Renato Ferraz
Biographic Data
| ID | 888264 |
|---|---|
| NAME | Renato Ferraz |
| GIVEN NAMES | Renato |
| FAMILY NAME | Ferraz |
| SIGNATURE | FERRAZ R |
| AFFILIATIONS | University of Beira Interior |
| ORCID | 0000-0002-7530-512X |
| VERIFIED | Yes |
| TOTAL WORKS | 19 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 19 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1994 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 0 |
Effect of 12 weeks differential learning vs. classical learning approaches on motor skills related to shot put in healthy young adult
Purpose The objective of this study was to compare the effect of 12-weeks of differential learning intervention vs. classical learning in the shot-put for healthy and physically active students. Methods In this study, 114 sports science students (64 males; 50 females; age 21.20 ± 2.15 years; body mass: 67.42 ± 12.30 kg; body height: 1.73 ± 0.09 m; BMI: 22.61 ± 1.20 kg.m-1) participated in this study. A total of 114 students completed the study. S…
The defensive playing style was associated with match-running performance and team success in the Fifa Women's 2023 World Cup
Introduction Currently, there are no data in the women's soccer literature about playing style without ball possession and its impact on match-running performance or competitive success. The main objective of this study is to verify whether there was a relationship between match-running performance, team success, and playing style without ball possession in the FIFA Women's 2023 World Cup. Methods Twenty-one variables related to tactical and tech…
Intra and inter variation in training load, recovery state and technical–tactical performance across a standard microcycle in Sub-elite youth football players
These findings demonstrate that the microcycle followed a structured pattern, with matches concentrating objective intensity and training sessions eliciting greater perceived effort. Practically, training for U11 should emphasize motor efficiency and load regulation, while U13 programs should target high-intensity capacity and tactical coordination. Over time, integrating multidimensional monitoring (GPS, sRPE, TQR, FUT-SAT) may guide coaches in …
Hierarchical clustering of the pre-exam anxiety levels in physically inactive and active adolescent students from 56 countries
Introduction The relationship between physical activity and anxiety among students has been extensively studied, with research highlighting the protective effects of physical activity on mental well-being. Methods This article synthesizes existing literature on the topic and presents a novel analysis of pre-exam anxiety rates among physically inactive high school students from 56 countries. Using data from the Programme for International Student …
Effects of a 10-week detraining period on gross motor skills in young tricking practitioners
Tricking has emerged as a martial arts sport that combines acrobatics, gymnastics, kicks and jumps to create multiple visually striking movements. Actually, the effects of a period of detraining in young tricking practitioners still unclear. The main objective of this study was to verify the effect of a 10-week detraining period on different motor skills in young tricking practitioners. A group of 17 children (age: 10.18 ± 0.98 years) tricking pr…
Tracking the Prevalence of Obesity in Portuguese School-Aged Children
Background: Childhood obesity presents a significant public health concern globally, with implications for cardiovascular health and metabolic syndrome. In Portugal, approximately 31.6% of children are affected, highlighting the urgency for intervention strategies. This study aimed to assess the prevalence of overweight and obesity in Portuguese school-aged children, with a focus on sex and age differences. Methods: Anthropometric measurements we…
Comparison of force variables and dynamic strength index between age groups in elite young Brazilian football goalkeepers
Introduction The application of muscle force is a determinant of football success as it is inherent to the motor control and sport. The aims of this study are: (1) to describe force variables Isometric Maximal Force (IMF), Concentric Peak Force (CPPF), and Dynamic Strength Index (DSI) in football goalkeepers from different age groups; (2) to compare these variables’ behavior between those groups. Methods The sample was formed by 19 youth players …
Associations between Coronavirus and Immune Response, Cardiorespiratory Fitness Rehabilitation and Physical Activity
COVID-19 has serious effects on cardiorespiratory capacity. In this sense, physical activity has been identified as beneficial in the treatment of cardiorespiratory diseases due to its anti-inflammatory and immunosuppressive benefits. To date, no study has been found on cardiorespiratory capacity and rehabilitation in patients cured after COVID-19. Thus, this brief report aims to relate the benefits of physical activity to cardiorespiratory funct…
The Association between Training Frequency, Symptoms of Overtraining and Injuries in Young Men Soccer Players
