References:

Ahlquist, S., Cash, B. M., & Hame, S. L. (2020). Associations of Early Sport Specialization and High Training Volume with Injury Rates in National Collegiate Athletic Association Division I Athletes. Orthopaedic Journal of Sports Medicine, 8(3), 232596712090682. https://doi.org/10.1177/2325967120906825
Badgeley, M. A., McIlvain, N. M., Yard, E. E., Fields, S. K., & Comstock, R. D. (2013). Epidemiology of 10,000 High School Football Injuries: Patterns of Injury by Position Played. Journal of Physical Activity & Health, 10(2), 160–169.
Barnett, L. M., van Beurden, E., Morgan, P. J., Brooks, L. O., & Beard, J. R. (2009). Childhood motor skill proficiency as a predictor of adolescent physical activity. The Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine, 44(3), 252–259. https://doi.org/10.1016/j.jadohealth.2008.07.004
Barros, W. M. A., Silva, K. G. D., Silva, R. K. P., Souza, A. P. D. S., Silva, A. B. J. D., Silva, M. R. M., Fernandes, M. S. D. S., Souza, S. L. D., & Souza, V. D. O. N. (2022). Effects of Overweight/Obesity on Motor Performance in Children: A Systematic Review. Frontiers in Endocrinology, 12, 759165. https://doi.org/10.3389/fendo.2021.759165
Bell, D. R., DiStefano, L., Pandya, N. K., & McGuine, T. A. (2019). The Public Health Consequences of Sport Specialization. Journal of Athletic Training, 54(10), 1013–1020. https://doi.org/10.4085/1062-6050-521-18
Bell, D. R., Post, E. G., Biese, K., Bay, C., & Valovich McLeod, T. (2018). Sport Specialization and Risk of Overuse Injuries: A Systematic Review With Meta-analysis. Pediatrics, 142(3), e20180657. https://doi.org/10.1542/peds.2018-0657
Bell, D. R., Post, E. G., Trigsted, S. M., Hetzel, S., McGuine, T. A., & Brooks, M. A. (2016). Prevalence of Sport Specialization in High School Athletics: A 1-Year Observational Study. The American Journal of Sports Medicine, 44(6), 1469–1474. https://doi.org/10.1177/0363546516629943
Bell, D. R., Post, E. G., Trigsted, S. M., Schaefer, D. A., McGuine, T. A., Watson, A. M., & Brooks, M. A. (2018). Sport Specialization Characteristics Between Rural and Suburban High School Athletes. Orthopaedic Journal of Sports Medicine, 6(1), 232596711775138. https://doi.org/10.1177/2325967117751386
Bell, D. R., Snedden, T. R., Biese, K. M., Nelson, E., Watson, A. M., Brooks, A., McGuine, T. A., Brown, R. L., & Kliethermes, S. A. (2021). Consensus Definition of Sport Specialization in Youth Athletes Using a Delphi Approach. Journal of Athletic Training, 56(11), 1239–1251. https://doi.org/10.4085/1062-6050-0725.20
Bisi, M. C., Pacini Panebianco, G., Polman, R., & Stagni, R. (2017). Objective assessment of movement competence in children using wearable sensors: An instrumented version of the TGMD-2 locomotor subtest. Gait & Posture, 56, 42–48. https://doi.org/10.1016/j.gaitpost.2017.04.025
Black, L. I. (2022). Organized Sports Participation Among Children Aged 6–17 Years: United States, 2020. 441.
Black, S., Black, K., Dhawan, A., Onks, C., Seidenberg, P., & Silvis, M. (2019). Pediatric Sports Specialization in Elite Ice Hockey Players. Sports Health: A Multidisciplinary Approach, 11(1), 64–68. https://doi.org/10.1177/1941738118800446
Brenner, J. S. & COUNCIL ON SPORTS MEDICINE AND FITNESS. (2016). Sports Specialization and Intensive Training in Young Athletes. Pediatrics, 138(3), e20162148. https://doi.org/10.1542/peds.2016-2148
Burt, C. W., & Overpeck, M. D. (2001). Emergency visits for sports-related injuries. Annals of Emergency Medicine, 37(3), 301–308. https://doi.org/10.1067/mem.2001.111707
Carter, E. A., Westerman, B. J., & Hunting, K. L. (2011). Risk of injury in basketball, football, and soccer players, ages 15 years and older, 2003-2007. Journal of Athletic Training, 46(5), 484–488. https://doi.org/10.4085/1062-6050-46.5.484
Centers for Disease Control and Prevention (CDC). (2006). Sports-related injuries among high school athletes—United States, 2005-06 school year. MMWR. Morbidity and Mortality Weekly Report, 55(38), 1037–1040.
