Article
Sport Sciences
Anton Kalen, Erik Lundkvist, Andreas Ivarsson, Ezequiel Rey, Alexandra Perez-Ferreiros
Summary: The study aimed to analyze re-selection patterns in European youth basketball national teams and found that the chance of re-selection is influenced by initial selection age, relative age effect, and the country's long-term performance. Results show that around 75% of male and 80% of female players participating in a championship were re-selected the following year, with different relationships between men and women. The re-selection process for players in European youth national basketball teams is complex and influenced by several different factors.
JOURNAL OF SPORTS SCIENCES
(2021)
Article
Sport Sciences
Jens G. Voet, Robert P. Lamberts, Jos J. de Koning, Teun van Erp
Summary: This study investigated the presence of the relative age effect (RAE) in (semi-)professional cycling, especially in the selection of cyclists for Continental (CT) development teams. The findings revealed that there is a RAE among cyclists who did not reach professional level, with a selection bias towards relatively older cyclists. However, among cyclists who reached professional level, the RAE was not observed, indicating a diminished effect at the professional level.
JOURNAL OF SPORTS SCIENCES
(2022)
Article
Sport Sciences
Kyle J. M. Bennett, Andrew R. Novak, Job Fransen, Rob Duffield
Summary: This study examined the association between talent pool size and relative age effects in Football Australia's talent pathway, as well as comparing the relative age effects between male and female players. The participants were 54,207 youth football players. The findings showed that talent pool size was positively associated with selecting players born in the first half of the year, and relative age effects were more prominent in males.
JOURNAL OF SPORTS SCIENCES
(2023)
Article
Sport Sciences
Quentin De Larochelambert, Audrey Difernand, Juliana Antero, Adrien Sedeaud, Jean-Francois Toussaint, Louis Pierre Yves, Nicolas Coulmy
Summary: This study aims to identify and correct the potential bias of relative age effect (RAE) in French alpine skiers. It was found that individuals born at the beginning of the year are over-represented in elite young selections. By adjusting individual performance based on birth month and the relationship with performance, the effect of RAE can be eliminated. This method provides coaches with a more objective assessment of performance and reduces bias in selection.
JOURNAL OF SPORTS SCIENCES
(2022)
Article
Physiology
Audrey Difernand, Quentin De Larochelambert, Sebastien Homo, Florian Rousseau, Juliana Antero, Jean-Francois Toussaint, Adrien Sedeaud
Summary: This study investigated the relative age effect among French athletes in different track-and-field events and proposed a corrective adjustment method to highlight the true potential of athletes considering their relative age. The results showed that relative age effect exists in all types of events and is larger at higher levels of competition. The validated rebalancing method allows for compensation of the biases induced by the relative age effect. The study is rated 8 out of 10 in terms of its importance.
FRONTIERS IN PHYSIOLOGY
(2023)
Article
Psychology, Multidisciplinary
Alfonso de la Rubia, Alberto Lorenzo, Christian Thue Bjorndal, Adam Leigh Kelly, Abraham Garcia-Aliaga, Jorge Lorenzo-Calvo
Summary: The study found the presence of relative age effects (RAE) among Spanish handball players, particularly evident in male formative and female senior categories. Relatively older players in male teams had more playing time, but this advantage diminished over time. Relatively younger female players performed better as the level of competition increased.
FRONTIERS IN PSYCHOLOGY
(2021)
Article
Pediatrics
Javier Garcia-Rubio, Andres Garcia-Vallejo, Maria de los Angeles Arenas-Pareja, Pablo Lopez-Sierra, Sergio J. Ibanez
Summary: This study examines the Relative Age Effect (RAE) in Spanish youth national soccer teams and the predictive value of being selected for national youth teams in becoming a professional player. The results show that RAE is present in the youth national teams and becomes more reliable as the players approach adulthood. Therefore, the selection of players for talent programs should be delayed to prevent younger players from dropping out and to ensure long-term development.
Article
Psychology, Multidisciplinary
James H. Dugdale, Allistair P. McRobert, Viswanath B. Unnithan
Summary: The study found that there is a significant relative age effect among male youth soccer players in Scottish development and performance levels, but not at the amateur level. Additionally, the relative age effect was observed in players aged U12 to U17.
