{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T16:03:16Z","timestamp":1790697796674,"version":"4.1.0"},"reference-count":39,"publisher":"Human Kinetics","issue":"10","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,10,1]]},"abstract":"<jats:p>\n                    <jats:bold>\n                      <jats:italic>Purpose<\/jats:italic>\n                    <\/jats:bold>\n                    <jats:italic>:<\/jats:italic>\n                    To quantify and compare most demanding periods (MDPs) of match play in soccer for total distance, high-speed running distance, and sprint distance across 1-, 3-, and 5-minute periods, examining both positional differences and age groups (under 17, under 19, and under 23) in youth male soccer players.\n                    <jats:bold>\n                      <jats:italic>Methods<\/jats:italic>\n                    <\/jats:bold>\n                    <jats:italic>:<\/jats:italic>\n                    Sixty-eight outfield players from the same professional academy (under 17: n\u2009=\u200924, under 19: n\u2009=\u200923, and under 23: n\u2009=\u200921) competing in top national divisions were monitored over 50 official matches using 10-Hz global navigation satellite system units (Catapult Vector S7). MDPs were identified using the rolling average method for each period. Linear mixed models compared MDPs among positions and age groups, with Bonferroni-adjusted post hoc tests and effect sizes (Cohen\u2019s\n                    <jats:italic>d<\/jats:italic>\n                    ).\n                    <jats:bold>\n                      <jats:italic>Results<\/jats:italic>\n                    <\/jats:bold>\n                    <jats:italic>:<\/jats:italic>\n                    No differences were observed between age groups for any metric or period length (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009&gt;\u2009.05). However, positional differences were found. Center backs consistently exhibited the lowest values across all metrics (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009&lt;\u2009.05;\n                    <jats:italic>d<\/jats:italic>\n                    \u2009=\u20091.18\u20132.72), while midfielders showed similar sprint distance values to center backs. Strikers and wingers presented the highest sprint distance MDPs, whereas midfielders and strikers recorded the highest total distance MDPs. Shorter time windows produced higher relative values (in meters per minute) across all metrics.\n                    <jats:bold>\n                      <jats:italic>Conclusions<\/jats:italic>\n                    <\/jats:bold>\n                    <jats:italic>:<\/jats:italic>\n                    From under 17 onward, highly trained male youth players displayed comparable external load demands during the MDPs of match play, irrespective of age group. Conversely, MDPs were strongly position-dependent, reflecting distinct tactical and physical demands. These findings reinforce the importance of position-specific training while ensuring all players are prepared to cope with atypical high-intensity demands during match play.\n                  <\/jats:p>","DOI":"10.1123\/ijspp.2025-0594","type":"journal-article","created":{"date-parts":[[2026,5,7]],"date-time":"2026-05-07T02:53:53Z","timestamp":1778122433000},"page":"1149-1156","source":"Crossref","is-referenced-by-count":0,"title":["The Most Demanding Match Periods in Youth Male Soccer: Analysis by Age Groups and Playing Position"],"prefix":"10.1123","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0134-5038","authenticated-orcid":true,"given":"Ricardo","family":"Pimenta","sequence":"first","affiliation":[{"name":"Research Center of the Polytechnic Institute of Maia (N2i), Maia Polytechnic Institute (IPMAIA), Maia, Portugal"},{"name":"Research Center in Sports Sciences, Health Sciences and Human Development (CIDESD), University of Maia, Maia, Portugal"},{"name":"Department of Rehabilitation and Optimization