Overtraining is a prevalent issue among young men soccer players, particularly those who are driven to enhance their skills. While an intense training volume and effort might contribute to athletic growth, it can also have negative implications, including injury. The current study aimed at examining the association between training frequency, symptoms of overtraining and injuries in young men soccer players. A path analysis approach was used to e…
Obesity Status and Physical Fitness Levels in Male and Female Portuguese Adolescents
Obesity and decreasing fitness levels among the youth are growing concerns in Portugal, similar to other developed countries, with implications for health and psychomotor development. Understanding the influence of health determinants such as sex and age are crucial for developing effective public health strategies. This study aimed to analyze the association between sex and chronological age with obesity status and physical fitness in Portuguese…
Effects of applying a multivariate training program on physical fitness and tactical performance in a team sport taught during physical education classes
Introduction A multivariate training program could be a pedagogical choice to improve physical and tactical performance in a team sport taught during physical education classes at different levels of education. Thus, the aim of this study was to verify the effects of applying a multivariate training program on physical fitness and tactical performance during the teaching of a basketball didactic unit in basic and secondary education. Methods Seve…
Weekly Training Load across a Standard Microcycle in a Sub-Elite Youth Football Academy
Compensatory training sessions have been highlighted as useful strategies to solve the differential weekly training load between the players' starting status. However, the influence of the players' starting status is still understudied in sub-elite youth football. Thus, the aim of this study was to compare the weekly training load on a standard microcycle in starters and non-starters of a sub-elite youth football academy. The weekly training load…
The Influence of Abdominal Adiposity and Physical Fitness on Obesity Status of Portuguese Adolescents
The aim of this study was to verify the relationship between abdominal adiposity and physical fitness in the obesity status of Portuguese adolescents. BMI, abdominal adiposity, and physical fitness tests from the FITescola ® were evaluated in a total of 654 Portuguese adolescents, aged 10-19 years old-male: n = 334 (51%), female: n = 320 (49%). For the final model, BMI was positively related with age ( β = 0.25), abdominal adiposity ( β = 0.313),…
Flexibility of Ballet Dancers in Covid-19 Pandemic
The aim of this study was to verify how dancers' flexibility work has developed during confinement through four assessment moments: before, during (two times), and after the lockdown period. The sample was formed by 18 dancers from the Porto Dance Conservatory (Portugal) with an average age of 11.4 ± 1.4 years and 1.4 ± 0.7 years of experience. To assess the passive and active flexibility level, we used seven of the International Gymnastics Feder…
Ultimate Full Contact
Fight analysis produces relevant technical-tactical information. However, this knowledge is limited in hybrid full-contact combat sports. Therefore, this study aimed to characterize the results of the fights' outcomes through the winners at the World Ultimate Full Contact (WUFC) Championships between 2008 and 2017. Methods: 170 combats between senior male fighters (master class) from 38 countries were observed; all fight outcome methods, their oc…
Comparison between Continuous and Fractionated Game Format on Internal and External Load in Small-Sided Games in Soccer
This study aimed to identify the effects of continuous and fractionated game formats on internal and external load in small-sided games in soccer. Twenty male professional soccer players participated in the study performing the same exercise (5 vs. 5 players) continuously (1 × 24 min) and in a repeated/fractioned manner (2 × 12 min, 4 × 6 min, and 6 × 4 min). A comparison between playing conditions was assessed by means of standardized mean diffe…
Effects of Knowing the Task’s Duration on Soccer Players’ Positioning and Pacing Behaviour during Small-Sided Games
The study aimed to identify how the manipulation of knowledge regarding a training task duration constrains the pacing and tactical behaviour of soccer players when playing small-sided games (SSG). Twenty professional and experienced soccer players participated in a cross-sectional field study using three conditions: not informed on the duration of the SSG, which ended after 20 min (Unknown Condition); briefed about playing the SSG for 10 min, bu…
A literatura de cárcere no contemporâneo
A literatura de cárcere retrata o espaço da prisão. Sempre esteve ligada a grandes nomes, como Graciliano Ramos (Memórias do cárcere), Antonio Gramsci (Cartas e Cadernos do cárcere), Fiódor Dostoiévski (Recordações da casa dos mortos), entre outros. Suas prisões foram de cunho eminentemente político, no sentido de uma discordância com o sistema operante que seus governos adotavam em suas respectivas épocas. Graciliano conflitava com o Governo Var…
O centenário do Belo Monte e algumas reflexões sobre ficção e história
No prominent works on this page.
