Mabliny Thuany

University of Porto | UP · Faculty of Sports

The purposes of this study were (i) to describe differences in participation in 100-mile ultra-marathons by continent; (ii) to investigate differences in performance between continents; and (iii) to identify the fastest runners by continent and country. Data from 148,169 athletes (119,408 men), aged 18–81 years, and finishers in a 100-miles ultra-m...

Background: Studies with rural children are limited, and results are divergent regarding the information on movement behaviours. Purpose: to (i) describe the physical activity and sedentary behaviour in children; (ii) synthetize the year and place of publication, methodological quality, and instruments used to measure physical activity and seden...

Background Running participation/performance is a complex system. Understanding the variables associated with these behaviors may help to increase population physical activity and improve performance. This study aimed to investigate social and training variables important for running performance using a network approach. Methods This cross-section...

Background Physical activity is a multifactorial trait, determined by both individual and environmental characteristics, it seems relevant to understand the determinants related to youth guidelines accomplishment. The present study aimed to verify the differences between the Brazilian federative units regarding to the prevalence of youth physical a...

Despite the increasing scientific interest in the relationship between pacing and performance in endurance sports, little information is available about pacing and pacing variation in ultra-endurance events such as ultra-triathlons. Therefore, we aimed to investigate the trends of pacing, pacing variation, the influence of age, sex, and performance...

Our purpose was to find the fastest race courses for elite Ironman ® 70.3 athletes, using machine learning (ML) algorithms. We collected the data of all professional triathletes competing between 2004 and 2020 in Ironman 70.3 races held worldwide. A sample of 16,611 professional athletes originating from 97 different countries and competing in 163...

BACKGROUND Ultra-marathon running is the most popular ultra-endurance competition in terms of the number of races and runners competing annually worldwide; however, no study has compared pacing and performance over a long period. OBJECTIVE The present study analyzed the pacing of successful finishers and non-finishers in multi-stage ultra-marathon...

BACKGROUND Pacing during cycling and running in an IRONMAN® triathlon has been investigated in only one study with elite IRONMAN® triathletes. We have, however, no knowledge of how professional triathletes pace during an IRONMAN® World Championship. OBJECTIVE To investigate the split-by-split speed, pacing strategies and pacing variability in prof...

The present study examined gender differences in health, physical activity, physical fitness, real and perceived motor competence, and executive function indicators in three time points, and analyzed the dynamic and non-linear association between health, biological, behavioral, and cognitive variables in children followed over time. A total of 67 c...

BACKGROUND The sex difference in athletic performance has been thoroughly investigated in single sport disciplines such as swimming, cycling, and running. In contrast, only small samples of long-distance triathlons, such as the IRONMAN® triathlon, have been investigated so far. OBJECTIVE The aim of the study was to examine a potential sex differen...

BACKGROUND Since the first edition of IRONMAN® Hawaii in 1981, the number of races and finishers in the IRONMAN® format has increased considerably. Scientific literature has provided many insights into this specific sport discipline. However, we have no knowledge of where the fastest professional IRONMAN® triathletes originate and where the fastest...

BACKGROUND The majority of participants in IRONMAN® triathlon races are age group athletes. We have extensive knowledge about recreational athletes' training and competition participation. Nonetheless, age group athletes have to achieve fast race times to qualify for the IRONMAN® World Championship in ‘IRONMAN® Hawaii’. They would therefore benefit...

There is evidence for the effectiveness of youth combined plyometric and sprint with change of direction (COD) training. However, the evidence is not well-known regarding the in-season effects of biological age (peak height velocity—PHV) on the motor adaptive processes following combined plyometric and COD with ball training (P-CODBT) in youth socc...

Background: An increasing number of people living with type 1 diabetes mellitus (T1DM) are pushing their physical limits to compete at the sport's highest level. Muscle, liver, and glycogen metabolism can be normal in athletes with diabetes with good glucose management, and modifications to insulin dose and nutrition can facilitate exercise perfor...