of Performance (DROP), Futebol Clube Famalic\u00e3o - Futebol SAD, Famalic\u00e3o, Portugal"},{"name":"FSI Lab, Football Science Institute, Granada, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juliano","family":"Pires","sequence":"additional","affiliation":[{"name":"Department of Rehabilitation and Optimization of Performance (DROP), Futebol Clube Famalic\u00e3o - Futebol SAD, Famalic\u00e3o, Portugal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2038-393X","authenticated-orcid":true,"given":"Jos\u00e9","family":"Afonso","sequence":"additional","affiliation":[{"name":"Centre of Research, Education, Innovation, and Intervention in Sport (CIFI2D), Faculty of Sport, University of Porto, Porto, Portugal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jo\u00e3o L.","family":"Mesquita","sequence":"additional","affiliation":[{"name":"Centre of Research, Education, Innovation, and Intervention in Sport (CIFI2D), Faculty of Sport, University of Porto, Porto, Portugal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5336-3652","authenticated-orcid":true,"given":"F\u00e1bio Y.","family":"Nakamura","sequence":"additional","affiliation":[{"name":"Research Center in Sports Sciences, Health Sciences and Human Development (CIDESD), University of Maia, Maia, Portugal"},{"name":"FSI Lab, Football Science Institute, Granada, Spain"},{"name":"Graduate Program in Physical Education, Federal University of Pernambuco, Recife, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"100","reference":[{"issue":"12","key":"r1","series-title":"Int J Sports Med","doi-asserted-by":"publisher","first-page":"1018","DOI":"10.1055\/s-2007-965158","article-title":"Variation in top level soccer match performance","volume":"28","author":"Rampinini E","year":"2007","unstructured":"Rampinini E, Coutts AJ, Castagna C, Sassi R, Impellizzeri FM. Variation in top level soccer match performance. Int J Sports Med. 2007;28(12):1018\u20131024. doi:10.1055\/s-2007-965158"},{"issue":"11","key":"r2","series-title":"Eur J Sport Sci","doi-asserted-by":"publisher","first-page":"1627","DOI":"10.1002\/ejsc.12209","article-title":"Contextualised physical metrics: the physical demands vary with phase of play during elite soccer match play","volume":"24","author":"Jerome BWC","year":"2024","unstructured":"Jerome BWC, Stoeckl M, Mackriell B, Dawson CW, Fong DTP, Folland JP. Contextualised physical metrics: the physical demands vary with phase of play during elite soccer match play. Eur J Sport Sci. 2024;24(11):1627\u20131638. doi:10.1002\/ejsc.12209"},{"issue":"11","key":"r3","series-title":"Sports Med","doi-asserted-by":"publisher","first-page":"2549","DOI":"10.1007\/s40279-018-0965-6","article-title":"The use of microtechnology to quantify the peak match demands of the football codes: a systematic review","volume":"48","author":"Whitehead S","year":"2018","unstructured":"Whitehead S, Till K, Weaving D, Jones B. The use of microtechnology to quantify the peak match demands of the football codes: a systematic review. Sports Med. 2018;48(11):2549\u20132575. doi:10.1007\/s40279-018-0965-6"},{"issue":"2","key":"r4","series-title":"Biol Sport","doi-asserted-by":"publisher","first-page":"553","DOI":"10.5114\/biolsport.2023.116450","article-title":"Monitoring physical match performance relative to peak locomotor demands: implications for training professional soccer players","volume":"40","author":"Oliva-Lozano JM","year":"2023","unstructured":"Oliva-Lozano JM, Riboli A, Fortes V, Muyor JM. Monitoring physical match performance relative to peak locomotor demands: implications for training professional soccer players. Biol Sport. 