Isabel Fragoso

University of Lisbon | UL

Intensive training combined with a growing body can predispose children to sports injuries. Our aim was to identify the importance of physical activity (PA) intensity and maturity as predictors of injury in youth. Information about injuries was collected using a questionnaire (LESADO), the PA intensity was assessed via accelerometry, and maturity w...

This study focus is to develop a new model to estimate skeletal age (SA) as a function of the biological maturation status in male soccer players, and to propose cut-off points to classify the biological maturation status based on the percentage of adult height (PAH) in male soccer players. SA was determined in 747 Portuguese male soccer players, u...

The present study aimed to estimate the height growth curve for Mexican boys and girls based on their body mass index (BMI) status (normal and overweight/obese) and to develop a height Lambda, Mu, and Sigma (LMS) growth reference for Mexican children aged 2 to 18 years. Methods Chronological age and height records (7,097 boys and 6,167 girls) were...

Aim: The aim of the present study was to compare the Preece-Baines 1 (PB1) model fit between longitudinal and cross-sectional data in male soccer players and to adjust the height growth curve by maturity status. Methods: A final sample of 57 male Portuguese soccer players from professional soccer academies was included. Longitudinal height recor...

The purpose of this study was to clarify the effect of body composition, particularly body fat percentage (BF%) and fat-free mass (FFM), on physical fitness and players’ on-court performance in U-14 elite Portuguese basketball players. A total of 166 male basketball players (age, 13.80 ± 0.38 years) and 131 female basketball players (age, 13.57 ± 0...

Objectives The aim of the present study was to analyze the moderating effect of maturation on the relationship between body fat and insulin resistance, in children from 9 to 12 years. Methods Maturity offset, homeostasis model assessment index of insulin resistance (HOMA-IR), and body fat percentage (BF%) were estimated in 127 children. Skeletal m...

Background Growth can make young athletes more vulnerable to sports injuries. Increased knowledge about injury profile and its predictors is an important part of an overall risk management strategy but few studies have produced information. Methods Information about injury profile and sports participation (SP) level was obtained by LESADO and RAPI...

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-...

A investigação científica no âmbito do talento desportivo procura dar contributos válidos para que se possa identificar, o mais cedo possível, os atletas com maior potencial para atingir níveis de excelência na idade adulta, asseverando assim, que estes recebem o treino especializado necessário à sua otimização desportiva. De facto, a literatura su...

Background: Growth can make young athletes more vulnerable to sports injuries. Increased knowledge about injury profile and its predictors, is an important part of an overall risk management strategy but few studies have produced information. Methods: Injury profile and physical activity (PA) level information’s were obtained by LESADO and RAPIL II...

Physical activity (PA) is beneficial, enhancing healthy development. However, it is estimated that one third of school-age children practicing sport regularly suffer from a serious injury. Maturation can make young athletes more vulnerable to sports injuries and increased knowledge about injury with specific PA exposure data is important to an over...

The association of the biological maturation, morphological attrib- utes, and fitness attributes of 13- to 14-year-old players selected to regional basketball teams, which participated in the Portuguese Festival of Youth Basketball, was analyzed in the study. A total of 416 under-14 Portuguese elite basketball players (male, n = 224; female, n = 19...

The aims of the present study are: (i) to describe structural and functional attributes of young male Portuguese basketball players aged 12-16; and (ii) to generate normative data according to chronological age and years from peak height velocity. A total of 281 male Portuguese young basketball players, between the ages of 12 and 16 were assessed i...

Introduction Engaging in sports activities at a young age has numerous health benefits but also involves risk of injury. Growth can make young athletes more vulnerable to sports injuries [1]. Few studies have produced information about injury profile and its predictors at these ages. The aim of this study is to determine the influence of age, matur...

Introduction: A valid food frequency questionnaire (FFQ) is a priority for epidemiological studies. We aimed to perform a relative validity of an FFQ for Portuguese adolescents. Methods: A semi-quantitative Portuguese FFQ (SQ-PortFood-FQ) was developed and the relative validity performed using the multiple-pass 24-h recall. Eighty adolescents (age...

