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Froude AM, Hancock DJ, McLaren CD, Vierimaa M, Côté J. Exploring the structure of relative age effects research using citation network analysis. J Sports Sci 2024:1-10. [PMID: 38899726 DOI: 10.1080/02640414.2024.2370144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 06/13/2024] [Indexed: 06/21/2024]
Abstract
Since the 1980s, research on relative age effects (RAEs) consistently shows that relatively older individuals are advantaged in sport and other contexts. With the recent proliferation of studies on RAEs, periodic knowledge synthesis becomes imperative. Our purpose was to conduct a cross-disciplinary citation network analysis of RAEs literature to enhance our knowledge of RAEs citation structures and the interconnectivity of RAEs studies. We analysed 484 RAEs articles found in Web of Science that were published before 2022. Descriptive results revealed a 12.6% annual growth rate for total RAEs articles published since 1980. The articles appeared in 151 journals, had 1,180 unique authors, and averaged 23.9 citations received. Three theoretical/review papers had the most substantial influence on the field. For the conceptual structure of the field, it was apparent that RAEs research focused mainly on sport performance, maturity, and competition. Regarding intellectual structure, three distinct clusters of articles were cited together, and 13 authorship clusters were detected with few between-cluster connections. The results describe a field with productivity but little interconnectivity among authors and papers. We offer insights into this trend and the role that influential authors/articles have in the field.
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Affiliation(s)
- Anna M Froude
- Faculty of Science Memorial University of Newfoundland, St. John's, Canada
| | - David J Hancock
- School of Human Kinetics & Recreation, Memorial University of Newfoundland, St. John's, Canada
| | - Colin D McLaren
- Schulich School of Education, Nipissing University, North Bay, Canada
| | | | - Jean Côté
- School of Kinesiology and Health Studies, Queen's University, Kingston, Canada
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Hermassi S, Konukman F, Al-Marri SS, Hayes LD, Bartels T, Schwesig R. Associations between biological maturation, physical performance, postural control, and mathematical achievement in youth soccer players. PLoS One 2024; 19:e0298301. [PMID: 38451897 PMCID: PMC10919613 DOI: 10.1371/journal.pone.0298301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 01/23/2024] [Indexed: 03/09/2024] Open
Abstract
This investigation explored relationships between biological maturation, physical and academic performance in young male soccer players. Thirty-eight players (age: 9.79 ± 1.21 years; body mass index (BMI): 20.4 ± 2.39 kg/m2; body fat: 16.8 ± 2.21%) participated. Measures of anthropometry used for body mass, body fat percentage (%BF), and BMI as well. Postural control, 15 m sprint, squat jumps and counter-movement jumps (SJ, CMJ), and T-half test for change-of-direction (CoD) were parameters of physical performance. The grade point average (GPA) of mathematics determined academic attainment. Moore's equations were used to estimate their maturity status (PHV). Biological maturation was highly correlated with most (not 15 m sprint) physical and academic performance parameters, especially CMJ (r = -0.812) and mathematics (r = -0.781). Academic performance showed the largest relations to the jumping performance (CMJ: r = 0.771; SJ: r = 0.723). In contrast, anthropometric and fatness parameters were not relevantly (r ≥ 0.5) correlated with any other parameters. The largest correlations were calculated for sitting height vs. SJ (r = -0.408), sitting height vs. postural control (r = -0.355), leg length vs. postural control (r = -0.339). As a result, it is essential to take biological maturation inconsideration while assessing the physical and academic achievement of young soccer players. In consequence, soccer coaches and physical education (PE) teachers should be cognizant of the impact of biological maturity on physical and academic performance to assist fair and equal opportunities for achievement in young players.