2023;40(2):553\u2013560. doi:10.5114\/biolsport.2023.116450"},{"issue":"16","key":"r5","series-title":"J Sports Sci","doi-asserted-by":"publisher","first-page":"1850","DOI":"10.1080\/02640414.2021.1902138","article-title":"Analysis of the worst-case scenarios in an elite football team: towards a better understanding and application","volume":"39","author":"Novak AR","year":"2021","unstructured":"Novak AR, Impellizzeri FM, Trivedi A, Coutts AJ, McCall A. Analysis of the worst-case scenarios in an elite football team: towards a better understanding and application. J Sports Sci. 2021;39(16):1850\u20131859. doi:10.1080\/02640414.2021.1902138"},{"issue":"1","key":"r6","series-title":"Strength Cond J","doi-asserted-by":"publisher","first-page":"86","DOI":"10.1519\/SSC.0000000000000859","article-title":"The complexity of defining and assessing the most demanding periods of play in team sports: a current opinion","volume":"47","author":"Lino-Mesquita J","year":"2025","unstructured":"Lino-Mesquita J, Baptista I, Nakamura FY, et al. The complexity of defining and assessing the most demanding periods of play in team sports: a current opinion. Strength Cond J. 2025;47(1):86\u201394. doi:10.1519\/SSC.0000000000000859"},{"key":"r7","series-title":"J Hum Kinet","doi-asserted-by":"publisher","first-page":"231","DOI":"10.5114\/jhk\/170838","article-title":"A narrative review of the most demanding scenarios in basketball: current trends and future directions","volume":"89","author":"P\u00e9rez-Chao EA","year":"2023","unstructured":"P\u00e9rez-Chao EA, Portes R, G\u00f3mez M\u00c1, Parmar N, Lorenzo A, Jim\u00e9nez S\u00e1iz SL. A narrative review of the most demanding scenarios in basketball: current trends and future directions. J Hum Kinet. 2023;89:231\u2013245. doi:10.5114\/jhk\/170838"},{"issue":"3","key":"r8","series-title":"Biol Sport","doi-asserted-by":"publisher","first-page":"695","DOI":"10.5114\/biolsport.2022.107022","article-title":"Players\u2019 performance during worst-case scenarios in professional soccer matches: a systematic review","volume":"39","author":"Rico-Gonz\u00e1lez M","year":"2022","unstructured":"Rico-Gonz\u00e1lez M, Oliveira R, Palucci Vieira LH, Pino-Ortega J, Clemente FM. Players\u2019 performance during worst-case scenarios in professional soccer matches: a systematic review. Biol Sport. 2022;39(3):695\u2013713. doi:10.5114\/biolsport.2022.107022"},{"issue":"8","key":"r9","series-title":"J Sci Med Sport","doi-asserted-by":"publisher","first-page":"764","DOI":"10.1016\/j.jsams.2020.01.002","article-title":"A comparison of rolling averages versus discrete time epochs for assessing the worst-case scenario locomotor demands of professional soccer match-play","volume":"23","author":"Fereday K","year":"2020","unstructured":"Fereday K, Hills SP, Russell M, et al. A comparison of rolling averages versus discrete time epochs for assessing the worst-case scenario locomotor demands of professional soccer match-play. J Sci Med Sport. 2020;23(8):764\u2013769. doi:10.1016\/j.jsams.2020.01.002"},{"issue":"3","key":"r10","series-title":"Biol Sport","doi-asserted-by":"publisher","first-page":"325","DOI":"10.5114\/biolsport.2021.99706","article-title":"Differences in worst-case scenarios calculated by fixed length and rolling average methods in professional soccer match-play","volume":"38","author":"Oliva-Lozano JM","year":"2021","unstructured":"Oliva-Lozano JM, Mart\u00edn-Fuentes I, Fortes V, Muyor JM. Differences in worst-case scenarios calculated by fixed length and rolling average methods in professional soccer match-play. Biol Sport. 2021;38(3):325\u2013331. doi:10.5114\/biolsport.2021.99706"},{"issue":"2","key":"r11","series-title":"Int J Sports Physiol Perform","doi-asserted-by":"publisher","first-page":"183","DOI":"10.1123\/ijspp.7.2.183","article-title":"Current match-analysis techniques\u2019 underestimation of intense periods of high-velocity running","volume":"7","author":"Varley MC","year":"2012","unstructured":"Varley MC, Elias GP, Aughey RJ. Current match-analysis techniques\u2019 underestimation of intense periods of high-velocity running. Int J Sports Physiol Perform. 