Introduction: A valid food frequency questionnaire (FFQ) is a priority for epidemiological studies. We aimed to perform a relative validity of an FFQ for Portuguese adolescents. Methods: A semi-quantitative Portuguese FFQ (SQ-Port-Food-FQ) was developed and the relative validity performed using the multiple-pass 24-h recall. Eighty adolescents (age...

Objective: The aim of this study was to examine the relationship between the ratio of energy intake (EI) and energy expenditure (EE) and body composition, physical activity and macronutrients intake, considering maturity as a moderator. Methods: The study involved 459 adolescents aged 10 to 17. Energy and macronutrients intake were estimated usi...

Os objetivos do presente estudo foram: (i) descrever atributos estruturais e funcionais de jovens jogadores de basquetebol de elite do sexo masculino, com idade entre 12-16 anos; e (ii) gerar dados normativos de acordo com a idade e o estado de maturidade. No presente estudo foram avaliados 281 basquetebolistas de elite portugueses masculinos, com...

Skeletal age (SA) is considered the gold standard to assess the degree of maturation and has been widely used in sports, education and public health areas; however, it requires sophisticated equipment and well-trained technicians. Therefore, it is important to develop non-invasive methods for its evaluation. The aim was to develop an equation to pr...

PurposeThe implication of adolescence diet quality and of certain specific foods’ intake on HRQoL remain underexplored, and little importance has been given to biological changes (e.g. growth, maturation, dimorphism, body composition), that remarkably increase the variability of diet and physical activity behaviours. The aim of this study was to an...

During a national championship, the anthropometric, physiological and maturation attributes of 13-14-year-old players of regional selection basketball teams and their association with team´s final classification were analyzed. Body parameters (weight, height, skinfolds and lengths) were measured and physiological capacities assessed by sprint (20 m...

The adult height percentage (AHP) is an indicator of maturity state, which reflects variation in growth rate. Several methods estimates adult height; however, its similarities or differences have not been documented in a concrete way in literature. The aims of the present work were to compare three common methods of AHP estimation, to identify chil...

Introduction: Despite the growth in participation of younger generations in physical activity (PA), significant lack of knowledge exists regarding sports injuries [1 Stracciolini A, Casciano R, Levey Friedman H, et al. Pediatric sports injuries: an age comparison of children versus adolescents. Am J Sports Med. 2013;41(8):1922–1929. doi:10.1177/036...

BACKGROUND: The relationship between sports injuries, health related quality of life (HRQoL) and parental instruction is still not clear so our aim was to determine sports injuries biosocial predictors in Portuguese youth. METHODS: Information about HRQoL, parental instruction and sports injuries was assessed via three questionnaires (KIDSCREEN-52,...

The present study aims (i) to compare the maturational, morphological and fitness attributes of young basketball players of primary and secondary teams of an elite basketball academy, and (ii) to identify the set of morphological and fitness attributes which better discriminate the players from the two teams. A total of 116 male basketball players...

OBJECTIVE: To study the relation between the birth quarters, the bone maturity status of Under-15’s and the adult achieved levels of the same soccer players. METHODS: A total of 133 soccer players, from a Top Elite Soccer Club, participated in this study. The birth quarters (Q1, First; Q2, Second; Q3, Third; Q4, Fourth) and bone maturity status (La...

Purpose: The purpose of this study was to analyze the relationship between biological maturation and health-related quality of life (HRQoL) in Portuguese children and adolescents of both sexes when the effect of chronological age (CA) and volume of physical activity (VPA) were removed. Methods: HRQoL, biological maturation, CA, and VPA were asse...

The purpose of this study was to compare different methods of maturity evaluation and their relation with performance related physical and anthropometric variables in young soccer players, with different plasma zinc status. A total of 53 healthy male young soccer players (age: 13±1 years; body mass: 48±10 kg; stature: 160±10 cm) participated in thi...

Background: Physical activity (PA) is beneficial, enhancing healthy development. However, one-third of school-age children practicing sports regularly suffer from an injury. These injuries are associated with sex, chronological age, and PA level. Purpose: To identify the importance of age, PA level, and maturity as predictors of injury in Portug...

