Estimation of Pubertal Growth-Spurt Parameters in Children and Adolescents in Colombia: Comparison between Low and Moderate Altitudes.

Context-specific information, including differences in geographical areas, such as distinct altitudes, can be important to explain variations in physical growth. We aimed to compare the estimation of maximum growth velocity and pubertal growth-spurt parameters of children and adolescents living at low and moderate altitudes in Colombia. A cross-sectional study, including a representative cohort of 30.

Comparison of Anthropometric Indicators That Assess Nutritional Status From Infancy to Old Age and Proposal of Percentiles for a Regional Sample of Chile.

Anthropometric variables are used to evaluate health, dietary status, disease risks, and changes in body composition. The purpose of this study was to compare weight, height, and Body Mass Index (BMI) with American references from the National Center for Health Statistics (NCHS-2012), using BMI and Tri-Ponderal Mass Index (TMI) to propose percentiles for evaluating nutritional status of children, adolescents, and adults, ages 5-80 years old. A descriptive cross-sectional study was conducted in 15,436 (8,070 males and 7,366 females) children, youths and adults in the Maule region (Chile).

Estimation of Pubertal Growth Spurt Parameters in Children and Adolescents Living at Moderate Altitude in Colombia.

Objective: Knowledge of the biological parameters of pubertal growth spurt allows verification of secular changes and exploration of the timing of puberty. The aim of the study was to estimate final height, age at peak height velocity (APHV), and peak height velocity PHV (cm/y) in children and adolescents living at moderate altitude in Colombia.

Methods: A cross-sectional study was designed in 2.

Association Between Endocrine Markers, Accumulated Workload, and Fitness Parameters During a Season in Elite Young Soccer Players.

The purpose of this study was to analyze differences between endocrine markers in soccer players, based on playing positions, and correlations between endocrine markers (testosterone, cortisol, growth hormone, and insulin-like growth factor-1), with accumulated workload training and fitness parameters [maximal oxygen uptake (VO), countermovement jump (CMJ), and isometric maximal strength (1-RM) of the knee for hamstring (ISH) and quadriceps (ISQ) muscles] during early-, mid-, and end-seasons. Twenty-four elite soccer players under 17 participated in this study. The results showed that there was no difference between levels of the endocrine markers among the different positions of the players.

Ultrasound reference values for the calcaneus of children and adolescents at moderate altitudes in Peru.

Objective: a) Establish reference values for bone parameters by using the speed of sound (SOS, m/s) of broadband ultrasound attenuation (BUA, dB/MHz) and establish a bone quality index (BQI=αSOS+βBUA) for children and adolescents living in a region of moderate altitude, b) compare bone parameters with an international standard (with different ethnic, socio-economic, and lifestyle backgrounds) by using ultrasound of the calcaneus (heel bone) (QUS).

Methods: A descriptive cross-sectional study was carried out with children and adolescents between the ages of 6.0 and 16.

Physical growth and body adiposity patterns in children and adolescents at high altitudes in Peru: Proposed percentiles for assessment.

Objectives: This study's purpose was to compare physical growth (PG) patterns of children and adolescents living at high elevations with those of other geographic regions, relate body adiposity indicators, and develop percentile reference tables for assessing physical growth and body adiposity.

Methods: The sample included 1536 children and adolescents ages 5.0 to 17.

Physical Growth and Body Adiposity Curves in Students of the Maule Region (Chile).

Physical growth and body adiposity patterns provide relevant information to infer the nutritional and health status of students. Our objectives were (a) to compare the variables of body adiposity and physical growth of Chilean children and adolescents with data from the CDC-2012 and international studies, and (b) to develop regional reference curves to evaluate growth and body adiposity. 8,261 children and adolescents were studied.

Stability in post-seasonal hematological profiles in response to high-competitive match-play loads within elite top-level European soccer players: implications from a pilot study.

Introduction: The stability of hematological status indices is a key determinant of optimal sport performance. The capacity to monitor hematological behaviors of elite soccer players may better explain the stresses placed upon physiological systems and the potential decrements in performance and physical capacity. The primary aim of this investigation was to examine the post-seasonal hematological status of professional top-level soccer players in response to seasonal match-play and training demands, in terms of the training practices, intensity, and loadings that they experience before, during, and after each season.

Reference norms for evaluating maximum expiratory flow of children and adolescents of the Maule Region in Chile.

Background: The norms for evaluating the maximum expiratory flow (MEF) usually are developed according to chronological age and height. However, to date, little research has been conducted using reference values that take into account the temporal changes of biological maturation. The objectives of this study were to (a) compare the MEF with those of other international studies, (b) align the MEF values with chronological and biological age, and (c) propose reference standards for children and adolescents.

Reference standards to assess physical fitness of children and adolescents of Brazil: an approach to the students of the Lake Itaipú region-Brazil.

Background: The importance of assessing body fat variables and physical fitness tests plays an important role in monitoring the level of activity and physical fitness of the general population. The objective of this study was to develop reference norms to evaluate the physical fitness aptitudes of children and adolescents based on age and sex from the lake region of Itaipú, Brazil.

Methods: A descriptive cross-sectional study was carried out with 5,962 students (2,938 males and 3,024 females) with an age range of 6.

Physical Growth and Biological Maturation of Children and Adolescents: Proposed Reference Curves.

Background/aim: The study of physical growth variables in terms of chronological age and biological maturation may provide a common reference point to reflect on the occurrence of body dimensions in and between individuals. The objectives of this study were as follows: (a) verify if the observed gender differences in the variables of physical growth by chronological age are confounded by physical maturation, (b) compare physical growth patterns with the reference of the Centers for Disease Control and Prevention (CDC)-2012, and (c) develop regional curves to assess physical growth in terms of biological maturation.