2012;7(2):183\u2013185. doi:10.1123\/ijspp.7.2.183"},{"issue":"10","key":"r12","series-title":"J Strength Cond Res","doi-asserted-by":"publisher","first-page":"2918","DOI":"10.1519\/JSC.0000000000002728","article-title":"Running intensities in elite youth soccer by age and position","volume":"32","author":"Duthie GM","year":"2018","unstructured":"Duthie GM, Thornton HR, Delaney JA, Connolly DR, Serpiello FR. Running intensities in elite youth soccer by age and position. J Strength Cond Res. 2018;32(10):2918\u20132924. doi:10.1519\/JSC.0000000000002728"},{"issue":"8","key":"r13","series-title":"Int J Sports Physiol Perform","doi-asserted-by":"publisher","first-page":"836","DOI":"10.1123\/ijspp.2024-0038","article-title":"Defining worst-case-scenario thresholds in soccer: intensity versus volume","volume":"19","author":"Mandorino M","year":"2024","unstructured":"Mandorino M, Lacome M. Defining worst-case-scenario thresholds in soccer: intensity versus volume. Int J Sports Physiol Perform. 2024;19(8):836\u2013840. doi:10.1123\/ijspp.2024-0038"},{"issue":"3","key":"r14","series-title":"PLoS One","doi-asserted-by":"publisher","first-page":"e0277901","DOI":"10.1371\/journal.pone.0277901","article-title":"Peak match acceleration demands differentiate between elite youth and professional football players","volume":"18","author":"Thoseby B","year":"2023","unstructured":"Thoseby B, Govus AD, Clarke AC, Middleton KJ, Dascombe BJ. Peak match acceleration demands differentiate between elite youth and professional football players. PLoS One. 2023;18(3):e0277901. doi:10.1371\/journal.pone.0277901"},{"issue":"2","key":"r15","series-title":"Res Q Exerc Sport","doi-asserted-by":"publisher","first-page":"326","DOI":"10.1080\/02701367.2019.1669766","article-title":"Analysis of physical demands during youth soccer match-play: considerations of sampling method and epoch length","volume":"91","author":"Doncaster G","year":"2020","unstructured":"Doncaster G, Page R, White P, Svenson R, Twist C. Analysis of physical demands during youth soccer match-play: considerations of sampling method and epoch length. Res Q Exerc Sport. 2020;91(2):326\u2013334. doi:10.1080\/02701367.2019.1669766"},{"issue":"4","key":"r16","series-title":"Biol Sport","doi-asserted-by":"publisher","first-page":"429","DOI":"10.5114\/biolsport.2020.97067","article-title":"Worst case scenario match analysis and contextual variables in professional soccer players: a longitudinal study","volume":"37","author":"Oliva-Lozano JM","year":"2020","unstructured":"Oliva-Lozano JM, Rojas-Valverde D, G\u00f3mez-Carmona CD, Fortes V, Pino-Ortega J. Worst case scenario match analysis and contextual variables in professional soccer players: a longitudinal study. Biol Sport. 2020;37(4):429\u2013436. doi:10.5114\/biolsport.2020.97067"},{"issue":"7","key":"r17","series-title":"Int J Sports Physiol Perform","doi-asserted-by":"publisher","first-page":"986","DOI":"10.1123\/ijspp.2024-0441","article-title":"Analysis of the most intense periods during elite soccer matches: effect of game location and playing position","volume":"20","author":"Gualtieri A","year":"2025","unstructured":"Gualtieri A, Angonese M, Maddiotto M, Rampinini E, Ferrari Bravo D, Beato M. Analysis of the most intense periods during elite soccer matches: effect of game location and playing position. Int J Sports Physiol Perform. 2025;20(7):986\u2013992. doi:10.1123\/ijspp.2024-0441"},{"issue":"6","key":"r18","series-title":"J Sports Sci","doi-asserted-by":"publisher","first-page":"547","DOI":"10.1080\/02640414.2023.2227539","article-title":"External and internal maximal intensity periods of elite youth male soccer matches","volume":"41","author":"Kim S","year":"2023","unstructured":"Kim S, Emmonds S, Bower P, Weaving D. External and internal maximal intensity periods of elite youth male soccer matches. J Sports Sci. 2023;41(6):547\u2013556. doi:10.1080\/02640414.2023.2227539"},{"issue":"1","key":"r19","series-title":"Sports","doi-asserted-by":"publisher","first-page":"1","DOI":"10.3390\/sports8010001","article-title":"Positional differences in peak- and accumulated- training load relative to match load in elite football","volume":"8","author":"Baptista I","year":"2019","unstructured":"Baptista I, Johansen D, Figueiredo P, Rebelo A, Pettersen SA. Positional differences in peak- and accumulated- training load relative to match load in elite football. Sports. 