FRONTIERS IN PSYCHOLOGY
(2021)
Article
Sport Sciences
Gabriele Morganti, Adam L. Kelly, Gennaro Apollaro, Laura Pantanella, Mario Esposito, Alberto Grossi, Bruno Ruscello
Summary: Relative Age Effects (RAEs) are commonly observed in youth soccer and can have an impact on players' future career outcomes. This study further validates RAEs by analyzing the birth quarter distribution of Italian players in youth national teams, and investigates how RAEs influence the transition from youth squads to senior national team. The results show that players born in the first quarter (BQ1) are overrepresented at senior level, while players born in the fourth quarter (BQ4) have a higher likelihood of successfully transitioning to senior level.
SCIENCE AND MEDICINE IN FOOTBALL
(2022)
Article
Multidisciplinary Sciences
Ramazan Tascioglu, Ozan Atalag, Yilmaz Yuksel, Serdar Kocaeksi, Gulsun Guven, Zeki Akyildiz, Hadi Nobari
Summary: The aim of this study was to assess the impact of the Relative Age Effect (RAE) on elite young male basketball players. It analyzed the difference between birth quarters (BQ) in terms of minutes played and efficiency ratings as performance parameters, as well as the relationship between team efficiency, team success, and RAE using a new approach. The research involved 678 players from 53 teams in six tournaments from 2014 to 2019. The findings showed a higher number of players born in the first BQ and a relationship between team RAE score, tournament ranking, and team efficiency score. There were no significant differences in performance measures between BQs.
SCIENTIFIC REPORTS
(2023)
Article
Psychology, Multidisciplinary
Martin Goetze, Matthias W. Hoppe
Summary: The study investigated the relative age effect (RAE) in elite German adult soccer, finding a skewed birthdate distribution regardless of gender, leading to a potential loss of valuable elite players during the youth phase and limiting the pool of talented players at the adult level.
FRONTIERS IN PSYCHOLOGY
(2021)
Article
Psychology, Multidisciplinary
Dilson B. Ribeiro Junior, Francisco Z. Werneck, Helder Z. Oliveira, Patricia S. Panza, Sergio J. Ibanez, Jeferson M. Vianna
Summary: This study explores the factors influencing the career progression of youth Brazilian elite basketball players, finding that taller and younger players who were not selected early into national teams, did not specialize by playing position, participated in U22 national championships, migrated to the southeast region, and remained in the formation process over time have a greater chance of reaching NBB. The research also shows that early-maturing athletes have a higher chance of achieving better performances, while the relative age effect mainly influences lower-level categories, with minimal impact on the career progression of NBB players.
FRONTIERS IN PSYCHOLOGY
(2021)
Article
Sport Sciences
Paolo Riccardo Brustio, Gennaro Boccia
Summary: Corrective adjustment procedures can remove or at least reduce the relative age effect in world-class sprinters. Moderate to large RAE was observed in Top50 and Top100 at 16 years, but a lower RAE was observed at 17 years.
JOURNAL OF SPORTS SCIENCES
(2021)
Article
Hospitality, Leisure, Sport & Tourism
Brady S. DeCouto, Rhiannon L. Cowan, Joseph L. Thomas, Bradley Fawver, Lisa Steidl-Mueller, A. Mark Williams
Summary: The study compared performance and sport engagement patterns between earlier-born and later-born alpine ski racers in Austria and the United States. Results showed that later-born athletes in Austria need more practice to bridge the skill/performance gap with their older peers, while practice time may not be as crucial for relatively younger athletes in the US due to less strict talent filtration systems. Coaches can help mitigate the RAE by focusing more on developing relatively younger athletes who may be overshadowed by older, higher-performing athletes during practice.
PSYCHOLOGY OF SPORT AND EXERCISE
(2021)
Article
Sport Sciences
Paolo Riccardo Brustio, Mattia Stival, Gennaro Boccia
Summary: The relative age effect (RAE) is a selection bias resulting from the interaction between the selected dates and birthdates. This study aimed to quantify the RAE's magnitude and test if birthdate affects the junior-to-senior transition rate in international track and field. The data showed that relatively younger athletes have a higher chance of maintaining top level in the senior category, and the RAE magnitude increases with performance level and is higher in males than females.
