Search results for "030229 sport sciences"
showing 10 items of 1554 documents
Maturation-Related Differences in Neuromuscular Fatigue After a Short-Term Maximal Run
2017
AbstractPurpose. This study investigated maturation-related differences in neuromuscular fatigue after a short-term maximal run. Methods. Eight male children, eight adolescents, and eight adults performed a maximal ca. 50-s run (300/350/400 m, respectively). Mechanisms of neuromuscular fatigue were assessed through isometric plantar flexor tests, electrical stimulation of the posterior tibial nerve, soleus electromyography, and blood tests. Results. All the groups showed a decrease in the running speed (children: -12.2 ± 6.5%; adolescents: -9.8 ± 5.1%; adults: -12.2 ± 3.1%), but only adults revealed a decline in the maximal isometric plantar flexor torque (-16.1 ± 13.0%). On the other hand,…
Students’ physical activity intensity and sedentary behaviour by physical self-concept profiles: A latent profile analysis. [Intensidad de la activid…
2020
Abstract Aims of this study were to identify student clusters in physical appearance, sport competence, global physical self-concept and self-esteem, and to examine whether different physical self-concept groups differ in their moderate-to-vigorous physical activity (MVPA) and sedentary behaviour. Participants of the study were 211 boys and 183 girls aged 13-16 years. MVPA and sedentary behaviour were monitored by GT3X accelerometers during seven days. Participants’ physical self-concept was measured by the short Physical Self-Description Questionnaire. Latent profile analyses revealed a four-cluster solution: 1) “low sport competence, moderate global physical self-concept and self-esteem, …
Intended or Unintended Doping? A Review of the Presence of Doping Substances in Dietary Supplements Used in Sports
2017
Introduction: The use of dietary supplements is increasing among athletes, year after year. Related to the high rates of use, unintentional doping occurs. Unintentional doping refers to positive anti-doping tests due to the use of any supplement containing unlisted substances banned by anti-doping regulations and organizations, such as the World Anti-Doping Agency (WADA). The objective of this review is to summarize the presence of unlabeled doping substances in dietary supplements that are used in sports. Methodology: A review of substances/metabolites/markers banned by WADA in ergonutritional supplements was completed using PubMed. The inclusion criteria were studies published up until Se…
Wellness Technology Use in Everyday Life: A Diary Study
2017
Digital wellness technologies and their use have become exceedingly popular. More and more people are using them in their everyday lives. Respectively, the need to understand their users and usage has increased. This study aims to deepen the understanding of how people use and perceive wellness technologies in their everyday lives. Empirically, the study is based on diaries collected from 18 participants over a six-week period, which are analysed using thematic analysis. The results show that the use of wellness technologies can positively influence wellness motivation. Further, they can help people to learn more about their own wellness related behaviour and its effects (learning-effect). …
Social Competence and Moderate to Vigorous Physical Activity of School-Aged Children through a Creative Physical Education Intervention
2019
Traditional school physical education focuses on physical skills or strategies with an expectation that learning these skills lead to healthier lifestyle outside physical education classes, while children’s overall moderate to vigorous physical activity (MVPA) is widely decreasing. Creative Physical Education (CPE) understands physical education more holistically, as the central pedagogical element of movement is social learning. The current study examined the development of social competence in school physical education (PE) and total moderate to vigorous physical activity (MVPA) participation through a CPE-based intervention. Participants were 363 (177 intervention, 186 control) children …
Peak oxygen uptake cut-points to identify children at increased cardiometabolic risk - The PANIC Study.
2019
We aimed to develop cut -points for directly measured peak oxygen uptake (VO2peak ) to identify boys and girls at increased cardiometabolic risk using different scaling methods to control for body size and composition. Altogether 352 children (186 boys, 166 girls) aged 9 – 11 years were included in the analyses. We measured VO2peak directly during a maximal cycle ergometer exercise test and lean body mass (LM) by bioelectrical impedance. We computed a sex - and age -specific cardiometabolic risk score (CRS) by summing important cardiometabolic risk factors and defined increased cardiometabolic risk as >1 standard deviation above the mean of CRS. Receiver operating characteristics curves wer…
Me, osteogenesis imperfecta, and my classmates in physical education lessons: a case study of embodied pedagogy in action
2017
Pupils with disabilities have been found to experience a narrower physical education curriculum and participate less frequently than pupils without disabilities. A lack of knowledge, skills, relevant experiences and confidence amongst physical education (PE) teachers has been said to contribute to these differential educational experiences. This article adds to the paucity of research that analyses the PE experiences of pupils with disabilities while, at the same time, evaluating embodied pedagogy as a tool for better preparing PE teachers for their role as inclusive educators. Specifically, the article aims to: (1) explore the PE experiences of a university student named Violeta who lives …
The temporal relations of adolescents' basic need satisfaction in physical education and global self-worth
2020
This study investigated the temporal relations of adolescents’ basic need satisfaction in physical education (PE) and global self-worth in a sample of 3,398 lower and upper secondary school students (49% boys, 51% girls, average age T1 = 15.00, SD = 1.79). Four models and competing hypotheses were tested, and the model with bidirectional paths specified showed the best fit to the data. The bidirectional effect estimates suggest not only that basic need satisfaction in PE predicts global self-worth development but also that adolescents’ perceptions of global self-worth predict the degree to which they experience basic need satisfaction in PE. Findings could suggest that students with low glo…
Relative age and perceptions of soccer specific skills among elite youth players in Norway
2019
One common feature among the selected players in talent development programs are the well-known relative age effect (RAE), characterized by a skewed birth distribution among selected players with an over-representation of players born early in the selection year. The aim of the present study was to examine potential differences in soccer-specific skills between players selected for national talent program born in the first half of the year compared to the players born in the second half of the year. A total of 753 elite male U 14 (N = 363) and U 13 players (N = 390) from 16 of 18 soccer regions in Norway participated. The results showed players born early in the selection year considered th…
Sport participation and vigilance in children: Influence of different sport expertise
2018
PURPOSE: The present study aimed to investigate the relationship between different types of sport expertise (externally-paced vs. self-paced sports) and vigilance performance in children by evaluating the cardiovascular fitness level of the participants. METHODS: Three groups of children (11.0 ± 0.2 years) differentiated in terms of their regular sport participation (football players, n = 20; track and field athletes, n = 20; non-athletic controls, n = 20) took part in the study. In one session, participants performed the Leger Multi-stage fitness test to estimate their aerobic fitness level. In another session, participants completed the Psychomotor Vigilance Task (PVT) to evaluate their v…