2019;8(1):1. doi:10.3390\/sports8010001"},{"key":"r20","series-title":"J Hum Kinet","doi-asserted-by":"publisher","DOI":"10.5114\/jhk\/209540","article-title":"Sprint and high-speed running in soccer: should we use absolute or normalized thresholds?","author":"Pimenta R","year":"2025","unstructured":"Pimenta R, Antunes H, Maia F, Ribeiro J, Nakamura FY. Sprint and high-speed running in soccer: should we use absolute or normalized thresholds? J Hum Kinet. Published Online December 10, 2025. doi:10.5114\/jhk\/209540"},{"issue":"2","key":"r21","series-title":"Sci Med Footb","doi-asserted-by":"publisher","first-page":"86","DOI":"10.1080\/24733938.2017.1383623","article-title":"Modelling the decrement in running intensity within professional soccer players","volume":"2","author":"Delaney JA","year":"2018","unstructured":"Delaney JA, Thornton HR, Rowell AE, Dascombe BJ, Aughey RJ, Duthie GM. Modelling the decrement in running intensity within professional soccer players. Sci Med Footb. 2018;2(2):86\u201392. doi:10.1080\/24733938.2017.1383623"},{"issue":"5","key":"r22","series-title":"Int J Sports Physiol Perform","doi-asserted-by":"publisher","first-page":"480","DOI":"10.1123\/ijspp.2023-0312","article-title":"The quantification of physical performance and internal training load in youth male soccer players during preseason","volume":"19","author":"Martinho DV","year":"2024","unstructured":"Martinho DV, Rebelo A, Field A, et al. The quantification of physical performance and internal training load in youth male soccer players during preseason. Int J Sports Physiol Perform. 2024;19(5):480\u2013486. doi:10.1123\/ijspp.2023-0312"},{"issue":"15","key":"r23","series-title":"J Sports Sci","doi-asserted-by":"publisher","first-page":"1410","DOI":"10.1080\/02640414.2024.2391648","article-title":"Training loads and microcycle periodisation in Italian Serie A youth soccer players","volume":"42","author":"Franceschi A","year":"2024","unstructured":"Franceschi A, Robinson MA, Owens DJ, et al. Training loads and microcycle periodisation in Italian Serie A youth soccer players. J Sports Sci. 2024;42(15):1410\u20131420. doi:10.1080\/02640414.2024.2391648"},{"issue":"2","key":"r24","series-title":"Int J Sports Physiol Perform","doi-asserted-by":"publisher","first-page":"317","DOI":"10.1123\/ijspp.2021-0451","article-title":"Defining training and performance caliber: a participant classification framework","volume":"17","author":"McKay AKA","year":"2022","unstructured":"McKay AKA, Stellingwerff T, Smith ES, et al. Defining training and performance caliber: a participant classification framework. Int J Sports Physiol Perform. 2022;17(2):317\u2013331. doi:10.1123\/ijspp.2021-0451"},{"issue":"4","key":"r25","series-title":"J Sports Med Phys Fitness","first-page":"443","article-title":"Activity profile of elite goalkeepers during football match-play","volume":"48","author":"Di Salvo V","year":"2008","unstructured":"Di Salvo V, Benito PJ, Calder\u00f3n FJ, Di Salvo M, Pigozzi F. Activity profile of elite goalkeepers during football match-play. J Sports Med Phys Fitness. 2008;48(4):443\u2013446."},{"issue":"4","key":"r26","series-title":"Biol Sport","doi-asserted-by":"publisher","first-page":"985","DOI":"10.5114\/biolsport.2022.110745","article-title":"Temporal distribution of peak running demands relative to match minutes in elite football","volume":"39","author":"Thoseby B","year":"2022","unstructured":"Thoseby B, Govus AD, Clarke AC, Middleton KJ, Dascombe BJ. Temporal distribution of peak running demands relative to match minutes in elite football. Biol Sport. 