Objective: Voice quality provides information about the anatomical characteristics of the speaker. The patterns of somatotype and body composition can provide essential knowledge to characterize the individuality of voice quality. The aim of this study was to verify if there were significant differences in somatotype and body composition between n...

Background: It's becoming increasingly apparent that sports can present danger in the form of injuries. The extent of this problem calls for preventive actions based on epidemiological research. Methods: Two questionnaires (LESADO and RAPIL II) were distributed in four schools to 651 subjects aged between 10 and 18 years, involved in different l...

A presente publicação foi apoiada pela Fundação para a Ciência e Tecnologia, através do FUNDO DE APOIO À COMUNIDADE CIENTÍFICA – FACC-Edição de publicações Não Periódicas de Natureza Científica (processo 16 4 184).

We found that production parameters of a European Portuguese corpus are influenced by body composition: more prominently in the frequency parameters (f0, DP f0 and formants), perturbation parameters and noise parameters, for vowel segments [a] and [i]. We concluded that extralinguistic patterns of voice quality were significantly correlated with bo...

A food frequency questionnaire (FFQ) that efficiently measures food intake in a comprehensive manner is priority for epidemiology studies as this information is crucial for the investigation of associations between dietary factors and disease or disease-related markers. PURPOSE: To validate a semiquantitative FFQ for Portuguese adolescents. METHODS...

It is becoming increasingly apparent that sports can present a danger to health in the form of sports injuries. The extent of sports injury problem calls for preventive actions based on the results of epidemiological research.PURPOSE:Determine the prevalence and injury profile in Portuguese children and adolescents from different groups of sports p...

It is feasible to think that the body composition assessment may be influenced by maturational and zinc status, especially in young athletes, which perform regularly high volume of physical training. In accordance, it seems important to clarify the impact of these factors in body composition assessment in athletes, since errors may lead to mistakes...

Apesar da crescente profissionalização e popularidade do andebol em Portugal, a literatura científica produzida não comporta a validação de instrumentos de avaliação técnica e táctica de atletas por peritagem. O referido, justifica o desenvolvimento de uma escala de avaliação de aspectos técnicos e tácticos para atletas de andebol. Participaram no...

Background: The measures used to study relative adiposity in children and adolescents can be complex and confusing. Moreover, adolescence is characterized by important changes in size, maturation, and in psychological, socio-cultural and cognitive function. Due the differences in the rate of maturation, subjects with the same chronological age can...

This study aims 1- to describe and compare the anthropometric characteristics of male handball players from different levels of performance, and 2- to identify the morphological variables that allow differentiation of the level of performance for each individual playing position. A total of 212 male handball players (age, 23.6±5.2 years) were inclu...

The present study aims to investigate the association between the half 10.000 m race time, body composition characteristics and physiological responses at half race (i.e., 5.000 m); and to determine the predictor variables of 10.000 m road race time, in recreational female runners. Observational field study of a ’10.000 m road race’ in Brazil. A sa...

Background: Investigations have reported differences amongst player position groups in elite team-Handball (HB) players. Nevertheless, studies with normative physical fitness data of the HB playing positions at more than two different levels of male HB players have not been reported yet. Objectives: This study aimed: 1) to describe and compare th...

Introdução. Considerando que diferenças biológicas entre falantes, relativas às especificidades individuais da composição corporal e do tipo morfológico, refletem-se na produção de fala, este estudo teve como objetivo verificar a influência da composição corporal e do somatótipo nos parâmetros acústicos de qualidade vocal em falantes adultos do Por...

BACKGROUND/OBJECTIVES: Nutritional status and diet can have an important impact on the major body components of the human body. Adolescence is a decisive period of social and behaviour challenges, where diet and nutrition are the major contribute for the energy balance (EB): energy intake (EI) vs. energy requirements (ER) and therefore with body co...

The vocal quality characterization of a speaker can allow the identification of his particular phonetic settings and the use of his anatomic mechanism, during speech. We found that production parameters of a European Portuguese corpus are influenced by body posture: more prominently in the fundamental frequency for all evaluated vocal behaviors, an...