Chen, Y., Gu, Y., Tian, Y., Kim, H., Ma, J., Jia, X., & Qin, L. (2022). Developing a Scale for Measuring the Fundamental Movement Skills of Preschool Children in China. International Journal of Environmental Research and Public Health, 19(21), 14257. https://doi.org/10.3390/ijerph192114257
Cheng, T. L., Fields, C. B., Brenner, R. A., Wright, J. L., Lomax, T., & Scheidt, P. C. (2000). Sports injuries: An important cause of morbidity in urban youth. District of Columbia Child/Adolescent Injury Research Network. Pediatrics, 105(3), E32. https://doi.org/10.1542/peds.105.3.e32
Cook, G., & Burton, L. (Eds.). (2010). Movement: Functional movement systems ; screening, assessment and corrective strategies. On Target Publ. [u.a.].
DiCesare, C. A., Montalvo, A., Barber Foss, K. D., Thomas, S. M., Ford, K. R., Hewett, T. E., Jayanthi, N. A., Stracciolini, A., Bell, D. R., & Myer, G. D. (2019). Lower Extremity Biomechanics Are Altered Across Maturation in Sport-Specialized Female Adolescent Athletes. Frontiers in Pediatrics, 7, 268. https://doi.org/10.3389/fped.2019.00268
DiFiori, J. P., Benjamin, H. J., Brenner, J. S., Gregory, A., Jayanthi, N., Landry, G. L., & Luke, A. (2014). Overuse injuries and burnout in youth sports: A position statement from the American Medical Society for Sports Medicine. British Journal of Sports Medicine, 48(4), 287–288. https://doi.org/10.1136/bjsports-2013-093299
DiStefano, L. J., Beltz, E. M., Root, H. J., Martinez, J. C., Houghton, A., Taranto, N., Pearce, K., McConnell, E., Muscat, C., Boyle, S., & Trojian, T. H. (2018). Sport Sampling Is Associated With Improved Landing Technique in Youth Athletes. Sports Health: A Multidisciplinary Approach, 10(2), 160–168. https://doi.org/10.1177/1941738117736056
Eddy, L., Hill, L. J. B., Mon-Williams, M., Preston, N., Daly-Smith, A., Medd, G., & Bingham, D. D. (2021). Fundamental Movement Skills and Their Assessment in Primary Schools from the Perspective of Teachers. Measurement in Physical Education and Exercise Science, 25(3), 236–249. https://doi.org/10.1080/1091367X.2021.1874955
Fuller, C. W., Ekstrand, J., Junge, A., Andersen, T. E., Bahr, R., Dvorak, J., Hägglund, M., McCrory, P., & Meeuwisse, W. H. (2006). Consensus statement on injury definitions and data collection procedures in studies of football (soccer) injuries. British Journal of Sports Medicine, 40(3), 193–201. https://doi.org/10.1136/bjsm.2005.025270

Fransen, J., Pion, J., Vandendriessche, J., Vandorpe, B., Vaeyens, R., Lenoir, M., & Philippaerts, R. M. (2012). Differences in physical fitness and gross motor coordination in boys aged 6–12 years specializing in one versus sampling more than one sport. Journal of Sports Sciences, 30(4), 379–386. https://doi.org/10.1080/02640414.2011.642808
Fridman, L., Fraser-Thomas, J. L., McFaull, S. R., & Macpherson, A. K. (2013). Epidemiology of sports-related injuries in children and youth presenting to Canadian emergency departments from 2007–2010. Sports Medicine, Arthroscopy, Rehabilitation, Therapy & Technology, 5(1), 30. https://doi.org/10.1186/2052-1847-5-30
Gagen, L. M., & Getchell, N. (2006). Using ‘Constraints’ to Design Developmentally Appropriate Movement Activities for Early Childhood Education. Early Childhood Education Journal, 34(3), 227–232. https://doi.org/10.1007/s10643-006-0135-6
Goodway, J., Ozmun, J. C., & Gallahue, D. L. (with Shape America - Society of Health and Phys-ical Educators). (2021). Understanding motor development: Infants, children, adolescents, adults (Eighth edition). Jones & Bartlett Learning.
