Guidelines for the management of obesity have been published and projects to combat
obesity are being run. However, more effort needs to be invested. Studies on intervention …

Introduction Globally, there has been a decline in the age of menarche; the decline is higher
in poorer countries than in richer ones. The measurement of the decline was based on the …

Timing of fusion of the spheno-occipital synchondrosis (SOS) is correlated with age.
Previous research, however, has demonstrated variation in the timing of closure among …

The association between socioeconomic status and the onset age of menarche is still not
conclusive. This cross-sectional study was conducted among primary and middle school …

Background The age of menarche has been gradually declining since the end of the 20th
century. Few studies have been carried out about dysmenorrhea in Europe and they mainly …

Background There are differences in the age at menarche in different countries and it seems
that in recent decades gradually the age of puberty is declining. The aim of the present study …

Context: Badminton continues to be a highly competitive sport where training is introduced
at an early age and load has intensified. This exposes players to a greater risk of injuries, in …

There has been a secular decline in age at menarche since the 19th century. Early-maturing
women are more likely to have their sexual debut at a younger age, which in turn gives rise …

This article analyses long-term changes in the mean age at menarche (MAM) as a biological
indicator of changes in the standard of living in Indonesia. It finds that MAM was about 15.5 …

目的探讨中国青春期女生月经初潮较早与身体形态发育的关系. 方法资料均来自2010
年全国学生体质与健康调查数据, 采用概率单位回归法计算月经初潮年龄的第10 百分位数(P,.) …