O centenário do Belo Monte e algumas reflexões sobre ficção e história
A literatura de cárcere no contemporâneo
A literatura de cárcere retrata o espaço da prisão. Sempre esteve ligada a grandes nomes, como Graciliano Ramos (Memórias do cárcere), Antonio Gramsci (Cartas e Cadernos do cárcere), Fiódor Dostoiévski (Recordações da casa dos mortos), entre outros. Suas prisões foram de cunho eminentemente político, no sentido de uma discordância com o sistema operante que seus governos adotavam em suas respectivas épocas. Graciliano conflitava com o Governo Var…
Ultimate Full Contact
Fight analysis produces relevant technical-tactical information. However, this knowledge is limited in hybrid full-contact combat sports. Therefore, this study aimed to characterize the results of the fights' outcomes through the winners at the World Ultimate Full Contact (WUFC) Championships between 2008 and 2017. Methods: 170 combats between senior male fighters (master class) from 38 countries were observed; all fight outcome methods, their oc…
Comparison between Continuous and Fractionated Game Format on Internal and External Load in Small-Sided Games in Soccer
This study aimed to identify the effects of continuous and fractionated game formats on internal and external load in small-sided games in soccer. Twenty male professional soccer players participated in the study performing the same exercise (5 vs. 5 players) continuously (1 × 24 min) and in a repeated/fractioned manner (2 × 12 min, 4 × 6 min, and 6 × 4 min). A comparison between playing conditions was assessed by means of standardized mean diffe…
Effects of Knowing the Task’s Duration on Soccer Players’ Positioning and Pacing Behaviour during Small-Sided Games
The study aimed to identify how the manipulation of knowledge regarding a training task duration constrains the pacing and tactical behaviour of soccer players when playing small-sided games (SSG). Twenty professional and experienced soccer players participated in a cross-sectional field study using three conditions: not informed on the duration of the SSG, which ended after 20 min (Unknown Condition); briefed about playing the SSG for 10 min, bu…
Weekly Training Load across a Standard Microcycle in a Sub-Elite Youth Football Academy
Compensatory training sessions have been highlighted as useful strategies to solve the differential weekly training load between the players' starting status. However, the influence of the players' starting status is still understudied in sub-elite youth football. Thus, the aim of this study was to compare the weekly training load on a standard microcycle in starters and non-starters of a sub-elite youth football academy. The weekly training load…
The Influence of Abdominal Adiposity and Physical Fitness on Obesity Status of Portuguese Adolescents
The aim of this study was to verify the relationship between abdominal adiposity and physical fitness in the obesity status of Portuguese adolescents. BMI, abdominal adiposity, and physical fitness tests from the FITescola ® were evaluated in a total of 654 Portuguese adolescents, aged 10-19 years old-male: n = 334 (51%), female: n = 320 (49%). For the final model, BMI was positively related with age ( β = 0.25), abdominal adiposity ( β = 0.313),…
Flexibility of Ballet Dancers in Covid-19 Pandemic
The aim of this study was to verify how dancers' flexibility work has developed during confinement through four assessment moments: before, during (two times), and after the lockdown period. The sample was formed by 18 dancers from the Porto Dance Conservatory (Portugal) with an average age of 11.4 ± 1.4 years and 1.4 ± 0.7 years of experience. To assess the passive and active flexibility level, we used seven of the International Gymnastics Feder…
Associations between Coronavirus and Immune Response, Cardiorespiratory Fitness Rehabilitation and Physical Activity
COVID-19 has serious effects on cardiorespiratory capacity. In this sense, physical activity has been identified as beneficial in the treatment of cardiorespiratory diseases due to its anti-inflammatory and immunosuppressive benefits. To date, no study has been found on cardiorespiratory capacity and rehabilitation in patients cured after COVID-19. Thus, this brief report aims to relate the benefits of physical activity to cardiorespiratory funct…
The Association between Training Frequency, Symptoms of Overtraining and Injuries in Young Men Soccer Players
Overtraining is a prevalent issue among young men soccer players, particularly those who are driven to enhance their skills. While an intense training volume and effort might contribute to athletic growth, it can also have negative implications, including injury. The current study aimed at examining the association between training frequency, symptoms of overtraining and injuries in young men soccer players. A path analysis approach was used to e…
Obesity Status and Physical Fitness Levels in Male and Female Portuguese Adolescents