Goodway, J. D., & Robinson, L. E. (2015). Developmental Trajectories in Early Sport Specialization: A Case for Early Sampling from a Physical Growth and Motor Development Perspective. Kinesiology Review, 4(3), 267–278. https://doi.org/10.1123/kr.2015-0028
Güllich, A., & Emrich, E. (2006). Evaluation of the support of young athletes in the elite sports system. European Journal for Sport and Society, 3(2), 85–108. https://doi.org/10.1080/16138171.2006.11687783
Hoge, C., Sabbagh, R., Morgan, M., & Grawe, B. M. (2022). Epidemiology of youth and high school American football-related injuries presenting to United States emergency departments: 2010-2019. The Physician and Sportsmedicine, 50(4), 332–337. https://doi.org/10.1080/00913847.2021.1931980
Jayanthi, N. A., LaBella, C. R., Fischer, D., Pasulka, J., & Dugas, L. R. (2015). Sports-Specialized Intensive Training and the Risk of Injury in Young Athletes: A Clinical Case-Control Study. The American Journal of Sports Medicine, 43(4), 794–801. https://doi.org/10.1177/0363546514567298
Jayanthi, N. A., Post, E. G., Laury, T. C., & Fabricant, P. D. (2019). Health Consequences of Youth Sport Specialization. Journal of Athletic Training, 54(10), 1040–1049. https://doi.org/10.4085/1062-6050-380-18
Jayanthi, N., Kleithermes, S., Dugas, L., Pasulka, J., Iqbal, S., & LaBella, C. (2020). Risk of Injuries Associated With Sport Specialization and Intense Training Patterns in Young Athletes: A Longitudinal Clinical Case-Control Study. Orthopaedic Journal of Sports Medicine, 8(6), 232596712092276. https://doi.org/10.1177/2325967120922764
Jimenez-Garcia, J. A., Hong, C. K., Miller, M. B., & DeMont, R. (2020). The Child Focused Injury Risk Screening Tool (ChildFIRST) for 8-12-year-old Children: A Validation Study Using A Modified Delphi Method. Measurement in Physical Education and Exercise Science, 24(3), 235–246. https://doi.org/10.1080/1091367X.2020.1793344
Jimenez-Garcia, J. A., Montpetit, C., & DeMont, R. (2024). Concurrent and Convergent Validity of the Child Focused Injury Risk Screening Tool (ChildFirst) for 8-12-Year-Old Children. Measurement in Physical Education and Exercise Science, 28(1), 27–39. https://doi.org/10.1080/1091367X.2023.2211980
Kantomaa, M. T., Stamatakis, E., Kankaanpää, A., Kaakinen, M., Rodriguez, A., Taanila, A., Ahonen, T., Järvelin, M.-R., & Tammelin, T. (2013). Physical activity and obesity mediate the association between childhood motor function and adolescents’ academic achievement. Proceedings of the National Academy of Sciences of the United States of America, 110(5), 1917–1922. https://doi.org/10.1073/pnas.1214574110
Kerr, Z. Y., Dompier, T. P., Snook, E. M., Marshall, S. W., Klossner, D., Hainline, B., & Corlette, J. (2014). National collegiate athletic association injury surveillance system: Review of methods for 2004-2005 through 2013-2014 data collection. Journal of Athletic Training, 49(4), 552–560. https://doi.org/10.4085/1062-6050-49.3.58
Kiesel, K., Plisky, P. J., & Voight, M. L. (2007). Can Serious Injury in Professional Football be Predicted by a Preseason Functional Movement Screen? North American Journal of Sports Physical Therapy: NAJSPT, 2(3), 147–158.