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Affiliation(s)
- Souhail Hermassi
- Physical Education Department, College of Education, Qatar University, Doha, Qatar
| | - Ferman Konukman
- Physical Education Department, College of Education, Qatar University, Doha, Qatar
| | | | - Lawrence D. Hayes
- Sport and Physical Activity Research Institute, School of Health and Life Sciences, University of the West of Scotland, Glasgow, United Kingdom
| | - Thomas Bartels
- MVZ Sports Clinic Halle GmbH, Center of Joint Surgery, Halle (Saale), Germany
| | - René Schwesig
- Department of Orthopedic and Trauma Surgery, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
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Hermassi S, Ketelhut S, Konukman F, Sellami M, Al-Marri S, Nigg CR, Schwesig R. Comparative Analysis of Physical Activity, Performance-Related Health, and Academic Achievements in 11-to-13-Year-Old Schoolchildren in Qatar. Healthcare (Basel) 2024; 12:588. [PMID: 38470699 PMCID: PMC10930824 DOI: 10.3390/healthcare12050588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 02/22/2024] [Accepted: 02/29/2024] [Indexed: 03/14/2024] Open
Abstract
Age-related differences in physical activity (PA), maturity status (PHV), physical performance (PP), and academic achievement (AA) among schoolchildren in Qatar were examined. Sixty-nine students from a school in Doha were categorized into three equal (n = 23) groups: 11-year-old students (U11; male: n = 14), 12-year-old students (U12: male: n = 7), and 13-year-old students (U13: male: n = 11). The testing process comprised a medicine ball throw, Stork balance test, hand grip strength test, the T-half test (PP), GPA in Arabic, mathematics, science (AA), International Physical Activity Questionnaire Short Form (PA), and Moore's equations (PHV). Relevant age-related differences (p < 0.001) were identified in mathematics, science, the T-half test, maturity, and arm span. Notably, differences between adjacent age groups were evident between U11 and U12, concerning arm span, maturity, mathematics, and science, and between U12 and U13 (the T-half test, mathematics, science). Concerning AP, the performance maxima were calculated for U12 (mathematics, science) and U11 (Arabic). Regarding PP, performance maxima were only observed for U13. Except for the moderate level, the highest levels of PA were detected in U13. Maturity status and anthropometric parameters did not differ significantly between age groups. However, AA demonstrated the most notable age-related differences. Specifically, mathematics showed substantial differences between adjacent age groups.
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Affiliation(s)
- Souhail Hermassi
- Physical Education Department, College of Education, Qatar University, Doha 2713, Qatar; (F.K.); (M.S.); (S.A.-M.)
| | - Sascha Ketelhut
- Institute of Sport Science, University of Bern, 3012 Bern, Switzerland; (S.K.); (C.R.N.)
| | - Ferman Konukman
- Physical Education Department, College of Education, Qatar University, Doha 2713, Qatar; (F.K.); (M.S.); (S.A.-M.)
| | - Maha Sellami
- Physical Education Department, College of Education, Qatar University, Doha 2713, Qatar; (F.K.); (M.S.); (S.A.-M.)
| | - Senaid Al-Marri
- Physical Education Department, College of Education, Qatar University, Doha 2713, Qatar; (F.K.); (M.S.); (S.A.-M.)
| | - Claudio R. Nigg
- Institute of Sport Science, University of Bern, 3012 Bern, Switzerland; (S.K.); (C.R.N.)
| | - René Schwesig
- Department of Orthopedic and Trauma Surgery, Martin-Luther-University Halle-Wittenberg, 06120 Halle (Saale), Germany;
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Nishiyama M, Kyono Y, Yamaguchi H, Kawamura A, Oikawa S, Tokumoto S, Tomioka K, Nozu K, Nagase H. Association of early bedtime at 3 years of age with higher academic performance and better non-cognitive skills in elementary school. Sci Rep 2023; 13:20926. [PMID: 38017093 PMCID: PMC10684487 DOI: 10.1038/s41598-023-48280-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 11/24/2023] [Indexed: 11/30/2023] Open
Abstract
This study investigated the relationship between sleep habits in early childhood and academic performance and non-cognitive skills in the first grade. We retrospectively analyzed a longitudinal population-based cohort from birth through early childhood, up to elementary school, in Amagasaki City, Japan. The primary outcome was academic performance in the first grade. Other outcomes were self-reported non-cognitive skills. Overall, 4395 children were enrolled. Mean national language scores for children with bedtimes at 18:00-20:00, 21:00, 22:00, and ≥ 23:00 were 71.2 ± 19.7, 69.3 ± 19.4, 68.3 ± 20.1, and 62.5 ± 21.3, respectively. Multiple regression analysis identified bedtime at 3 years as a significant factor associated with academic performance. However, sleep duration was not significantly associated with academic performance. Bedtime at 3 years also affected non-cognitive skills in the first grade. Diligence decreased with a later bedtime (21:00 vs. 18:00-20:00; odds ratio [OR]: 1.98, 95% confidence interval [CI] 1.27-3.09; 22:00 vs. 18:00-20:00; OR: 2.15, 95% CI 1.37-3.38; ≥ 23:00 vs. 18:00-20:00; OR: 2.33, 95% CI 1.29-4.20). Thus, early bedtime at 3 years may be associated with a higher academic performance and better non-cognitive skills in the first grade. Optimum early-childhood sleep habits may positively impact academic future.
