This paper reports the psychometric characteristics of the Portuguese version of the Adult Developmental Coordination Disorders/Dyspraxia Checklist (ADC). An independent translation of the questionnaire from the original version into European Portuguese was conducted. The sample consisted of 346 Portuguese adults, aged 18 to 65 years. Analyses were performed using R software (version 4.1.0). Exploratory factor ...
This study investigated the relationship between reaction time (RT) and physical fitness (PF) in soccer-playing children, focusing on core strength, agility, flexibility and power. A sample of 89 boys (8.7 ± 2.2 years) participated in this investigation were conveniently chosen in a Portuguese soccer team. All participants were players in a non-competitive level. Data on PF components were collected and analyse...
Motor competence is an important component of children's physical development, influencing their participation in many physical activities and long-term health outcomes. Environmental affordances also influence motor behavior levels, especially in young children, but limited investigations still explore their specific impact on school-aged children in underrepresented regions. This cross-sectional investigation...
The knee is a complex joint essential for locomotion, providing stability that is crucial for avoiding biomechanical deviations such as dynamic knee valgus (DKV), a contributing injury risk factor. This study aimed to assess the influence of body mass index (BMI), age, sex, anthropometric variables, visual feedback, and drop height on the occurrence of DKV. Forty healthy adults aged between 18 and 45 years, wit...
Introduction: Motor skill acquisition is influenced by motivational and attentional factors. Among these, the focus of attention—internal or external—plays a critical role in performance and learning. This study examined the effects of different attentional foci on motor skill learning in adolescents. Methods: Seventy-seven adolescents (M = 16.5 years, SD = 1.4) of both sexes performed a Response Time task. Aft...
Introduction: The present investigation carried out a cross-cultural adaptation of the category-ratio Borg Scale (Borg CR - 10 scale) into Portuguese. It assessed its content validity and reliability during adolescents' progressive aerobic capacity test in school. Methods: In the first phase, a cross-cultural adaptation and content validity analysis of the Borg CR-10 scale were performed, followed by a pilot st...
Background: The Relative Age Effect (RAE) refers to the advantage in physical and psychological development that children born earlier in the year often experience, which can influence their participation in sports. Aim: Analyze the influence of RAE on motor competence (MC) in school- aged children, focusing on differences across birth quartiles and types of sports participation. Methods: A cross-sectional stud...
Background: Firefighters and police officers face high-stress situations requiring intense phys- ical exertion, posing cardiovascular challenges. This study evaluated cardiovascular recovery in these professionals under simulated emergency and maximal exertion conditions. Methods: Thirty-five firefighters and sixteen police officers completed a simulated high-inten- sity task and a cardiopulmonary exercise test...
Resistance training adaptations depend not only on external load but also on the accurate regulation of effort, particularly the ability to estimate proximity to muscular concentric failure. The Repetitions in Reserve (RIR) scale has emerged as a practical tool to quantify relative intensity, but evidence suggests that several factors may influence the ability for individuals to accurately report RIR. This stud...
The purpose of this study was two-fold: (i) to analyze the relationship between motor competence (i.e., a person’s ability to be proficient in different gross motor skills) and the rating of perceived exertion (RPE), which represents the physiological and psychological responses during training, in young adults, and (ii) to compare RPE between participants with high and low motor competence. Forty-eight male yo...