2022;39(4):985\u2013994. doi:10.5114\/biolsport.2022.110745"},{"issue":"1","key":"r27","series-title":"BMC Sports Sci Med Rehabil","doi-asserted-by":"publisher","first-page":"296","DOI":"10.1186\/s13102-025-01335-8","article-title":"Validity and reliability of catapult vector S7 GNSS units in distance measurement","volume":"17","author":"Ocak MF","year":"2025","unstructured":"Ocak MF, \u015eent\u00fcrk D, Akyildiz Z. Validity and reliability of catapult vector S7 GNSS units in distance measurement. BMC Sports Sci Med Rehabil. 2025;17(1):296. doi:10.1186\/s13102-025-01335-8"},{"issue":"3","key":"r28","series-title":"J Sci Med Sport","doi-asserted-by":"publisher","first-page":"204","DOI":"10.1016\/j.jsams.2023.12.004","article-title":"The validity of raw custom-processed global navigation satellite systems data during straight-line sprinting across multiple days","volume":"27","author":"Crang ZL","year":"2024","unstructured":"Crang ZL, Duthie G, Cole MH, Weakley J, Hewitt A, Johnston RD. The validity of raw custom-processed global navigation satellite systems data during straight-line sprinting across multiple days. J Sci Med Sport. 2024;27(3):204\u2013210. doi:10.1016\/j.jsams.2023.12.004"},{"issue":"10","key":"r29","series-title":"Int J Sports Physiol Perform","doi-asserted-by":"publisher","first-page":"1527","DOI":"10.1123\/ijspp.2021-0339","article-title":"Concurrent validity and reliability of sprinting force-velocity profile assessed with GPS devices in elite athletes","volume":"17","author":"Clavel P","year":"2022","unstructured":"Clavel P, Leduc C, Morin JB, et al. Concurrent validity and reliability of sprinting force-velocity profile assessed with GPS devices in elite athletes. Int J Sports Physiol Perform. 2022;17(10):1527\u20131531. doi:10.1123\/ijspp.2021-0339"},{"key":"r30","series-title":"Front Physiol","doi-asserted-by":"publisher","first-page":"228","DOI":"10.3389\/fphys.2018.00228","article-title":"Validity and reliability of 10-Hz global positioning system to assess in-line movement and change of direction","volume":"9","author":"Nikolaidis PT","year":"2018","unstructured":"Nikolaidis PT, Clemente FM, van der Linden CMI, Rosemann T, Knechtle B. Validity and reliability of 10-Hz global positioning system to assess in-line movement and change of direction. Front Physiol. 2018;9:228. doi:10.3389\/fphys.2018.00228"},{"issue":"2","key":"r31","series-title":"Res Sports Med","doi-asserted-by":"publisher","first-page":"101","DOI":"10.1080\/15438627.2021.1943390","article-title":"When do soccer players experience the most demanding passages of match play? A longitudinal study in a professional team","volume":"31","author":"Oliva-Lozano JM","year":"2023","unstructured":"Oliva-Lozano JM, Mart\u00ednez-Puertas H, Fortes V, Muyor JM. When do soccer players experience the most demanding passages of match play? A longitudinal study in a professional team. Res Sports Med. 2023;31(2):101\u2013111. doi:10.1080\/15438627.2021.1943390"},{"issue":"1","key":"r32","series-title":"Med Sci Sports Exerc","doi-asserted-by":"publisher","first-page":"3","DOI":"10.1249\/MSS.0b013e31818cb278","article-title":"Progressive statistics for studies in sports medicine and exercise science","volume":"41","author":"Hopkins WG","year":"2009","unstructured":"Hopkins WG, Marshall SW, Batterham AM, Hanin J. Progressive statistics for studies in sports medicine and exercise science. Med Sci Sports Exerc. 2009;41(1):3\u201313. doi:10.1249\/MSS.0b013e31818cb278"},{"issue":"1","key":"r33","series-title":"Int J Sports Med","first-page":"34","article-title":"Acceleration profiles in elite Australian soccer","volume":"34","author":"Varley MC","year":"2013","unstructured":"Varley MC, Aughey RJ. Acceleration profiles in elite Australian soccer. Int J Sports Med. 2013;34(1):34\u201339."},{"issue":"1","key":"r34","series-title":"Int J Sports Sci Coach","doi-asserted-by":"publisher","first-page":"134","DOI":"10.1177\/17479541211018771","article-title":"Small steps, or giant leaps?