Methods: Researchers studied 3,674 children and adolescents.

[TRENDS TO INCREASED BODY FAT AND BLOOD PRESSURE OF UNIVERSITY STUDENTS IN TWO COHORTS (2009-2014)].

Objective: a) describe changes in body adiposity, b) quantify the increase in blood pressure and c) verify if blood pressure increases according to the categories of body fatness in two cohorts (2009-2014) in university students.

Methods: two transverse measurements made in 2009 and 2014. The 2009 sample consisted of 309 university students (138 men and 171 women) and 2014 by 319 young people (136 men and 183 women) were compared.

[ASSOCIATION BETWEEN HEALTH RELATED QUALITY OF LIFE, BODYWEIGHT STATUS (BMI) AND PHYSICAL ACTIVITY AND FITNESS LEVELS IN CHILEAN ADOLESCENTS].

Aim: the objective of this study was to analyze the potential relationships between Health Related Quality of Life (HRQoL) with weight status, physical activity (PA) and fitness in Chilean adolescents in both, independent and combined analysis.

Method: a sample of 767 participants (47.5% females) and aged between 12 and 18 (mean age 15.

Waist Circumferences of Chilean Students: Comparison of the CDC-2012 Standard and Proposed Percentile Curves.

The measurement of waist circumference (WC) is considered to be an important means to control overweight and obesity in children and adolescents. The objectives of the study were to (a) compare the WC measurements of Chilean students with the international CDC-2012 standard and other international standards, and (b) propose a specific measurement value for the WC of Chilean students based on age and sex. A total of 3892 students (6 to 18 years old) were assessed.

[Reliability of a questionnaire to assess physical activity in normal weight adolescents and overweight].

Introduction: In recent years it has reported high levels of obesity associated with low levels of physical activity, which shows the need for assessment as elements of health and quality of life.

Objective: To verify the ability of reproducibility of a PA questionnaire in school adolescents classified as normal weight, overweight and obese.

Material And Methods: A descriptive cross-sectional study was conducted in 1306 adolescent students (562 men and 744 women) from three municipal educational institutions of the province of Talca (Chile).

Influence of parents and physical education teachers in adolescent physical activity.

The objective of this study was to analyze the influence of parents and Physical Education teachers on adolescent's extracurricular Physical Activity. Data were obtained from the Chilean System for the Assessment of Educational Quality test with a large representative sample of 23,180 students (11,927 females and 11,253 males aged 13.7 and 13.

[Cardiorespiratory capacity in children living at moderate altitude].

Objective: To determine the cardiorespiratory capacity of school children living at moderate altitude.

Patients And Method: 795 children (394 children and 401 girls) were selected from urban public schools in Arequipa, Peru at moderate altitude (2,320 m). Anthropometric variables (body mass, height, body fat percentage) and cardiorespiratory capacity were assessed using the Course Navette test, considering the following categories: deficient, poor, fair, good, very good and excellent.

[Applicability of BMI in adolescent students living at moderate altitude of Perú].

Introduction And Objectives: The use of BMI is highly contested, especially in populations in which growth phase is characterized by short stature for his age. The aim is to verify if the BMI is applicable to a school sample of adolescents living in a region of moderate altitude of Peru.

Material And Methods: A descriptive cross-sectional study in 319 adolescent students (181 men and 138 women) from 12.

Referencial values for the physical growth of school children and adolescents in Campinas, Brazil.

Aims: To compare the values of weight, height and IMC with the regional curve (Cariri); to compare with the international references of the CDC-2000; and to construct references that will measure physical growth from childhood to adolescence.

Subjects And Methods: The sample consists of 6531 individuals with an age range of 6.0-17.

Growth and body composition in Brazilian female rhythmic gymnastics athletes.

The aim was to analyse the physical growth and body composition of rhythmic gymnastics athletes relative to their level of somatic maturation. This was a cross-sectional study of 136 athletes on 23 teams from Brazil. Mass, standing height and sitting height were measured.

[Prediction equations for fat percentage from body circumferences in prepubescent children].

Introduction: The analysis of body composition through direct and indirect methods allows the study of the various components of the human body, becoming the central hub for assessing nutritional status.

Objective: The objective of the study was to develop equations for predicting body fat% from circumferential body arm, waist and calf and propose percentiles to diagnose the nutritional status of school children of both sexes aged 4-10 years.

Methods: We selected intentionally (non-probabilistic) 515 children, 261 children and 254 being girls belonging to Program interaction and development of children and adolescents from the State University of Campinas (Sao Paulo, Brazil).

[Assessment of body adiposity in school students in Arequipa, Peru].

Objectives: To assess the relation between the percentage of body fat, the Body Mass Index and the abdominal perimeter in a population of school students who live at a moderate altitude.

Materials And Methods: A cross-sectional study was conducted, for which 394 boys and 405 girls between 6 and 11 years of age were selected using a probabilistic method. All the school students chosen were middle class children who lived in the urban area of Arequipa, Peru, located at a moderate altitude (2320m above sea level).

[Physical exercise and its prescription in patients with chronic degenerative diseases].

Chronic degenerative diseases constitute one of the main causes of death at a global level, and their significant increase has alerted many countries, which are taking measures to reduce risk factors, some of which are modifiable; being the regular exercise a means of prevention and rehabilitation of these diseases. The objective of this revision is to analyze the necessary parameters to take into account for the prescription of an exercise program in patients with obesity, high blood pressure dyslipidemia and diabetes mellitus type 2.