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Affiliation(s)
- Masahiro Nishiyama
- Department of Pediatrics, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan.
- Department of Neurology, Hyogo Prefectural Kobe Children's Hospital, Kobe, Hyogo, Japan.
| | - Yuki Kyono
- Department of Pediatrics, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Hiroshi Yamaguchi
- Department of Pediatrics, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Aoi Kawamura
- Department of Pediatrics, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Shizuka Oikawa
- Department of Pediatrics, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Shoichi Tokumoto
- Department of Pediatrics, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Kazumi Tomioka
- Department of Pediatrics, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Kandai Nozu
- Department of Pediatrics, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Hiroaki Nagase
- Department of Pediatrics, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
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Keyes KM, Kristensen P, Undem K, Mehlum IS. Relative Age Within School Grade, Including Delayed and Accelerated School Start: Associations With Midlife Psychiatric Disorders, Suicide, and Alcohol- and Drug-Related Mortality. Am J Epidemiol 2023; 192:1453-1462. [PMID: 37147181 DOI: 10.1093/aje/kwad111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 04/03/2023] [Accepted: 05/01/2023] [Indexed: 05/07/2023] Open
Abstract
Within a school grade, children who are young for grade are at increased risk of psychiatric diagnoses, but the long-term implications remain understudied, and associations with students who delay or accelerate entry underexplored. We used Norwegian birth cohort records (birth years: 1967-1976, n = 626,928) linked to records in midlife. On-time school entry was socially patterned; among those born in December, 23.0% of children in the lowest socioeconomic position (SEP) delayed school entry, compared with 12.2% among the highest SEP. Among those who started school on time, there was no evidence for long-term associations between birth month and psychiatric/behavioral disorders or mortality. Controlling for SEP and other confounders, delayed school entry was associated with increased risk of psychiatric disorders and mortality. Children with delayed school entry were 1.31 times more likely to die by suicide (95% confidence interval: 1.07, 1.61) by midlife, and 1.96 times more likely to die from drug-related death (95% confidence interval: 1.59, 2.40) by midlife than those born late in the year who started school on time. Associations with delayed school entry are likely due to selection, and results thus underscore that long-term health risks can be tracked early in life, including through school entry timing, and are highly socially patterned.
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Mori T, Aoki T, Oishi K, Harada T, Tanaka C, Tanaka S, Tanaka H, Fukuda K, Kamikawa Y, Tsuji N, Komura K, Kokudo S, Morita N, Suzuki K, Watanabe M, Kasanami R, Hara T, Miyazaki R, Abe T, Yamatsu K, Kume D, Asai H, Yamamoto N, Tsuji T, Nakaya T, Ishii K. Neighborhood-level socioeconomic factors moderate the association between physical activity and relative age effect: a cross-sectional survey study with Japanese adolescents. BMC Public Health 2022; 22:1656. [PMID: 36050681 PMCID: PMC9434946 DOI: 10.1186/s12889-022-14052-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 08/22/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Relative age effect is defined as a phenomenon where children born early generally perform better than children born later in the same cohort. Physical activity is an important factor that might be influenced by the relative age effect. Socioeconomic factors (e.g., parent's income, education level) are also associated with the adolescent's physical activity. However, no existing study has examined whether socioeconomic factors moderate the relative age effect on the adolescent's physical activity. This study aims to clarify whether and how birth month and socioeconomic factors relate to organized sports and physical activity among adolescents in Japan. METHODS We conducted a questionnaire survey targeting 21,491 adolescents who