Knowles, S. B., Marshall, S. W., Miller, T., Spicer, R., Bowling, J. M., Loomis, D., Millikan, R. W., Yang, J., & Mueller, F. O. (2007). Cost of injuries from a prospective cohort study of North Carolina high school athletes. Injury Prevention: Journal of the International Society for Child and Adolescent Injury Prevention, 13(6), 416–421. https://doi.org/10.1136/ip.2006.014720
Koźlenia, D., & Domaradzki, J. (2021). Effects of Combination Movement Patterns Quality and Physical Performance on Injuries in Young Athletes. International Journal of Environmental Research and Public Health, 18(11), 5536. https://doi.org/10.3390/ijerph18115536
Kritz, M., Cronin, J., & Hume, P. (2009). Using the Body Weight Forward Lunge to Screen an Athlete’s Lunge Pattern. Strength & Conditioning Journal, 31(6), 15–24. https://doi.org/10.1519/SSC.0b013e3181c1b480
LaPrade, R. F., Agel, J., Baker, J., Brenner, J. S., Cordasco, F. A., Côté, J., Engebretsen, L., Feeley, B. T., Gould, D., Hainline, B., Hewett, T. E., Jayanthi, N., Kocher, M. S., Myer, G. D., Nissen, C. W., Philippon, M. J., & Provencher, M. T. (2016). AOSSM Early Sport Specialization Consensus Statement. Orthopaedic Journal of Sports Medicine, 4(4), 232596711664424. https://doi.org/10.1177/2325967116644241
Law, M. P., Côté, J., & Ericsson, K. A. (2007). Characteristics of expert development in rhythmic gymnastics: A retrospective study. International Journal of Sport and Exercise Psychology, 5(1), 82–103. https://doi.org/10.1080/1612197X.2008.9671814
Lloyd, M., Saunders, T. J., Bremer, E., & Tremblay, M. S. (2014). Long-term importance of fundamental motor skills: A 20-year follow-up study. Adapted Physical Activity Quarterly: APAQ, 31(1), 67–78. https://doi.org/10.1123/apaq:2013-0048
Logan, S. W., Robinson, L. E., Wilson, A. E., & Lucas, W. A. (2012). Getting the fundamentals of movement: A meta-analysis of the effectiveness of motor skill interventions in children. Child: Care, Health and Development, 38(3), 305–315. https://doi.org/10.1111/j.1365-2214.2011.01307.x
Lubans, D. R., Morgan, P. J., Cliff, D. P., Barnett, L. M., & Okely, A. D. (2010). Fundamental Movement Skills in Children and Adolescents: Review of Associated Health Benefits. Sports Medicine, 40(12), 1019–1035. https://doi.org/10.2165/11536850-000000000-00000
Lykissas, M. G., Eismann, E. A., & Parikh, S. N. (2013). Trends in pediatric sports-related and recreation-related Injuries in the United States in the last decade. Journal of Pediatric Orthopedics, 33(8), 803–810. https://doi.org/10.1097/BPO.0000000000000099
MacNamara, Á., Collins, D., & Giblin, S. (2015). Just let them play? Deliberate preparation as the most appropriate foundation for lifelong physical activity. Frontiers in Psychology, 6. https://doi.org/10.3389/fpsyg.2015.01548
Matzkin, E., & Garvey, K. (2019). Youth Sports Specialization: Does Practice Make Perfect? NASN School Nurse, 34(2), 100–103. https://doi.org/10.1177/1942602X18814619
Miller, Matthew Bruce (2021). Assessing Movement Competence and Informing Injury Prevention in 8–12 Year Old Children: Development of the Child Focused Injury Risk Screening Tool (ChildFIRST). PhD thesis, Concordia University. https://orcid.org/0000-0003-4275-2764
Miller, M. B., Jimenez, -Garcia John A., Hong, C. K., & DeMont, R. G. (2018). Process-Based Assessment of Physical Literacy and the Connection to Injury Prevention Programs. Athletic Training & Sports Health Care, 10(6), 277–284. https://doi.org/10.3928/19425864-20180924-01
Miller, M. B., Jimenez-Garcia, J. A., Hong, C. K., & DeMont, R. (2020). Assessing Movement Competence and Screening for Injury Risk in 8–12-year-Old Children: Reliability of the Child-Focused Injury Risk Screening Tool (ChildFIRST). Measurement in Physical Education and Exercise Science, 24(3), 205–217. https://doi.org/10.1080/1091367X.2020.1781129
Miller, M., Malekian, S., Burgess, J., & LaBella, C. (2019). Evaluating a Commonly Used Tool for Measuring Sport Specialization in Young Athletes. Journal of Athletic Training, 54(10), 1083–1088. https://doi.org/10.4085/1062-6050-379-18