JOURNAL OF SPORTS SCIENCES
(2023)
Article
Hospitality, Leisure, Sport & Tourism
Alexandra F. Bell, Camilla J. Knight, Victoria E. Lovett, Catherine Shearer
Summary: This study aimed to investigate the knowledge, perceptions, and understanding of sport psychology among elite youth athletes. Data was collected through focus groups and analyzed using thematic analysis. The findings revealed diverse perceptions of sport psychology among youth athletes, as well as limited knowledge and understanding of key psychological considerations for sport.
JOURNAL OF APPLIED SPORT PSYCHOLOGY
(2022)
Article
Anthropology
Diogo Martinho, Manuel J. Coelho-e-Silva, Joao Valente-dos-Santos, Claudia Minderico, Tomas G. Oliveira, Ines Rodrigues, Jorge Conde, Lauren B. Sherar, Robert M. Malina
Summary: The study found that the Greulich-Pyle method systematically underestimated skeletal age compared to the Fels method in female soccer players, with considerable intraindividual variability between the two methods. Agreement in maturity classifications between methods decreased with increasing age, highlighting the impact of method on estimates of maturity status.
AMERICAN JOURNAL OF HUMAN BIOLOGY
(2022)
Article
Environmental Sciences
Eduardo Guimaraes, Adam D. G. Baxter-Jones, A. Mark Williams, Fernando Tavares, Manuel A. Janeira, Jose Maia
Summary: This study investigated tracking of technical skills in youth male basketball players and found that overall skill tracking was low-to-moderate. Players who were more skilled or improved over time in the under-12 group had better growth-motor performance profiles and were selected for regional teams.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Hospitality, Leisure, Sport & Tourism
Nathan A. Reis, Kent C. Kowalski, Amber D. Mosewich, Leah J. Ferguson
Summary: Research on self-compassion among male athletes is limited despite an increase in literature in recent years. This study found that male athletes are accepting of non-traditional representations of masculinity and are open to embracing self-compassion to improve their sport performance. Future research should focus on developing and evaluating self-compassion interventions tailored specifically for male athletes, considering the potential role of masculinity in their sport experiences.
QUALITATIVE RESEARCH IN SPORT EXERCISE AND HEALTH
(2022)
Article
Sport Sciences
Diogo Martinho, Manuel J. Coelho-e-Silva, Joao Goncalves Santos, Tomas G. Oliveira, Claudia S. Minderico, Andre Seabra, Joao Valente-Dos-Santos, Lauren B. Sherar, Robert M. Malina
Summary: This study examined the body size and adiposity differences among adolescent girls participating in competitive age group youth soccer based on their maturity levels. It found that the number of skeletally mature players increased with competitive age groups, and early maturing girls tended to be heavier compared to their age group peers and late maturing players.
INTERNATIONAL JOURNAL OF SPORTS MEDICINE
(2023)
Article
Sport Sciences
Sara Pereira, Carla Santos, Go Tani, Duarte Freitas, Fernando Garbeloto, Eduardo Guimaraes, Leah E. Robinson, Adam Baxter-Jones, Peter T. Katzmarzyk, Jose Maia
Summary: Boys and girls reached their peak mid-growth spurt at relatively similar ages, but the timing and sequences of physical fitness spurts aligned with this differed between boys and girls.
JOURNAL OF SPORTS SCIENCES
(2022)
Article
Psychology, Multidisciplinary
Leah J. Ferguson, Margo E. K. Adam, Katie E. Gunnell, Kent C. Kowalski, Diane E. Mack, Amber D. Mosewich, Noreen Murphy
Summary: The study found that self-compassion may have a positive and enduring impact on psychological flourishing in female athletes participating in sports, contributing to certain dimensions of psychological well-being. Implementing self-compassion interventions at the start of competitive seasons is recommended.
JOURNAL OF HAPPINESS STUDIES
(2022)
Article
Hospitality, Leisure, Sport & Tourism
A. J. Brinkley, L. B. Sherar, F. E. Kinnafick
Summary: The study evaluated the acceptability and feasibility of a sport-based intervention in helping students excluded from mainstream education reintegrate. The findings suggest that sport can be an effective means of supporting mentorship and mitigating challenges related to reflection, education, and role model identification. To improve acceptability and feasibility, a robust co-production process, consideration of emotional and health literacy of students, and deliberation of long-term implementation and sustainability factors are necessary.