live in a widespread neighborhood. We included 8102 adolescents (4087 males and 4015 females: mean age 13.1 ± 1.4) in the analysis. Based on the participants' birth months, we divided them into four groups (April to June, July to September, October to December, January to March). We asked participants to report their organized sports participation. Using the International Physical Activity Questionnaire for Japanese Early Adolescents, we identified their moderate to vigorous physical activity (MVPA). Neighborhood-level socioeconomic factors (areal deprivation, average annual income, education level) were analyzed based on national surveys, such as the population census. We performed multilevel logistic and linear regression analysis for organized sports participation and MVPA, respectively. Moreover, a simple slope analysis was implemented if the interaction between birth month and socioeconomic factor was significant in the multilevel linear regression analysis. RESULTS Among males, relatively younger adolescents (adolescents who were born later in the same grade) were less likely to participate in organized sports activites (OR=0.90, 95% CI 0.82-0.97, p<0.05), while both males and females engaged in less MVPA (b=-0.54, b=-0.25, p< 0.01, respectively). We observed an interaction between birth month and socioeconomic factors. Among males in low-income neighborhoods, and females in more deprived neighborhoods, relatively younger adolescents engaged in less MVPA. CONCLUSIONS Socioeconomic factors moderate the relative age effect on adolescents' physical activity. The relative age effect on adolescents' physical activity might be more likely to appear among adolescents from socioeconomically disadvantaged neighborhoods.
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Affiliation(s)
- Takaaki Mori
- Graduate School of Health and Sports Science, Doshisha University, Kyotanabe, Japan
| | - Takumi Aoki
- Faculty of Education, Miyagi Gakuin Women's University, Sendai, Japan
| | - Kan Oishi
- Graduate School of Health and Sports Science, Doshisha University, Kyotanabe, Japan
| | - Tetsuo Harada
- Education Unit, Humanities and Social Science Cluster, Research and Education Faculty, Kochi University, Kochi, Japan
| | - Chiaki Tanaka
- Department of Human Nutrition, Tokyo Kasei Gakuin University, Tokyo, Japan
| | - Shigeho Tanaka
- Faculty of Nutrition, Kagawa Nutrition University, Sakato, Japan
| | - Hideki Tanaka
- Department of Medical Science and Technology, Faculty of Health Science, Hiroshima International University, Higashihiroshima, Japan
| | - Kazuhiko Fukuda
- Department of Psychology and Humanities, Faculty of Sociology, Edogawa University, Nagareyama, Japan
| | | | - Nobuhiro Tsuji
- Graduate School of Education, Shiga University, Otsu, Japan
| | | | - Shohei Kokudo
- School of Health and Sports Sciences, Chukyo University, Toyota, Japan
| | - Noriteru Morita
- Department of Sports Cultural Studies, Hokkaido University of Education, Iwamizawa, Japan
| | - Kazuhiro Suzuki
- Faculty of Education, Miyagi Gakuin Women's University, Sendai, Japan
| | | | - Ryoji Kasanami
- Health and Sports Science Education, Faculty of Education, Nara University of Education, Nara, Japan
| | - Taketaka Hara
- Faculty of Education, Shimane University, Matsue, Japan
| | - Ryo Miyazaki
- Faculty of Human Sciences, Shimane University, Matsue, Japan
| | - Takafumi Abe
- Center for Community-Based Healthcare Research and Education (CoHRE), Head Office for Research and Academic Information, Shimane University, Izumo, Japan
| | - Koji Yamatsu
- Faculty of Education, Saga University, Saga, Japan
| | - Daisuke Kume
- Faculty of Information Science and Technology, Osaka Institute Technology, Hirakata, Japan
| | - Hedenori Asai
- Faculty of Collaborative Regional Innovation, Ehime University, Matsuyama, Japan
| | - Naofumi Yamamoto
- Faculty of Collaborative Regional Innovation, Ehime University, Matsuyama, Japan
| | - Taishi Tsuji
- Faculty of Health and Sports Sciences, University of Tsukuba, Tokyo, Japan
| | - Tomoki Nakaya
- Graduate School of Environmental Studies, Tohoku University, Sendai, Japan
| | - Kojiro Ishii
- Faculty of Health and Sports Science, Doshisha University, Kyotanabe, Japan.
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