Morgan, P. J., Barnett, L. M., Cliff, D. P., Okely, A. D., Scott, H. A., Cohen, K. E., & Lubans, D. R. (2013). Fundamental movement skill interventions in youth: A systematic review and meta-analysis. Pediatrics, 132(5), e1361-1383. https://doi.org/10.1542/peds.2013-1167
Mosher, A., Fraser-Thomas, J., & Baker, J. (2020). What Defines Early Specialization: A Systematic Review of Literature. Frontiers in Sports and Active Living, 2, 596229. https://doi.org/10.3389/fspor.2020.596229
Myer, G. D., Jayanthi, N., DiFiori, J. P., Faigenbaum, A. D., Kiefer, A. W., Logerstedt, D., & Micheli, L. J. (2016). Sports Specialization, Part II: Alternative Solutions to Early Sport Specialization in Youth Athletes. Sports Health, 8(1), 65–73. https://doi.org/10.1177/1941738115614811
Myer, G. D., Kushner, A. M., Brent, J. L., Schoenfeld, B. J., Hugentobler, J., Lloyd, R. S., Vermeil, A., Chu, D. A., Harbin, J., & McGill, S. M. (2014). The Back Squat: A Proposed Assessment of Functional Deficits and Technical Factors That Limit Performance. Strength & Conditioning Journal, 36(6), 4–27. https://doi.org/10.1519/SSC.0000000000000103
Nalliah, R. P., Anderson, I. M., Lee, M. K., Rampa, S., Allareddy, V., & Allareddy, V. (2014). Epidemiology of Hospital-Based Emergency Department Visits Due to Sports Injuries. Pediatric Emergency Care, 30(8), 511. https://doi.org/10.1097/PEC.0000000000000180
Padaki, A. S., Popkin, C. A., Hodgins, J. L., Kovacevic, D., Lynch, T. S., & Ahmad, C. S. (2017). Factors That Drive Youth Specialization. Sports Health: A Multidisciplinary Approach, 9(6), 532–536. https://doi.org/10.1177/1941738117734149
Padua, D. A., Marshall, S. W., Boling, M. C., Thigpen, C. A., Garrett, W. E., & Beutler, A. I. (2009). The Landing Error Scoring System (LESS) Is a Valid and Reliable Clinical As-sessment Tool of Jump-Landing Biomechanics: The JUMP-ACL Study. The American Journal of Sports Medicine, 37(10), 1996–2002. https://doi.org/10.1177/0363546509343200
Patel, D. R., Yamasaki, A., & Brown, K. (2017). Epidemiology of sports-related musculoskeletal injuries in young athletes in United States. Translational Pediatrics, 6(3), 160–166. https://doi.org/10.21037/tp.2017.04.08
Pelet, S., Bergeron, J. J., Marquis, M., & L Belzile, E. (2022). Epidemiology of Injuries in High School Football Players: A Prospective Cohort Study. Journal of Orthopaedics and Sports Medicine, 04(04). https://doi.org/10.26502/josm.511500065
Pill, S., & Harvey, S. (2019). A Narrative Review of Children’s Movement Competence Research 1997-2017. Physical Culture and Sport. Studies and Research, 81(1), 47–74. https://doi.org/10.2478/pcssr-2019-0005
Pincivero, D. M., & Bompa, T. O. (1997). A Physiological Review of American Football: Sports Medicine, 23(4), 247–260. https://doi.org/10.2165/00007256-199723040-00004

Podberesky, D. J., Unsell, B. J., & Anton, C. G. (2009). Imaging of American football injuries in children. Pediatric Radiology, 39(12), 1264–1274; quiz 1385–1386. https://doi.org/10.1007/s00247-009-1359-6
Post, E. G., Bell, D. R., Trigsted, S. M., Pfaller, A. Y., Hetzel, S. J., Brooks, M. A., & McGuine, T. A. (2017). Association of Competition Volume, Club Sports, and Sport Specialization With Sex and Lower Extremity Injury History in High School Athletes. Sports Health: A Multidisciplinary Approach, 9(6), 518–523. https://doi.org/10.1177/1941738117714160
Post, E. G., Trigsted, S. M., Riekena, J. W., Hetzel, S., McGuine, T. A., Brooks, M. A., & Bell, D. R. (2017). The Association of Sport Specialization and Training Volume With Injury History in Youth Athletes. The American Journal of Sports Medicine, 45(6), 1405–1412. https://doi.org/10.1177/0363546517690848
Price, R. J. (2004). The Football Association medical research programme: An audit of injuries in academy youth football. British Journal of Sports Medicine, 38(4), 466–471. https://doi.org/10.1136/bjsm.2003.005165
Rechel, J. A., Yard, E. E., & Comstock, R. D. (2008). An epidemiologic comparison of high school sports injuries sustained in practice and competition. Journal of Athletic Training, 43(2), 197–204. https://doi.org/10.4085/1062-6050-43.2.197