Abstract It is well known that weather and pacing have an influence on elite marathon performance. However, there is limited knowledge about the effect of weather on running speed in elite marathoners. The aim of the present cross-sectional study was to investigate potential associations between running speed and weather variables in elite runners...

Short- to middle-term plyometric training has been shown to be an effective method to promote youth fitness and health. However, there is no knowledge of previous studies that investigated the sex and age effects on physical fitness following different PT surfaces (i.e., firm vs. sand) in schoolchildren. This study examined the effects of age and s...

Exercise-associated hyponatremia (EAH) was first described as water intoxication by Noakes et al. in 1985 and has become an important topic linked to several pathological conditions. However, despite progressive research, neurological disorders and even deaths due to hyponatremic encephalopathy continue to occur. Therefore, and due to the growing p...

A plethora of factors determine elite cycling performance. Those include training characteristics, pacing strategy, aerodynamics, nutritional habits, psychological traits, physical fitness level, body mass composition, and contextual features; even the slightest changes in any of these factors can be associated with performance improvement or deter...

Background. Ultramarathons with distances over 180 km might lead to different results regarding participation, performance, and age compared to shorter runs of 50 and 100 km. Objective. To evaluate ultramarathons with distances above 180 km in relation to runners' peak age and performance. Methods. Verification of the quantity of competitions in ru...

Purpose The purpose of this study was to investigate the frequency of countries represented in the TOP20 long-distance elite runners ranking during 1997–2020, taking into account the countries’ Human Development Index (HDI), and to verify if the Matthew effect can be observed regarding countries’ representativeness in the raking alongside the years...

Objective: The knowledge of the most predictive split discipline and the pacing during a triathlon race is of utmost importance for planning an ultra-triathlon race. This study aimed at investigating the pacing during cycling and running splits in three different multi-stage ultra-triathlon race formats (i.e., Quintuple, Deca, and Double Deca Iron...

This study aims to investigate the fear or failure (FoF) in Brazilian runners of both sex, performance levels and age categories, as well as to verify the relationship between FoF and socioeconomic status (SES). Sample size as composed by 916. Age, sex, body height, body weight, SES, and running pace were self-reported. The Multidimensional Questio...

Aims: (i) to compare the running performance of non-professional female runners from different Brazilian states; (ii) to estimate the relationship between environmental state-related variables and running performance; and (iii) to analyze the mediation role of training commitment in the relationship between the environment and running performance....

This study aims to analyze the specialized literature on the protocols, instruments, and techniques used to train and assess strength in gymnastics practitioners or athletes who are represented". Studies included in this review address the assessment and training of strength in gymnastics or athletes. Fourteen studies assessing the physical capacit...

Purpose: The relationships between anthropometric and training variables with running performance were previously investigated. However, it is possible that through the moderating role of anthropometric variables, the magnitude of the relationship between training and performance may be changed. The purpose of this study was to estimate the mediati...

Este estudio tuvo como objetivo describir la agregación de comportamientos del estilo de vida en adolescentes brasileños e identificar la asociación de estas agregaciones con el exceso de peso. Se ha utilizado información sobre el consumo alimentario, tiempo frente a la televisión y práctica de actividad física de una muestra compuesta por 14141 ad...

Background: The two aspects of the influence of environmental conditions on marathon running performance and pacing during a marathon have been separately and widely investigated. The influence of environmental conditions on the pacing of age group marathoners has, however, not been considered yet. Objective: The aim of the present study was to inv...

Objective: The influence of environmental conditions, such as temperature, barometric pressure, humidity, precipitation, sunshine and cloud cover on marathon running has been widely investigated. However, the influence of such conditions on the pacing of elite marathoners has not been considered yet. The present study aimed to investigate whether...

Background Pacing has been investigated in different kinds of ultra-marathon races, but not in one of the toughest ultra-marathons in the world, the ‘Spartathlon’. Objective The aim of the present study was to analyse the pacing of female and male finishers competing in the ‘Spartathlon’ in regards to their age and performance groups. Methods A t...

