Lack of linkage between height and weight and age at menarche during the secular shift in growth of Japanese children

Tsuzaki, Sayumi; Matsuo, Nobutake; Ogata, Tsutomu; Osano, Mitsuru

doi:10.1080/03014468900000552

Cited by 17 publications

(10 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Increments in height and weight over the 50-year period in both genders confirm previous reports of rapid growth during the post-World War II period [15,16,18]. The increments in height and weight from 1950 to 1960 are rapid compared to the rest of the survey period which can be explained by acceleration in the tempo of growth.…”

Section: Discussionsupporting

confidence: 76%

“…Many studies have also reported an early onset of puberty [15,18], including menarche in girls [16]. During the same period, other studies have reported an increase in BMI among Japanese children [19,20] and concluded that childhood obesity is increasing in Japan.…”

Section: Introductionmentioning

confidence: 89%

“…There is a common view that the body size of Japanese children, including height, weight and sub-ischial leg length, has increased since 1950 [15][16][17]. Many studies have also reported an early onset of puberty [15,18], including menarche in girls [16].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Secular Changes in BMI and Obesity Risk in Japanese Children: Considerations from a Morphologic Perspective

Kagawa¹,

Hills²

2011

TOOBESJ

View full text Add to dashboard Cite

Abstract:The increasing prevalence of childhood obesity is a global health issue. Past studies in Japan have reported an increase in both body mass index (BMI) and risk of obesity among children and adolescents. However, changes in body size and proportion in this population over time have also influenced BMI. To date, no study of secular changes in childhood obesity has considered the impact of changes in morphological factors. The current study explored the secular changes in BMI and childhood obesity risk among Japanese children from 1950 to 2000 with consideration of changes in body size and the proportions using The Statistical Report of the School Health Survey (SHS). The age of peak velocity (PV) occurred approximately two years earlier in both genders across this period. While the increments in height, sitting height and sub-ischial leg length relative to height levelled off by 1980, weight gain continued in boys. Between 1980 and 2000, the rate of the upper body weight gain in boys and girls were 0.7-1.3 kg/decade and 0.2-1.0 kg/decade, respectively. After considering body proportions, increments in body weight were small. It could be suggested that the increments in weight and BMI across the 50-year period may be due to a combination of changes including the tempo of growth and body size due to lifestyle factors.

show abstract

Section: Discussionsupporting

confidence: 76%

Section: Introductionmentioning

confidence: 89%

See 1 more Smart Citation

Secular Changes in BMI and Obesity Risk in Japanese Children: Considerations from a Morphologic Perspective

Kagawa¹,

Hills²

2011

TOOBESJ

View full text Add to dashboard Cite

show abstract

“…Cooper et al (1996), in a British study, found that girls who were heavier at birth had a later mean age of menarche by 2.2 months, but those who were heavier at 7 years had an earlier mean age of menarche by 7.3 months. Secular trend towards earlier menarche reflects largely, if not solely, the secular change in tempo of physical growth, as studies in Japanese children have shown (Tsuzaki et al, 1989). Further studies in twins showed that the timing of onset of puberty is largely influenced genetically, and the single environmental factor that stands out as most significant-possibly explaining as much as 25% of the variation in timing of puberty-is simply nutritional status in childhood; overnutrition and obesity seem to trigger pubertal changes (Karlberg, 2002).…”

Section: Question 2: How Does Maternal and Childhood Malnutrition Affmentioning

confidence: 91%

Difficulties with age estimation of internet images of south‐east Asian girls

Stathopulu

Hulse

Canning³

2003

Child Abuse Review

View full text Add to dashboard Cite

Community paediatricians are increasingly asked to provide expert opinion on internet child pornography related to 'sex tourism', mostly in south-east Asian countries. The girls involved are often prepubertal, and the main legal question is to establish whether they are under 13 years of age. This paper provides a review of the literature related to '97.5% of south-east Asian girls will show pubertal changes of B2 stage by the age of 13.7 years' this question. Although there are limited data of age of menarche from the countries at risk of 'sex tourism', one recent study from the Philippines showed that the mean age of menarche was similar to the mean age of British girls born between 1982 and 1986. There are no data in the above countries on the early pubertal changes in breast development, but studies from India and China suggested that these might be more prolonged than for British girls. In particular, the interval between B2 stage (early pubertal breast development) and menarche was nearly 3 years in these developing countries, compared with 2 years for the British girls. Maternal malnutrition and girls small for gestational age at birth resulted in an earlier menarche, while chronic malnutrition, severe enough to cause stunting in preschool years, caused a delay in menarche. Taking into account information from the existing studies, we estimated that 97.5% of south-east Asian girls will show pubertal changes of B2 stage by the age of 13.7 years.

show abstract

“…The age at thelarche has advanced about one year since mid-1980s and early 1990s among US white girls [2,3] and Danish girls [4]. With regards to menarche, trend toward earlier menarche is continuing in China [5] and Korea [6] since 1980s, meanwhile decrease in menarcheal age appears to be slowed down in developed nations such as US [7] Japan [8] and some European countries [9,10]. Also Pediatr Gastroenterol Hepatol Nutr Fig.…”

Section: Introductionmentioning

confidence: 99%

Childhood Obesity and Pubertal Development

Kim

Park

2012

Pediatr Gastroenterol Hepatol Nutr

View full text Add to dashboard Cite

During the past decades, advancement in pubertal maturation in children has been noticed worldwide. Growing evidence indicates that increasing prevalence of obesity in children is a major factor for the secular trend of earlier puberty. In girls, several epidemiologic studies suggest that earlier pubertal onset and earlier menarche might be caused by obesity. On the other hand, in boys, few research reported an association between obesity and pubertal development, and the results are inconsistent; Some studies found a link between obesity and delayed puberty, but others reported a causal relationship between obesity and early puberty. To date, mechanisms linking childhood obesity and earlier puberty remain unclear. In this review, we presented the potential impact of obesity on puberty-related hormones and summarized human studies on potential relationship of childhood adiposity and pubertal development. (Pediatr Gastroenterol Hepatol Nutr 2012; 15: 151∼159)

show abstract

Lack of linkage between height and weight and age at menarche during the secular shift in growth of Japanese children

Cited by 17 publications

References 3 publications

Secular Changes in BMI and Obesity Risk in Japanese Children: Considerations from a Morphologic Perspective

Secular Changes in BMI and Obesity Risk in Japanese Children: Considerations from a Morphologic Perspective

Difficulties with age estimation of internet images of south‐east Asian girls

Childhood Obesity and Pubertal Development

Contact Info

Product

Resources

About