نتایج جستجو برای: puberty
تعداد نتایج: 9510 فیلتر نتایج به سال:
Background: Due to lack of detailed standards of sexual maturity in individuals with Intellectual, sensory and motor disability in Iran and the importance of timing of onset of puberty in these individuals, a study is necessary. By knowing the onset of puberty, physiologic and behavioral changes can be traced in these people, as well as the potential impact of the puberty on the underlying dise...
Background: Puberty and its consequence changes are one of the most important events of each person's life. Knowledge and practice about puberty health lead to successful passage of this period. This study was aimed to determine factors predicting the knowledge and practice of girl students about puberty health in Tabriz high schools. Materials and Methods: This study was a cross-sectional stud...
Background: Adolescence is a critical stage of growth and development. That is associated with changes in body shape and appearance. Issues such as irregular menstrual periods, amenorrhea, and menstrual cycle are major issues in women's health. The purpose of this study was to examine the determinants of physical puberty health based on the Health Belief Model (HBM) among female adolescents. ...
The up-regulation and down-regulation of gonadotropin-releasing hormone (GnRH) in central precocious puberty is not yet known. However, recent advances in neuroendocrinology have shown the controlling role of arginine-phenylalanine RF-amide-related peptides (RFRPs) on GnRH secretion in different phenomenon of reproduction such as estrus cycle and pregnancy, but the exact role of RFRPs in pubert...
OBJECTIVE To determine whether the commencement and length of puberty influences dual x-ray absorptiometry (DXA) values of bone mineral content (BMC) and bone mineral density (BMD) in the axial and appendicular skeleton at skeletal maturity. STUDY DESIGN From the Bone Mineral Density in Childhood Study, we identified children who began puberty and completed sexual and skeletal development and...
objectives the aim of this study was to identify the health-related counseling needs of adolescent girls to assist them in this period of development. materials and methods forty teenage (13 - 19-year-old) girls, who had at least experienced 3 menstrual cycles, participated in this qualitative study. in-depth semi-structured interviews were used to collect the data. the content analysis method ...
The timing of puberty is a critical life history trait of short-lived species; spring-born individuals mature rapidly and breed in the season of birth, whereas young born in mid- to late summer delay puberty until the next spring. The cues that govern the transition from rapid to delayed maturation in natural populations remain unknown. To identify ecologically relevant photoperiod cues that co...
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