\u201d Comparing game demands of U23, U18, and U16 English academy soccer and their associations with speed and endurance","volume":"17","author":"Smalley B","year":"2022","unstructured":"Smalley B, Bishop C, Maloney SJ. Small steps, or giant leaps?\u201d Comparing game demands of U23, U18, and U16 English academy soccer and their associations with speed and endurance. Int J Sports Sci Coach. 2022;17(1):134\u2013142. doi:10.1177\/17479541211018771"},{"issue":"4","key":"r35","series-title":"J Sports Sci Med","first-page":"563","article-title":"Positional differences in the most demanding passages of play in football competition","volume":"17","author":"Mart\u00edn-Garc\u00eda A","year":"2018","unstructured":"Mart\u00edn-Garc\u00eda A, Casamichana D, D\u00edaz AG, Cos F, Gabbett TJ. Positional differences in the most demanding passages of play in football competition. J Sports Sci Med. 2018;17(4):563\u2013570."},{"issue":"7","key":"r36","series-title":"J Sports Sci","doi-asserted-by":"publisher","first-page":"519","DOI":"10.1080\/0264041031000071182","article-title":"Match performance of high-standard soccer players with special reference to development of fatigue","volume":"21","author":"Mohr M","year":"2003","unstructured":"Mohr M, Krustrup P, Bangsbo J. Match performance of high-standard soccer players with special reference to development of fatigue. J Sports Sci. 2003;21(7):519\u2013528. doi:10.1080\/0264041031000071182"},{"issue":"1","key":"r37","series-title":"Eur J Sport Sci","doi-asserted-by":"publisher","first-page":"51","DOI":"10.1080\/17461391.2010.481334","article-title":"Comparison of physical and technical performance in European soccer match-play: FA Premier League and La Liga","volume":"11","author":"Dellal A","year":"2011","unstructured":"Dellal A, Chamari K, Wong DP, et al. Comparison of physical and technical performance in European soccer match-play: FA Premier League and La Liga. Eur J Sport Sci. 2011;11(1):51\u201359. doi:10.1080\/17461391.2010.481334"},{"issue":"4","key":"r38","series-title":"Biol Sport","doi-asserted-by":"publisher","first-page":"973","DOI":"10.5114\/biolsport.2022.112083","article-title":"Contextualised peak periods of play in English Premier League matches","volume":"39","author":"Ju W","year":"2022","unstructured":"Ju W, Doran D, Hawkins R, et al. Contextualised peak periods of play in English Premier League matches. Biol Sport. 2022;39(4):973\u2013983. doi:10.5114\/biolsport.2022.112083"},{"issue":"2","key":"r39","series-title":"Biol Sport","doi-asserted-by":"publisher","first-page":"95","DOI":"10.5114\/biolsport.2025.142642","article-title":"Physical and technical performance in and after the worst-case scenario in matches of the Chinese Super League of soccer","volume":"42","author":"Fang Z","year":"2025","unstructured":"Fang Z, Wang Z, Li X, G\u00f3mez MA, Liu H. Physical and technical performance in and after the worst-case scenario in matches of the Chinese Super League of soccer. Biol Sport. 2025;42(2):95\u2013103. doi:10.5114\/biolsport.2025.142642"}],"container-title":["International Journal of Sports Physiology and Performance"],"original-title":[],"link":[{"URL":"https:\/\/journals.humankinetics.com\/view\/journals\/ijspp\/21\/10\/article-p1149.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.humankinetics.com\/downloadpdf\/journals\/ijspp\/21\/10\/article-p1149.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/journals.humankinetics.com\/downloadpdf\/journals\/ijspp\/21\/10\/article-p1149.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T15:20:46Z","timestamp":1790695246000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.humankinetics.com\/view\/journals\/ijspp\/21\/10\/article-p1149.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,10,1]]},"references-count":39,"journal-issue":{"issue":"10"},"URL":"https:\/\/doi.org\/10.1123\/ijspp.2025-0594","relation":{},"ISSN":["1555-0265","1555-0273"],"issn-type":[{"value":"1555-0265","type":"print"},{"value":"1555-0273","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,10,1]]}}}