Longitudinal changes in body composition, physical capacities and energy expenditure in boys and girls during the onset of puberty

Bitar, Abdelali; Vernet, Jean; Coudert, J; Vermorel, M.

doi:10.1007/s003940070019

Cited by 98 publications

(109 citation statements)

References 21 publications

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“…11,27 According to previous research with obese adolescents, the FFM, which is the main determinant of EE, increased steeply in boys while showed the opposite trend in girls, both sexes submitted to an exercise protocol. 28 It is important to mention that, in the present investigation, after long-term multidisciplinary therapy, the obese adolescents (boys and girls) showed an increase in percentage of FFM; however, at baseline and after treatment, boys had…”

Section: Discussioncontrasting

confidence: 42%

Efeitos da terapia multidisciplinar de longo prazo sobre a composição corporal de adolescentes internados com obesidade severa

Prado¹,

Siegfried²,

Dâmaso³

et al. 2009

J. Pediatr. (Rio J.)

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Section: Discussioncontrasting

confidence: 42%

Efeitos da terapia multidisciplinar de longo prazo sobre a composição corporal de adolescentes internados com obesidade severa

Prado¹,

Siegfried²,

Dâmaso³

et al. 2009

J. Pediatr. (Rio J.)

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“…Other reasons for these findings might be anthropometric characteristics predicting swimming speed such as body height [23][24][25]. Since anthropometry of an athlete changed across lifetime [26,27], certain years of life may favour elite swimming performance. Geladas et al [24] examined the relationship between anthropometry, physical capacity, and sprint swimming speed in swimmers of both sexes aged 12-14 years old.…”

Section: Change In the Age Of Peak Swimming Speedmentioning

confidence: 99%

“…Tuuri et al [30] showed that a greater fat mass in female swimmers was more strongly related to lower levels of exercise. Bitar et al [26] reported that during the onset of puberty, boys and girls gained fat-free mass, whereas fat mass gain was higher in girls than in boys. Lean body mass, which primarily reflects muscle mass, begins to increase during early puberty in both boys and girls.…”

Section: Sex Difference In the Age Of Peak Swimming Speedmentioning

confidence: 99%

The Fastest Female Butterflyswimmers Were Younger Than the Fastest Male Butterfly Swimmers

Zingg¹,

Wolfrum²,

Rüst³

et al. 2014

Med Sport

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Beat (2014). The fastest female butterflyswimmers were younger than the fastest male butterfly swimmers. Medicina Sportiva, 18(1):1-9. DOI: https://doi.org/10.5604/17342260.1094778 THE FASTEST FEMALE BUTTERFLY SWIMMERS WERE YOUNGER THAN THE FASTEST MALE BUTTERFLY SWIMMERS AbstractIntroduction: The age of peak freestyle swimming speed was reported to be at ~17 years for women and ~19 years for men. However, the age of peak swimming speed for other strokes such as butterfly is not known.Objectives: We investigated whether the age of peak swimming speed and peak swimming speed changed across years in elite butterfly and freestyle swimmers at national level (Switzerland) between 1994 and 2011.Methods: Changes in swimming speed and age of the annual ten fastest swimmers across years were investigated using linear regression analyses and two-way analysis of variance (ANOVA).Results: For both butterfly and freestyle, the age of peak swimming speed was ~19 years for women. For men, the age of peak swimming speed was at ~22 years over all distances with the exception in 200m freestyle with ~21 years. The age of peak swimming speed increased for women in 50m from ~19 years to ~21 years, in 100m and 200m butterfly from ~18 years to ~20 years while it remained unchanged in 50m, 100m and 200m freestyle at ~19, ~18 and ~20 years, respectively. For men, the age of peak swimming speed was constant for butterfly at ~24, ~23 and ~21 years, respectively, and for freestyle at ~23 years in 100m and ~22 years in 200m across years with the exception of a decrease in 50m freestyle from ~23 years (1994) to ~22 years (2011). Both women and men increased peak swimming speed over all distances. Sex difference in peak swimming speed increased in butterfly from 10% in 1994 to 12% in 2011 in 50m to 200m and in freestyle in 100m from 12% in 1994 to 14% in 2011 while it remained unchanged in 50m and 200m freestyle at 12% and 10%, respectively.Conclusion: To summarize, in butterfly swimming, women seemed to achieve peak swimming speed at ~19 years and men at ~21-22 years. For practical applications, a career as butterfly swimmer may endure longer in men compared to women.

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“…From these studies we can conclude that the distribution and development of fat mass is different in boys and girls (1)(2)(3)(4)(5)(6). The current obesity epidemic urges us to learn more about the physiologic development of fat mass during puberty, a critical period in body composition development.…”

mentioning

confidence: 99%

Changes and Tracking of Fat Mass in Pubertal Girls

Vink

Coeverden

Mil

et al. 2010

Obesity

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Puberty is a critical period in body composition development. The influence of puberty on the development of fat mass asks for further investigation. We investigated the development of fat mass during puberty in a longitudinal prospective study in 152 healthy nonobese white girls, initial ages between 9 to 12 years. The influence of menarcheal age and the existing of tracking of fat mass have been analyzed. In 10 years time, participants were measured on eight time points. Various anthropometric data were collected, breast development was staged according to Tanner and body composition was determined with the dual‐energy X‐ray absorptiometry (DXA) scan. Calculations were made with the use of a linear mixed model. Fat mass increases from 7.9 kg (23.6%) at B1 to 18.5 kg (29.3%) at B5. Fat mass is higher in girls with an early menarche than in girls with a late menarche from B2. Girls in the quartile with initially the lowest fat mass have a chance of being in the same quartile after 10 years of 77% (P < 0.001). Girls in the quartile with initially the highest fat mass, have a risk of staying in the highest quartile of 55% (P < 0.001). Menarcheal age is of great influence on the development of fat mass. Girls with an early menarche, will have a bigger fat mass, especially at the end of puberty. Tracking of fat mass exists: a high amount of fat mass in early puberty will continue to exist at young adulthood.

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Longitudinal changes in body composition, physical capacities and energy expenditure in boys and girls during the onset of puberty

Cited by 98 publications

References 21 publications

Efeitos da terapia multidisciplinar de longo prazo sobre a composição corporal de adolescentes internados com obesidade severa

Efeitos da terapia multidisciplinar de longo prazo sobre a composição corporal de adolescentes internados com obesidade severa

The Fastest Female Butterflyswimmers Were Younger Than the Fastest Male Butterfly Swimmers

Changes and Tracking of Fat Mass in Pubertal Girls

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