[Purpose] This study investigated changes in the thickness of the transversus abdominis muscle at various stages of the menstrual cycle. [Subjects] The subjects were 15 young healthy females with regular menstrual cycles. [Methods] A regular menstrual cycle was defined as a 28-day cycle comprising 3 phases: the menstrual phase, the follicular phase, and the luteal phase. For the purpose of the ...

BACKGROUND Previous studies of the relationship between the menstrual phases and smoking behavior have been problematic, so the association of menstrual phases with smoking behavior and correlations among smoking, psychological and physical conditions in each phase of the menstrual cycle are unclear. METHODS To accurately examine the association between menstrual phases and the amount of smok...

INTRODUCTION Circulating strains of Staphylococcus aureus (SA) have changed in the last 30 years including the emergence of community-associated methicillin-resistant SA (MRSA). A report suggested staphylococcal toxic shock syndrome (TSS) was increasing over 2000-2003. The last population-based assessment of TSS was 1986. METHODS Population-based active surveillance for TSS meeting the CDC de...

BACKGROUND Menstrual cycle function may continue to be altered after discontinuation of oral contraceptives (OC). Few studies have been published on the effects of recent OC use on menstrual cycle parameters; none have examined characteristics of the menstrual flow or the quality of cervical mucus. The purpose of this retrospective matched cohort study is to assess biomarkers of the menstrual c...

OBJECTIVES This study aimed to determine the frequency of dysmenorrhea, as identified by different definitions, in a population of young women, and to investigate factors associated with this complaint. MATERIALS AND METHODS A final group of 408 young women completed a self-assessment questionnaire. This was a cross-sectional analytical study. RESULTS Menstrual pain was reported by 84.1% of...

We investigated the effects of time-pressure stress on Raven’s Standard Progressive Matrices performance in 64 lowand 64 high-trait anxious female subjects, tested either during premenstruation or menstruation. Based on previously reported associations between arousal/stress and intelligence test performance, we predicted that menstrual cycle variation would interact with stress-induced arousal...

Fifteen highly neurotic women and 21 women who were low in neuroticism participated in this study. The women were surveyed three times over a single menstrual cycle during the mid-late luteal, menstrual, and late follicular phases. Each time, the participants were asked to use reappraisal to regulate their emotions, which were evoked by a sad film clip, and their subjective emotional experience...