Decreased cortical bone density and mechanical strength with associated elevated bone turnover markers at peri-pubertal peak height velocity: a cross-sectional and longitudinal cohort study of 396 girls with adolescent idiopathic scoliosis

ABSTRACT CONTEXT AND OBJECTIVE: Peak height velocity (PHV) is an important maturational event during adolescence that affects skeleton size. The objective here was to compare bone variables in adolescents who practiced different types of sports, and to identify whether differences in bone variables attributed to sports practice were dependent on somatic maturation status. DESIGN AND SETTING: Cross-sectional study, São Paulo State University (UNESP). METHODS: The study was composed of 93 adolescents (12 to 16.5 years old), divided into three groups: no-sport group (n = 42), soccer/basketball group (n = 26) and swimming group (n = 25). Bone mineral density and content were measured using dual-energy x-ray absorptiometry and somatic maturation was estimated through using peak height velocity. Data on training load were provided by the coaches. RESULTS: Adolescents whose PHV occurred at an older age presented higher bone mineral density in their upper limbs (P = 0.018). After adjustments for confounders, such as somatic maturation, the swimmers presented lower values for bone mineral density in their lower limbs, spine and whole body. Only the bone mineral density in the upper limbs was similar between the groups. There was a negative relationship between whole-body bone mineral content and the weekly training hours (β: -1563.967; 95% confidence interval, CI: -2916.484 to -211.450). CONCLUSION: The differences in bone variables attributed to sport practice occurred independently of maturation, while high training load in situations of hypogravity seemed to be related to lower bone mass in swimmers.

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Significance of peak height velocity as a predictive factor for curve progression in patients with idiopathic scoliosis

Scoliosis ◽

10.1186/1748-7161-10-s1-o16 ◽

2015 ◽

Vol 10 (S1) ◽

Author(s):

Masaaki Chazono ◽

Takaaki Tanaka ◽

Katsuki Kono ◽

Nobumasa Suzuki ◽

Keishi Marumo

Keyword(s):

Idiopathic Scoliosis ◽

Predictive Factor ◽

Peak Height ◽

Curve Progression ◽

Height Velocity ◽

Peak Height Velocity

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Hubungan Status Gizi dan Aktivitas Fisik dengan Kejadian Hipertensi Remaja

Jurnal Gizi ◽

10.26714/jg.10.2.2021.10-19 ◽

2021 ◽

Vol 10 (2) ◽

pp. 10

Author(s):

Romadhiyana Kisno Saputri ◽

Akhmad Al-Bari ◽

Ria Indah Kusuma Pitaloka

Keyword(s):

Physical Activity ◽

Nutritional Status ◽

Quantitative Research ◽

Peak Height ◽

Height Velocity ◽

Peak Height Velocity ◽

Cross Sectional ◽

Obesity And Overweight ◽

Increase Risk ◽

Overweight Adolescents

Adolescence is peak height velocity that affect changes in body composition, rapidgrowth on weight, bone mass, pysical activity and nutritional status. Overweight and lack ofphysical activity are risk factors of hyertension in adolescents. Overweight adolescents havea 4,85 times risk of developig hypertension compared to adolescents with normal nutritionalstatus. Lack of physical activity has 7,86 times the risk of developing hypertension thanadolescents with active physical activity. Hypertension in adolescents increase risk ofmorbidity and mortality in adults. This study aim to determine the correlation between nutritional status and physicalactivity with hypertension in adolescents. A quantitative research with cross sectional designwas developed. Respondents in this study were 75 college students. Data analysis usingSpearman’s Correlation test. Proportion of obesity and overweight was 20%. Physical activity of the respondentsbelongs to light category. The incidence of hypertension I 14,67% and hypertension II2,67%. Results shows that there was correlation between nutritional status and physicalactivity with hypertension in adolescents.Keywords : nutritional status, physical activity, hypertension, adolescents

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Self-perceived social relationships are related to health risk behaviors and mental health in adolescents

Ciência & Saúde Coletiva ◽

10.1590/1413-812320212611.3.15912019 ◽

2021 ◽

Vol 26 (suppl 3) ◽

pp. 5273-5280

Author(s):

Danilo Rodrigues Pereira da Silva ◽

André de Oliveira Werneck ◽

Ricardo Ribeiro Agostinete ◽

Afrânio de Andrade Bastos ◽

Rômulo Araújo Fernandes ◽

...

Keyword(s):

Mental Health ◽

Public Schools ◽

Social Relationships ◽

Tobacco Smoking ◽

Health Risk Behaviors ◽

Peak Height ◽

Height Velocity ◽

Peak Height Velocity ◽

Cross Sectional ◽

Biological Maturation

Abstract Although changes have been observed in social relationships in the recent years, especially among younger generations, little evidence is available concerning factors associated with adolescents’ perceived social relationships. In this study we investigated the association between self-perceived social relationships, health-related behaviors, biological maturation, and mental health in adolescents. This is a cross-sectional study conducted with 1,336 adolescents (605 boys and 731 girls) aged between 10 to 17 years from public schools. Self-perceived social relationships (family, friends, and teachers), feelings of stress and sadness, academic performance, tobacco smoking, alcohol and fat consumption, physical activity, and screen time were evaluated by a questionnaire. Biological maturation was assessed by the peak height velocity. We observed that worse perceived social relationships were associated with tobacco smoking (family and teachers), alcohol drinking (teachers), higher consumption of fat (teachers), greater feelings of stress (family and teachers) and sadness (family and friends), and poor academic achievement (friends and teachers).