Riethmuller, A. M., Jones, R., & Okely, A. D. (2009). Efficacy of interventions to improve motor development in young children: A systematic review. Pediatrics, 124(4), e782-792. https://doi.org/10.1542/peds.2009-0333
Robinson, L. E. (2011). The relationship between perceived physical competence and fundamental motor skills in preschool children. Child: Care, Health and Development, 37(4), 589–596. https://doi.org/10.1111/j.1365-2214.2010.01187.x
Robinson, L. E., Stodden, D. F., Barnett, L. M., Lopes, V. P., Logan, S. W., Rodrigues, L. P., & D’Hondt, E. (2015). Motor Competence and its Effect on Positive Developmental Trajectories of Health. Sports Medicine, 45(9), 1273–1284. https://doi.org/10.1007/s40279-015-0351-6
Robinson, L. E., Wadsworth, D. D., & Peoples, C. M. (2012). Correlates of school-day physical activity in preschool students. Research Quarterly for Exercise and Sport, 83(1), 20–26. https://doi.org/10.1080/02701367.2012.10599821
Robinson, L. E., Webster, E. K., Logan, S. W., Lucas, W. A., & Barber, L. T. (2012). Teaching Practices that Promote Motor Skills in Early Childhood Settings. Early Childhood Education Journal, 40(2), 79–86. https://doi.org/10.1007/s10643-011-0496-3
Rogers, S. A., Hassmén, P., Alcock, A., Gilleard, W. L., & Warmenhoven, J. S. (2020). Intervention strategies for enhancing movement competencies in youth athletes: A narrative systematic review. International Journal of Sports Science & Coaching, 15(2), 256–272. https://doi.org/10.1177/1747954119900664
Rugg, C. M., Coughlan, M. J., Li, J. N., Hame, S. L., & Feeley, B. T. (2021). Early Sport Specialization Among Former National Collegiate Athletic Association Athletes: Trends, Scholarship Attainment, Injury, and Attrition. The American Journal of Sports Medicine, 49(4), 1049–1058. https://doi.org/10.1177/0363546520988727
Soligard, T., Myklebust, G., Steffen, K., Holme, I., Silvers, H., Bizzini, M., Junge, A., Dvorak, J., Bahr, R., & Andersen, T. E. (2008). Comprehensive warm-up programme to prevent injuries in young female footballers: Cluster randomised controlled trial. BMJ, 337(dec09 2), a2469–a2469. https://doi.org/10.1136/bmj.a2469
Stodden, D. F., Goodway, J. D., Langendorfer, S. J., Roberton, M. A., Rudisill, M. E., Garcia, C., & Garcia, L. E. (2008). A Developmental Perspective on the Role of Motor Skill Competence in Physical Activity: An Emergent Relationship. Quest, 60(2), 290–306. https://doi.org/10.1080/00336297.2008.10483582
Swindell, H. W., Marcille, M. L., Trofa, D. P., Paulino, F. E., Desai, N. N., Lynch, T. S., Ahmad, C. S., & Popkin, C. A. (2019). An Analysis of Sports Specialization in NCAA Division I Collegiate Athletics. Orthopaedic Journal of Sports Medicine, 7(1), 232596711882117. https://doi.org/10.1177/2325967118821179
Tompsett, C., Burkett, B., & McKean, M. R. (2015). Comparing performances of fundamental movement skills and basic human movements: A pilot study. Journal of Fitness Research, 4(3), 13-25. http://research.usc.edu.au/ vital/access/manager/Repository/usc:18177
Vameghi, R., Shams, A., & Shamsipour Dehkordi, P. (2013). The effect of age, sex and obesity on fundamental motor skills among 4 to 6 years-old children. Pakistan Journal of Medical Sciences, 29(2), 586–589.
Whatman, C., van den Berg, C., Black, A., West, S., Hagel, B., & Emery, C. (2022). High Sport Specialization Is Associated With More Musculoskeletal Injuries in Canadian High School Students. Clinical Journal of Sport Medicine, Publish Ahead of Print. https://doi.org/10.1097/JSM.0000000000001100
Whitehead, M. (2001). The Concept of Physical Literacy. European Journal of Physical Educa-tion, 6(2), 127–138. https://doi.org/10.1080/1740898010060205
Whiting, W. C. (2015). Biomechanics of Common Musculoskeletal Injuries in American Football. Strength & Conditioning Journal, 37(6), 79. https://doi.org/10.1519/SSC.0000000000000166
Yang, J., Tibbetts, A. S., Covassin, T., Cheng, G., Nayar, S., & Heiden, E. (2012). Epidemiology of overuse and acute injuries among competitive collegiate athletes. Journal of Athletic Training, 47(2), 198–204. https://doi.org/10.4085/1062-6050-47.2.198