The study was evaluated the effect of physically active lessons (PAL) on cognitive performance (ED) during two years of follow-up in children. Four classes were divided into two intervention classes (IG: n = 34) and two control classes (CG: n = 27). Five evaluations were performed; before the intervention (M1), after three (M2) and nine (M3) months...

Background: Despite the increasing scientific interest in the relationship between pacing and performance in endurance sports, little information is available about pacing and pacing variation in ultra-endurance events such as ultra-triathlons. Therefore, we aimed to investigate the trends of pacing, pacing variation, the influence of age, sex, and...

Aging is a biological process, which is usually associated with health-related problems, which are related to some behaviours, such as those related to movement and eating habits. So, the purpose of the present study was to identify the clustering of behavioural and eating habits related to non-communicable disease in Brazilian elderly, and to esti...

A análise do desempenho esportivo deve ser feita através de uma perspectiva que contemple a influência de diversos fatores. Neste contexto, fatores socioeconômicos e demográficos do estado apresentam-se, também, como preditores no desempenho esportivo, sobretudo em esportes que aparentemente são considerados “baratos e de fácil acesso” como é o cas...

Background and Objectives: Increases in the number of participants in time-limited ultra-marathons have been reported. However, no information is available regarding the trends in participation, performance and age in 12 h and 24 h time-limited events. The aim of the study was to describe the trends in runners’ participation, performance and age in...

The purpose of this study was to investigate the performance stability in elite half-marathoners of both sexes. The study was composed by 24 elite athletes (12 female and 12 male), ranked among the Senior World TOP20 half-marathoners, who completed a half-marathon race for at least three consecutive years. Tracking was tested using autocorrelations...

Running surrounded by nature at night, often with limited contact with other people, is one of the safest physical activities during the COVID-19 pandemic. The aim of this article is to determine what motivates night recreational runners and to analyse the differences between men and women according to age, and also to see whether the fact of havin...

Background and Objectives: The 6-h ultra-marathon is the shortest time-limited ultra-marathon race, but little has been investigated regarding this race format. Previously, only the age of peak performance in the context of longer time-limited ultra-marathons was determined. The purpose of this study was to investigate the trends in 6-h ultra-marat...

Our aim was to characterize the Brazilian studies that evaluated sedentary behavior, describing the main characteristics of the studies and identifying the used instruments. Using the PRISMA methodology, the search occurred on 25 August 2019 and was updated on 17 October 2020 in the following databases: PUBMED, LILACS, and SCIELO. Studies in Englis...

The purpose of this study was to identify the individual and environmental predictors associated with performance in female runners of different ages. The sample comprised 440 female Brazilian runners, who answered an online questionnaire, that provided information regarding height, weight, age (categories: “young adult”, “adult”, “early middle-age...

Due to differences in runners' profiles, which can be related to sociodemographic characteristics , motivations for running can vary. This study aimed to identify Brazilian runners' motivations for their practice, and the factors associated among runners who point to look for performance improvement as their main motivation. The sample comprised 10...

Due to differences in runners’ profiles, which can be related to sociodemographic characteristics, motivations for running can vary. This study aimed to identify Brazilian runners’ motivations for their practice, and the factors associated among runners who point to look for performance improvement as their main motivation. The sample comprised 109...

Sports performance is a multifactorial trait that can be associated with individual and environmental characteristics. In this study, the sample comprised 35 male runners, enrolled in the “InTrack” project. Information regarding variables related to runners’ training was obtained via an online questionnaire, while anthropometric and body compositio...

Background: The environment can play a relevant role in performance in runners. This study aimed to verify the distribution of the best European road runners across the continent, and to investigate variables related to country representatives in the European Senior outdoor top list 2019. Methods: The sample comprised 563 European runners, aged 18-...

O objetivo do presente estudo é descrever a prevalência de deslocamento ativo entre adolescentes brasileiros no trajeto casa-escola considerando as unidades federativas e regiões do país, e verificar os preditores associados a esse comportamento. A amostra foi composta por 99.967 adolescentes (ambos os sexos; média de idade 14,24 anos) que particip...