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The Study of Maturational Timing Effect in Elite Portuguese Adolescent Basketball Players: Anthropometric, Functional and Game Performance Implications

Applied Sciences ◽

10.3390/app11219894 ◽

2021 ◽

Vol 11 (21) ◽

pp. 9894

Author(s):

Isabel Fragoso ◽

Sérgio Ramos ◽

Júlia Teles ◽

Anna Volossovitch ◽

António Paulo Ferreira ◽

...

Keyword(s):

Peak Height ◽

Upper Body ◽

Height Velocity ◽

Peak Height Velocity ◽

Basketball Players ◽

Cross Sectional ◽

Male Adolescents ◽

Body Strength ◽

Upper Body Strength ◽

Game Performance

To estimate age at peak height velocity (APHV) in Portuguese male adolescents and; test the effect of maturational status in physical fitness attributes and individual game performance of U-14 basketball players. One mixed-longitudinal cohort with a sample of 439 Portuguese male adolescents and; one cross sectional sample of 172 Portuguese elite U-14 basketball players. The on-time group was defined within a 1-year band (more or less) from mean APHV. Preece-Baines model 1 was adopted to fit the mean stature curve. Independent samples t-tests and Kruskal-Wallis tests were performed and effect size (partial eta square) was calculated. The growth fitting revealed an APHV around 13.45 years for Portuguese male adolescents. Early maturing players exceeded significantly their peers in body size and composition, jump power and upper body strength. Early and on-time maturing players scored better in rebounds won per game (APHV = 13.81, 13.30 years), Performance Index Rating (PIR) and points scored per minute. Maturation influences morphology attributes and strength regardless of the APHV (13.81, 13.45, 13.30 years) used to obtain the cut-off points. It is recommended to use the new Portuguese mean APHV value to avoid extreme classifying bias groups.

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Peak Height Velocity as a Maturity Indicator for Males with Idiopathic Scoliosis

Journal of Pediatric Orthopaedics ◽

10.1097/01241398-200005000-00003 ◽

2000 ◽

Vol 20 (3) ◽

pp. 286-288 ◽

Cited By ~ 21

Author(s):

Kit M. Song ◽

David G. Little

Keyword(s):

Idiopathic Scoliosis ◽

Peak Height ◽

Height Velocity ◽

Peak Height Velocity

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Aptidão cardiorrespiratória em crianças e adolescentes

Brazilian Journal of Kinanthropometry and Human Performance ◽

10.5007/1980-0037.2018v20n6p535 ◽

2019 ◽

Vol 20 (6) ◽

pp. 535-543

Author(s):

Kenia Rejane de Oliveira Batista ◽

Mona Gizelle Dreger de Oliveira ◽

Carla Fabiane dos Santos Lemos ◽

Josiene De Oliveira Couto ◽

Nara Michelle Moura Soares ◽

...

Keyword(s):

Cardiorespiratory Fitness ◽

Age Groups ◽

Peak Height ◽

Cross Sectional Study ◽

Height Velocity ◽

Age Group ◽

Peak Height Velocity ◽

Cross Sectional ◽

Significance Level ◽

And Gender

Cardiorespiratory fitness is an important health status indicator. The purpose of this study was to verify the cardiorespiratory fitness according to age group and gender in children and adolescents from Sergipe, Brazil. It is a cross-sectional study with sample consisting of 195 adolescents of both genders with mean age of 11.75 ± 3.0 years. For the characterization of participants, a questionnaire with age and gender identification designed by researchers was used. Subsequently, participants were submitted to anthropometric evaluation in order to estimate the maturational stage by means of the peak height velocity (PHV). The 20-meter back-and-forth test was used to estimate cardiorespiratory fitness. Two-way ANOVA was applied with sample divided into two groups (“up to 13 years” and “above 13 years”). Polynomial contrast was used to identify the type of tendency for cardiorespiratory fitness, and simple contrast for multiple comparisons. All procedures were performed using SPSS version 22.0 software, considering 5% significance level. In the “over 13 years” group, there was a significant effect on the cardiorespiratory capacity behavior according to “gender” [F(1, 45) = 5.54, p = 0.02, r = 0.33] and “age” [F(4.45) = 3.37, p = 0.02, r = 0.48]. The simple contrast identified increased cardiorespiratory fitness behavior in relation to age groups of 15 and 16 year when compared to the age group of 14 years. It was concluded that gender and age positively influence cardiorespiratory fitness from the maturational reference age in the study group.

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