestrogen receptor modulator-like activities that alleviate PMS symptoms. Equol, a metabolite of a soy isoflavone converted from daidzein by specific gut bacteria, has a greater bioavailability compared with other soy isoflavones.

Effect of an educational program on adolescent premenstrual syndrome: lessons from the Great East Japan Earthquake.

Background: Catastrophic disasters such as great earthquakes cause tremendous physical and mental damage. We previously reported that the Great East Japan Earthquake worsened premenstrual symptoms among adolescent girls in the disaster-stricken area.

Objectives: We reanalyzed these data to determine the positive effects of education on premenstrual symptoms.

Premenstrual symptoms interference and equol production status in Japanese collegiate athletes: A cross-sectional study.

Aim: Consumption of soy isoflavones reduces the risk of estrogen-related diseases, such as menopausal symptoms, osteoporosis, and cardiovascular disease. Equol is metabolized from the isoflavone daidzein by intestinal bacteria and has higher bioavailability than other isoflavones. Equol producers are believed to benefit from soybean consumption to a greater extent than non-producers.

Stress fracture and premenstrual syndrome in Japanese adolescent athletes: a cross-sectional study.

Objectives: To investigate the relationship between the occurrence of stress fracture and premenstrual syndrome (PMS)/premenstrual dysphoric disorder (PMDD) in Japanese adolescent athletes.

Design: Cross-sectional study.

Setting: Osaka, Japan.

Relation between premenstrual syndrome and equol-production status.

Aim: Consumption of isoflavones, which are predominantly derived from soybeans, reduces the risk of estrogen-related diseases, such as menopausal symptoms, breast cancer, osteoporosis, and cardiovascular disease. Equol is more bioavailable than other soy isoflavones, and equol producers are believed to benefit to a greater extent. This study was conducted to evaluate the relation between premenstrual syndrome (PMS) and equol-production status in Japanese reproductive-age women.

Fish Consumption and Premenstrual Syndrome and Dysphoric Disorder in Japanese Collegiate Athletes.

Study Objective: To determine the specific characteristics of premenstrual syndrome (PMS)/premenstrual dysphoric disorder (PMDD) in Japanese collegiate athletes, with a focus on their fish consumption.

Design: Cross-sectional study.

Setting: A university in Osaka, the largest city in western Japan.

Premenstrual Syndrome and Premenstrual Dysphoric Disorder in Japanese Collegiate Athletes.

Study Objective: To determine the prevalence and impact of premenstrual syndrome (PMS) and premenstrual dysphoric disorder (PMDD) in Japanese collegiate athletes, with a focus on their disruption of athletic performance.

Design: Cross-sectional study.

Setting: A university in Osaka, the largest city in western Japan.

Successful planned pregnancy in a patient with St Jude medical prosthetic mitral valve.

A primiparous woman with a St Jude Medical (SJM) mitral valve prosthesis and receiving anticoagulant drug delivered a healthy male infant by spontaneous normal vaginal delivery. Oral warfarin was replaced by subcutaneous heparin at the 6th week of gestation and the dosage of heparin was adjusted to maintain a partial thromboplastin time between 2.0 and 2.