Introduction Maturity and adult body size estimates are considered to be of great significance in youth sports talent selection models. The purpose of this study was to validate a non-invasive method of predicting adult stature (PAS) and percentage of predict adult stature (PPAS), using TW3 skeletal age (SA) as a reference. Methods A sample of 200...

Journal Impact Factor 0.624 Purpose of the study: To test the validity of: the physical activity level (PAL) versus total Evenson Children (2008) bout (EC2008) and steps average counts (Savg); and the estimate of total energy expenditure using accelerometry data as reference versus physical activity energy expenditure (PAEE) obtained through self-r...

This study aims to clarify the relationship between the birth quarters, biological maturity and physical fitness (PF) in Under-15’s youth soccer players. All the participants (n=133) were Under15 from a Top-Elite Soccer Academy. The data collection period lasted 8 years (from Under15’s 2002/2003 season to Under15’s 2009/2010 season). The athletes’...

Objective: Clinical research in the field of voice disorders, in particular functional dysphonia, has suggested abnormal laryngeal posture due to muscle adaptive changes, although specific evidence regarding body posture has been lacking. The aim of our study was to verify if there were significant differences in sagittal spine alignment between n...

Introduction: The definition of normative data for speech production involves knowledge of biological differences reflected in the production of linguistic settings. The human body has a specific body composition, which differs from individual to individual, and a specific morphological type. Objective: The aim of our study was to verify if relatio...

This Academic study aimed to analyze morphologic, physiological, psychological, technical-tactical and biosocial variables as predictors of success / performance of male handball athletes (n = 230, ages, 23.5 ± 5.2 years), i.e., these five studies had as objective to study the discriminating power of morphological (Chapter 1), physiological (Chapte...

Researchers in the field of excellence in sport performance are become increasingly focused on the study of sport specific characteristics and requirements. In accordance, the purposes of this study were: (i) to examine the morphologic, fitness, handball-specific skills, psychological and "biosocial" differences between top elite and non-top elite...

The Proceedings of the 28th Pediatric Work Physiology Meeting.

Introduction: Research on expertise or in talento identification has tended to be mono-disciplinary (Phillips et al., 2010) or focused in the inter relationships between morphologic and fitness profiles. In accordance, this study aims to evaluated: (1) the contribution of morphologic, fitness, handball-specific skill, psychological and biosocial pr...

Introduction: Research on expertise or in talent identification has tended to be mono-disciplinary (Phillips et al., 2010) or focused in the inter relationships between morphologic and fitness profiles. In accordance, this study aims to identify the inter-relationships correlation between the morphologic, fitness, handball-specific skill (HBskill),...

Obesity has been linked to several physiological and psycho-social diseases, decreases in cognitive function, poor levels of scholastic achievement, low socioeconomic status and delayed onset of maturity. This study investigates the association between obesity and both academic performance and reasoning ability in 394 male and 398 females students...

This essay intends to evaluate the association between maturity, academic performance (AP), reasoning ability (RA) and socio-economic status (SES) in a sample of 792 children (394 boys and 398 girls), with ages between 6 and 13 years old. Maturity was estimated through the bone age (Tanner et al., 2001) and the academic performance was obtained thr...

The purpose of this study was to validate the Task and Ego Orientation in Sport Questionnaire (TEOSQ), in Portuguese as adopt the name Motivational Orientation Questionnaire in Sport (QOMD-TEOSQ by Fernandes & Serpa, 1997), through confirmatory factor analysis. Participated in the study, 203 male handball athletes, with aged between 18 and 36 years...

The objective of this study was to provide reference data for quantitative ultrasound (QUS, Sunlight Omnisense; BeamMed Ltd., Petach-Tikva, Israel) of the radius and tibia in Portuguese subjects. The evaluation was conducted with QUS in 430 healthy participants (213 girls and 217 boys) aged between 9 and 13yr. The results indicate that 13-yr-old gi...

Objective: To describe the anthropometric and maturity characteristics of a young athlete population who wish to play professional football. Sample: We studied 108 players (14-16 years) belonging to the schools of Sporting Club of Portugal. Methods: The variables used in this study were weight, height, predicted height and sitting height, maturity...