Background: The purpose of this study was to establish sex-specific percentile curves and values for the running pace of Brazilian non-professional runners. Methods: The sample comprised 1152 amateur runners aged 18-72 (61.8% males), from the five Brazilian regions. The runners answered an online questionnaire providing information about their b...

Differences in economic and social aspects between Brazilian states/regions can determine participation in running. The purpose of this study was to identify the occurrence of the OUTrun (i.e., Out Running), mapping the main routes carried out by runners, as well as the factors associated with this behavior between different Brazilian regions. The...

The objective of this study was to analyze the acute effect of hyperoxia during the maximal treadmill test (MTT) of runners. Participants included 10 female street runners who performed the MTT under two different conditions: hyperoxia (HYPX), inhaling oxygen (60% O2) every 3 min; and normoxia (NORM), without additional oxygen inhalation. Both grou...

Background and Objectives: We examined the possible trend in the age of peak performance in elite endurance athletes according to sex, continent of athletes’ national citizenship, and ranking position. Since performance is a multifactorial trait, this information can be used to guide the long-term training and to plan the strategies related to the...

The purpose of this study was to investigate the multivariate profile of different types of Brazilian runners and to identify the discriminant pattern of the distinct types of runners, as a run-ners' ability to self-classify well. The sample comprised 1235 Brazilian runners of both sexes (492 women; 743 men), with a mean age of 37.94 ± 9.46 years....

The ecological model theory highlights that human development (or a given behavior) is the result of the interaction of variables derived from different levels, comprising those directly related to the subjects and those related to the environment. Given that, the purpose of this study is to establish whether runners’ performance may vary among dif...

O objetivo do presente trabalho foi verificar a relação entre diferentes componentes do somatótipo com atividade física e componentes da aptidão física em crianças de 6 a 11 anos de idade. A amostra foi composta por 173 crianças de ambos os sexos (96 meninos, 77 meninas), com idades entre 6 e 11 anos, matriculadas no ensino Fundamental I. Foram obt...

Resumo: A análise do desempenho esportivo deve ser feita através de uma perspectiva que contemple a influência de diversos fatores. Neste contexto, fatores socioeconômicos e demográficos do estado apresentam-se, também, como preditores no desempenho esportivo, sobretudo em esportes que aparentemente são considerados "baratos e de fácil acesso" como...

Aims: to identify and describe the clustering of characteristics related to running amongst Brazilian runners using latent class analysis and to verify if there is a profile associated with better performance. Material and Methods: a sample of 1149 Brazilian runners answered an online questionnaire, that provided information about biological (sex,...

Abstract: The objective of this study was to describe the profile of bicycle users, their perceived difficulty to cycle, and the most frequent trip origins and destinations in Aracaju, Northeast Brazil. Our cross-sectional study sampled 1001 participants and we collected information through structured interviews. Aged ≥15 years, participants were r...

Unlike other mammals, the human being is not an "innate" sprinter; on the other hand, when taking into account the ability of running for long distances, few animals are as efficient as humans. Despite this ability be seen as a key behavior for the human evolution process, given it allowed the survival of the humanity , nowadays the running enduran...

Background. Hyperglycemia reduces tendon homeostasis. Effects of physical exercise on diabetic rats have been widely studied; however, the effects of a combined physical and insulin therapy on biomechanical properties of the Achilles tendon (AT) remain unclear. Therefore, the objective of this study was to evaluate the effects of the combination of...

Sports performance is a multifactorial trait resulting from the interplay of individual, environmental, and task characteristics. Due to its complex, dynamic, and multidimensional nature , understanding the performance variability among athletes requires the adoption of a holistic perspective, that considers the integration of the levels, interacti...

The increase in the number of runners has been observed around the world. Among the factors related to the performance into the modality, the characteristics of the environment (natural and built) have not been well explored. The purpose of this study is to verify the performance associated factors among Brazilian runners, taking into account indiv...