Obesity and decreasing fitness levels among the youth are growing concerns in Portugal, similar to other developed countries, with implications for health and psychomotor development. Understanding the influence of health determinants such as sex and age are crucial for developing effective public health strategies. This study aimed to analyze the association between sex and chronological age with obesity status and physical fitness in Portuguese…
Effects of applying a multivariate training program on physical fitness and tactical performance in a team sport taught during physical education classes
Introduction A multivariate training program could be a pedagogical choice to improve physical and tactical performance in a team sport taught during physical education classes at different levels of education. Thus, the aim of this study was to verify the effects of applying a multivariate training program on physical fitness and tactical performance during the teaching of a basketball didactic unit in basic and secondary education. Methods Seve…
Effects of a 10-week detraining period on gross motor skills in young tricking practitioners
Tricking has emerged as a martial arts sport that combines acrobatics, gymnastics, kicks and jumps to create multiple visually striking movements. Actually, the effects of a period of detraining in young tricking practitioners still unclear. The main objective of this study was to verify the effect of a 10-week detraining period on different motor skills in young tricking practitioners. A group of 17 children (age: 10.18 ± 0.98 years) tricking pr…
Tracking the Prevalence of Obesity in Portuguese School-Aged Children
Background: Childhood obesity presents a significant public health concern globally, with implications for cardiovascular health and metabolic syndrome. In Portugal, approximately 31.6% of children are affected, highlighting the urgency for intervention strategies. This study aimed to assess the prevalence of overweight and obesity in Portuguese school-aged children, with a focus on sex and age differences. Methods: Anthropometric measurements we…
Comparison of force variables and dynamic strength index between age groups in elite young Brazilian football goalkeepers
Introduction The application of muscle force is a determinant of football success as it is inherent to the motor control and sport. The aims of this study are: (1) to describe force variables Isometric Maximal Force (IMF), Concentric Peak Force (CPPF), and Dynamic Strength Index (DSI) in football goalkeepers from different age groups; (2) to compare these variables’ behavior between those groups. Methods The sample was formed by 19 youth players …
Hierarchical clustering of the pre-exam anxiety levels in physically inactive and active adolescent students from 56 countries
Introduction The relationship between physical activity and anxiety among students has been extensively studied, with research highlighting the protective effects of physical activity on mental well-being. Methods This article synthesizes existing literature on the topic and presents a novel analysis of pre-exam anxiety rates among physically inactive high school students from 56 countries. Using data from the Programme for International Student …
Effect of 12 weeks differential learning vs. classical learning approaches on motor skills related to shot put in healthy young adult
Purpose The objective of this study was to compare the effect of 12-weeks of differential learning intervention vs. classical learning in the shot-put for healthy and physically active students. Methods In this study, 114 sports science students (64 males; 50 females; age 21.20 ± 2.15 years; body mass: 67.42 ± 12.30 kg; body height: 1.73 ± 0.09 m; BMI: 22.61 ± 1.20 kg.m-1) participated in this study. A total of 114 students completed the study. S…
The defensive playing style was associated with match-running performance and team success in the Fifa Women's 2023 World Cup
Introduction Currently, there are no data in the women's soccer literature about playing style without ball possession and its impact on match-running performance or competitive success. The main objective of this study is to verify whether there was a relationship between match-running performance, team success, and playing style without ball possession in the FIFA Women's 2023 World Cup. Methods Twenty-one variables related to tactical and tech…
Intra and inter variation in training load, recovery state and technical–tactical performance across a standard microcycle in Sub-elite youth football players
These findings demonstrate that the microcycle followed a structured pattern, with matches concentrating objective intensity and training sessions eliciting greater perceived effort. Practically, training for U11 should emphasize motor efficiency and load regulation, while U13 programs should target high-intensity capacity and tactical coordination. Over time, integrating multidimensional monitoring (GPS, sRPE, TQR, FUT-SAT) may guide coaches in …
Medicine (13 works) · Psychology (13 works) · Sports Performance and Training (10 works) · Physical therapy (9 works) · Sports injuries and prevention (9 works) · Computer Science (5 works) · Internal Medicine (5 works) · Sport Psychology and Performance (5 works) · Sports Dynamics and Biomechanics (5 works) · Demography (4 works)