Objetivo: Describir las características condicionales de una población de deportistas jóvenes, tanto por nivel madurativo como por puestos específicos. Muestra: Se han estudiado 95 jugadores de fútbol (13-16 a˜nos) pertenecientes a escudelas deportivas de futbol. Métodos: Las variables utilizadas en este estudio han sido: edad, puesto específico (m...

The present study aims to build a multidisciplinary statistical model to predict handball player’s success. A total of 192 Portuguese (European) male handball players were studied: Top Elite athletes (n = 34, age, 25.7±4.9 years), Non-Top Elite athletes (n = 108, age, 25.1±4.9 years) and Junior Elite (n = 50; age, 18.2±0.8 years). Playing position...

In the context of physical education curricula, markers of physical fitness (e.g., aerobic capacity, muscular strength, flexibility, and body mass index or body fat) are usually evaluated in reference to health standards. Despite their possible mediating role in the relationship between weight-bearing or muscle forces and features of bone tissue, t...

Introduction: The morphologic characteristics of athletes can determine in several ways the success they will achieve in a few particular sports (Matkovic et al., 2003). So, the purpose of this study was to show how the seasonal birth influences the anthropometric variables and the performance level of elite young soccer players, disregarding the e...

The development of sport has guided sports sciences researchers to the study of excellence in sport performance. In accordance, this study aims to evaluate the relation between some morphological and biosocial factors and sport level and tactical position in handball players of Portuguese leagues. A total of 187 male handball athletes (age, 23.48±5...

In sports, the transition from junior to senior level is actualy a relevant issue. The aims of the current study were: (1) to identify the variables that may allow experts to discriminate between levels, and (2) to identify a set of variables and its contribution to predict junior handball player’s success. Thirty-four athletes from two levels (Jun...

In sport, the interpretation of performance has motivated researchers and practicians to study its modelling, in other words, the clarification of concepts and the identification of factors and indicators that are associated to sports success. Thus, the main goal of this work is to know the opinion of handball coaches about the major requirements o...

Talent is a key requirement to access the excellence in a competitive sport and its identification is the first step of a long process of specialization that allows the correct selection of subjects. To understand what the most influent variables to achieve success are, a questionnaire was administered to 71 handball coaches ("Questionnaire to Hand...

The aim of this investigation was to analyze differences in body composition and body fat distribution between subjects following a structured cardiac rehabilitation program (CRP) and subjects not involved in any CRP. Body composition and body fat distribution were assessed by dual-energy X-ray absorptiometry (DXA) in 62 male subjects, white, who h...

To document time trends in growth and nutritional status among Portuguese children from Lisbon, and their parents. Subjects and methods: Two growth surveys were carried out in Lisbon, Portugal in 1991 and in 2001 at the request of the Municipality of Lisbon. The 1991 sample was composed of 2018 children (992 boys and 1026 girls) and the 2001 sample...

No estudo da proporcionalidade de desportistas, tem sido utilizado o Método Phantom e o Método Combinado de Lentini. Neste trabalho pretende-se usar e comparar os modelos acima descritos utilizando uma amostra (n=34) de atletas seniores de andebol (idade: 23.65 ± 4.76 anos), do sexo masculino, de duas equipas participantes no campeonato da Liga Pro...

A range of relevant anthropometric factors can be considered which are subject to strong genetic influences (e.g. stature) or are largely environmentally determined and susceptible to training effects (see Reilly, Bangsbo and Franks, 2000). However, in the throwing events like handball, the anthropometric profile of elite players is first based in...

Introduction. Childhood obesity has been increasing in many countries worldwide, being considered by the World Health Organization - WHO (1998) as a global epidemic. Its aetiology is complex, and influenced by the dynamics between biological and environmental factors. Aim. The aim of this study is: (1) to document the prevalence of overweight and o...

Every now and then the Lentini Combined Method has been used instead of the original Phantom Method to study the sportsmen proportionality. Therefore the aim of the present study was (1) to compare these two methods; (2) to test the Lentini Combined Method in 34 (N) male handball players, aged 23,65 ± 4,76 years, of two different teams participatin...