Search results for "Sport Science"
showing 10 items of 1573 documents
Influence of Oral Contraceptive Use on Adaptations to Resistance Training
2019
Introduction: The majority of young women use oral contraceptives (OCs). Use of OCs has been associated with lower myofibrillar protein and tendon collagen synthesis rates, but it is unknown whether OCs will limit the adaptive response of myotendinous tissue to resistance training. Design and Methods: Fourteen healthy untrained young regular OC users (24 +/- 1 years, fat% 32 +/- 1, 35 +/- 2 ml.min(-1).kg(-1)) and 14 NOC users (non-OC, controls) (24 +/- 1 years, fat% 32 +/- 2, 34 +/- 2 ml.min(-1).kg(-1)) performed a 10-week supervised lower extremity progressive resistance training program. Before and after the intervention biopsies from the vastus lateralis muscle and the patellar tendon we…
Sagittal Plane Hip, Knee, and Ankle Biomechanics and the Risk of Anterior Cruciate Ligament Injury: A Prospective Study
2018
Background: Stiff landings with less knee flexion and high vertical ground-reaction forces have been shown to be associated with an increased risk of anterior cruciate ligament (ACL) injury. The literature on the association between other sagittal plane measures and the risk of ACL injuries with a prospective study design is lacking. Purpose: To investigate the relationship between selected sagittal plane hip, knee, and ankle biomechanics and the risk of ACL injury in young female team-sport athletes. Study Design: Case-control study; Level of evidence, 3. Methods: A total of 171 female basketball and floorball athletes (age range, 12-21 years) participated in a vertical drop jump test usin…
Evaluación y clasificación de las revistas científicotécnicas españolas de Ciencias de la Actividad Física y el Deporte
2008
En este artículo se evalúan y clasifican las revistas españolas de Ciencias de la Actividad Física y el Deporte (CCAFD), atendiendo a su calidad global. Para ello se aplica un modelo de evaluación, validado con anterioridad, que combina 23 indicadores relativos a diferentes características de las revistas (formales, de contenido científico y difusión). De esta manera pueden clasificarse las publicaciones periódicas en cuatro categorías de calidad: ‘muy alta’, ‘alta’, ‘media’ y ‘baja’. Los resultados indican que ninguna de las 28 publicaciones existentes alcanza la categoría superior, el 25% obtiene una calidad ‘alta’, el 50% una calidad ‘media’ y otro 25% una calidad ‘baja’. Aunque se obser…
Assessment and classification of Spanish scientific-technical journals of Physical Activity and Sport Sciences
2008
This paper evaluates and classifies Spanish Physical Activity and Sports Science journals according to their overall quality. A previously validated assessment model combining 23 indicators of style, scientific content and diffusion characteristics was used for this purpose. This model classifies journals into four quality categories: ‘very high’, ‘high’, ‘medium’ and ‘low’. None of the 28 journals studied fell into the top category, 25% fell into the ‘high’ category, 50% into the ‘medium’ category, and the remaining 25% into the ‘low’ category. A general improvement was observed compared to previous assessments of these journals, although deficient standardization and a non frequent use of…
‘School, family and then hockey!’ Coaches’ views on dual career in ice hockey
2017
Despite the extensive research into coaches’ roles in supporting athletic development and motivation for sport, few studies have examined coaches’ attitudes and practices towards athletes’ dual careers. The present study extends European research into athletes’ dual careers by examining Finnish ice hockey coaches’ attitudes and practices surrounding players’ education. Ten male coaches aged 27–52 participated in semi-structured interviews. The data were analysed with an existential-narrative theoretical framework and with thematic and structural narrative analysis. Three composite vignettes were created entitled ‘supporting athletic development and players in reaching their own goals’, ‘enj…
Hypovitaminosis D in Young Basketball Players: Association with Jumping and Hopping Performance Considering Gender
2021
This study aimed to verify whether a group of young well-trained basketball players presented deficiencies in vitamin D concentration, and to analyze whether there was an association between vitamin D concentration and jumping and hopping performance. Gender differences were considered. Twenty-seven players from an international high-level basketball club (14 female, 16.00 ± 0.55 years
Children and Parental Barriers to Active Commuting to School: A Comparison Study
2021
The main objectives of this study were: to compare the barriers to active commuting to and from school (ACS) between children and their parents separately for children and adolescents; and to analyze the association between ACS and the children’s and parents’ barriers. A total of 401 child–parent pairs, from Granada, Jaén, Toledo and Valencia, self-reported, separately, their mode of commuting to school and work, respectively, and the children’s barriers to ACS. T-tests and chi-square tests were used to analyze the differences by age for continuous and categorical variables, respectively. Binary logistic regressions were performed to study the association between ACS barriers of children an…
Gender-Typed Sport Practice, Physical Self-Perceptions, and Performance-Related Emotions in Adolescent Girls
2020
Youth sport experience provides opportunities for physical, personal, and social development in youngsters. Sport is a social system in which socially constructed gender differences and stereotypes are incorporated, and specific sport activities are often perceived as gender characterized. The objective of this study was to examine the relationship between some salient physical and emotional self-perceptions and the type of sport practiced. A sample of 261 female athletes, aged 14–21 years (Mage = 15.59, SD = 2.00), practicing different sports, categorized as feminine (e.g., artistic and rhythmic gymnastics), masculine (e.g., soccer and rugby), or neutral (e.g., track and field and tennis),…
Physical Fitness in Young Men between 1975 and 2015 with a Focus on the Years 2005–2015
2018
Purpose: The purpose of the present study was to investigate changes in physical fitness and anthropometry of young men entering the military service in Finland during the years 1975–2015. Methods: The study included the fitness test results of 627,142 healthy young male conscripts (age 19.1 T 0.4 yr). Data included results of aerobic capacity, muscle fitness tests, and anthropometric characteristics. Results: The results show that the increase in mean body mass of young men has slowed down during the last 10 yr. However, the total increase in body mass was 6.8 kg (8.8%, P e 0.001) between 1993 and 2015. The mean distance achieved in the 12-min running test decreased by 337 m (12.2%, P e 0.…
Adherence to an Injury Prevention Warm-Up Program in Children’s Soccer : A Secondary Analysis of a Randomized Controlled Trial
2021
This study examined the impact of high adherence to a neuromuscular training (NMT) warm-up on the risk of lower extremity (LE) injuries in children’s soccer. Twenty U11–U14 youth clubs (n = 92 teams, 1409 players) were randomized into intervention (n = 44 teams) and control (n = 48 teams) groups. The intervention group was advised to perform an NMT warm-up 2 to 3 times a week for 20 weeks. Team adherence, injuries, and exposure were registered throughout the follow-up. Primary outcomes were the incidence of soccer-related acute LE injuries and the prevalence of overuse LE injuries. Intervention teams conducted mean 1.7 (SD 1.0) NMT warm-ups weekly through follow-up. The seasonal trend for a…