PSYCHOLOGY OF SPORT AND EXERCISE
(2022)
Article
Environmental Sciences
Andrew P. Kingsnorth, Alex Rowlands, Benjamin D. Maylor, Lauren B. Sherar, Michael C. Steiner, Mike D. Morgan, Sally J. Singh, Dale W. Esliger, Mark W. Orme
Summary: This study compared the differences in physical activity between individuals with chronic obstructive pulmonary disease (COPD) and non-COPD controls, and explored the influence of exercise capacity on these differences. The results showed that individuals with COPD had less physical activity time, lower overall activity intensity and intensity distribution compared to the non-COPD control group, but they performed physical activity at a higher intensity relative to their estimated exercise capacity.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Anthropology
Eduardo Guimaraes, Adam D. G. Baxter-Jones, A. Mark Williams, Fernando Tavares, Manuel A. Janeira, Jose Maia
Summary: This study used ontogenetic allometry to identify the optimal body size and shape characteristics associated with physical performance in adolescent basketball players, and investigated the effects of various factors on physical performance development. The results showed that players with a leaner physique performed better in physical performance. Size-adjusted running speed development was independent of body size. Players who matured earlier had better physical fitness. Training data did not significantly affect running speed or lower body explosive strength development. Club characteristics were not significantly associated with any physical performance trajectories.
ANNALS OF HUMAN BIOLOGY
(2023)
Review
Hospitality, Leisure, Sport & Tourism
Danielle L. Cormier, Kent C. Kowalski, Leah J. Ferguson, Amber D. Mosewich, Tara-Leigh F. McHugh, Philipp Rothlin
Summary: Self-compassion has been found to be a protective factor against psychological distress in sport. This scoping review updated previous research and identified new areas of research in self-compassion, including the need for theory development, measurement improvement, exploration of the relationship between self-compassion and performance, and the distinction between self-compassion and mindfulness.
INTERNATIONAL REVIEW OF SPORT AND EXERCISE PSYCHOLOGY
(2023)
Article
Pediatrics
Tatiana Plekhanova, Emily Crawley, Melanie J. Davies, Trish Gorely, Deirdre M. Harrington, Ekaterini Ioannidou, Kamlesh Khunti, Alex V. Rowlands, Lauren B. Sherar, Tom Yates, Charlotte L. Edwardson
Summary: The aim of this study was to examine the association between chronotype and accelerometer-assessed physical behaviours in a cohort of adolescent girls. The study found that a majority of the girls identified as evening chronotypes, and they spent a large proportion of their day sedentary. Morning chronotypes engaged in less sedentary time and had higher overall physical activity on weekdays. These findings may be important for promoting physical activity in adolescent girls.
Article
Health Care Sciences & Services
James P. Sanders, Kajal Gokal, Jonah J. C. Thomas, Jonathan C. Rawstorn, Lauren B. Sherar, Ralph Maddison, Colin J. Greaves, Dale Esliger, Amanda J. Daley, Snacktivity Investigators
Summary: This study aims to develop a smartphone-based physical activity app (SnackApp) to promote participation in a novel physical activity intervention called Snacktivity, and explores and reports the acceptability of the app.
JMIR FORMATIVE RESEARCH
(2023)
Article
Pediatrics
Matthew S. Chapelski, Marta C. Erlandson, Alexandra L. Stoddart, Amanda Froehlich Chow, Adam D. G. Baxter-Jones, M. Louise Humbert
Summary: The purpose of this study was to assess the effects of a 12-week physical literacy intervention on the physical competence of kindergarten and grade one children. The results showed that both groups of children improved their locomotor, object control, and overall physical competence over the intervention period. Interestingly, while teachers perceived improvements in physical competence, parents did not.
Article
Respiratory System
Amy V. Jones, Rachael A. Evans, Alexander S. Harrison, Lauren B. Sherar, Michael C. Steiner, Patrick Doherty, Sally J. Singh
Summary: This study investigated the participation and completion of rehabilitation programs by patients with coexisting COPD and CHF, and compared the outcomes. The results showed that patients with COPD and CHF had lower participation in cardiac rehabilitation, but higher participation in pulmonary rehabilitation. Patients with COPD had better performance in the incremental shuttle walk test following rehabilitation compared to patients with COPD+CHF. The improvements in the 6-min walk test, quality of life, and mood state were similar between the two groups, regardless of diagnosis.