Anthropometric and Motor-Fitness Signatures of Defensive Efficiency in Professional Football Defenders: A Principal Component and Cluster Analysis

Anthropometric and Motor-Fitness Signatures of Defensive Efficiency in Professional Football Defenders: A Principal Component and Cluster Analysis | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Anthropometric and Motor-Fitness Signatures of Defensive Efficiency in Professional Football Defenders: A Principal Component and Cluster Analysis Jeneviv Nene John, Sam Chidi Ibeneme, Gerhard Fortwengel, Emeka Mong, and 5 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8497256/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 13 You are reading this latest preprint version Abstract Background Defensive efficiency is a central determinant of success in professional football, yet defenders’ physical and motor profiles are rarely examined in relation to ecological defensive outcomes, particularly in under-researched professional leagues. This study investigated anthropometric and motor-fitness signatures of defensive efficiency among professional football defenders in the Nigeria Premier Football League (NPFL) using multivariate profiling methods. Methods An observational ecological study was conducted among 36 professional defenders from Enugu Rangers International FC across three competitive seasons (2021/22–2023/24). Standardised anthropometric and motor-fitness assessments (agility, vertical-jump power, reaction time, balance, and coordination) were obtained during pre-season testing. Team-level defensive performance was quantified using ecological indicators derived from official league statistics, including goals conceded per match, defensive success index, points per goal conceded, and goal-prevention rate. Spearman correlations, non-parametric group comparisons, principal component analysis (PCA), and k-means clustering were applied. Results Defenders displayed substantial inter-individual variability despite operating within the same professional environment. Principal component analysis identified three components explaining 72.5% of total variance: (i) body size and mass/composition, (ii) agility–balance, and (iii) explosiveness versus adiposity. K-means clustering based on these components revealed three defender archetypes—high-mass stoppers, mobile coverage defenders, and balanced hybrids. Agility significantly differentiated archetypes (p < 0.05), with mobile coverage defenders demonstrating superior change-of-direction performance. At the ecological level, team defensive indicators showed stable or improving defensive efficiency across seasons. Conclusion Professional football defenders can be meaningfully profiled using integrated anthropometric and motor-fitness dimensions that align with functional defensive roles. Even in data-constrained environments, ecological team-level defensive indicators combined with multivariate profiling offer a practical framework for talent identification, role assignment, and conditioning. This approach provides applied value for professional clubs operating without access to advanced tracking technologies. Defensive performance Anthropometry Motor fitness Football defenders Nigeria Premier Football League Ecological performance analysis Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 05 Feb, 2026 Reviews received at journal 29 Jan, 2026 Reviews received at journal 22 Jan, 2026 Reviews received at journal 22 Jan, 2026 Reviewers agreed at journal 20 Jan, 2026 Reviewers agreed at journal 19 Jan, 2026 Reviewers agreed at journal 13 Jan, 2026 Reviewers agreed at journal 12 Jan, 2026 Reviewers invited by journal 11 Jan, 2026 Editor invited by journal 09 Jan, 2026 Editor assigned by journal 06 Jan, 2026 Submission checks completed at journal 06 Jan, 2026 First submitted to journal 01 Jan, 2026 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-8497256","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":568144523,"identity":"86d0c20b-ae6f-4be6-babe-0317ad54e3d9","order_by":0,"name":"Jeneviv Nene 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Analysis","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":true,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"bmc-sports-science-medicine-and-rehabilitation","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"ssmr","sideBox":"Learn more about [BMC Sports Science, Medicine and Rehabilitation](http://bmcsportsscimedrehabil.biomedcentral.com/)","snPcode":"","submissionUrl":"https://www.editorialmanager.com/ssmr/default.aspx","title":"BMC Sports Science, Medicine and 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This study investigated anthropometric and motor-fitness signatures of defensive efficiency among professional football defenders in the Nigeria Premier Football League (NPFL) using multivariate profiling methods.\u003c/p\u003e\u003ch2\u003eMethods\u003c/h2\u003e \u003cp\u003eAn observational ecological study was conducted among 36 professional defenders from Enugu Rangers International FC across three competitive seasons (2021/22\u0026ndash;2023/24). Standardised anthropometric and motor-fitness assessments (agility, vertical-jump power, reaction time, balance, and coordination) were obtained during pre-season testing. Team-level defensive performance was quantified using ecological indicators derived from official league statistics, including goals conceded per match, defensive success index, points per goal conceded, and goal-prevention rate. Spearman correlations, non-parametric group comparisons, principal component analysis (PCA), and k-means clustering were applied.\u003c/p\u003e\u003ch2\u003eResults\u003c/h2\u003e \u003cp\u003eDefenders displayed substantial inter-individual variability despite operating within the same professional environment. Principal component analysis identified three components explaining 72.5% of total variance: (i) body size and mass/composition, (ii) agility\u0026ndash;balance, and (iii) explosiveness versus adiposity. K-means clustering based on these components revealed three defender archetypes\u0026mdash;high-mass stoppers, mobile coverage defenders, and balanced hybrids. Agility significantly differentiated archetypes (p\u0026thinsp;\u0026lt;\u0026thinsp;0.05), with mobile coverage defenders demonstrating superior change-of-direction performance. At the ecological level, team defensive indicators showed stable or improving defensive efficiency across seasons.\u003c/p\u003e\u003ch2\u003eConclusion\u003c/h2\u003e \u003cp\u003eProfessional football defenders can be meaningfully profiled using integrated anthropometric and motor-fitness dimensions that align with functional defensive roles. Even in data-constrained environments, ecological team-level defensive indicators combined with multivariate profiling offer a practical framework for talent identification, role assignment, and conditioning. This approach provides applied value for professional clubs operating without access to advanced tracking technologies.\u003c/p\u003e","manuscriptTitle":"Anthropometric and Motor-Fitness Signatures of Defensive Efficiency in Professional Football Defenders: A Principal Component and Cluster Analysis","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2026-01-05 06:15:40","doi":"10.21203/rs.3.rs-8497256/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Revision requested","date":"2026-02-05T08:32:08+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2026-01-29T10:36:45+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2026-01-22T22:59:56+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2026-01-22T20:05:25+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"94424962599792028009513604078061227902","date":"2026-01-20T10:56:02+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"245226078139623950171323164877257195889","date":"2026-01-19T12:29:15+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"129769254154262210893130345002303146501","date":"2026-01-13T23:53:59+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"124841914149887653444647635069547921642","date":"2026-01-12T10:43:42+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2026-01-11T21:37:02+00:00","index":"","fulltext":""},{"type":"editorInvited","content":"","date":"2026-01-09T11:39:48+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2026-01-06T13:42:54+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2026-01-06T13:39:58+00:00","index":"","fulltext":""},{"type":"submitted","content":"BMC Sports Science, Medicine and Rehabilitation","date":"2026-01-01T21:58:38+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"bmc-sports-science-medicine-and-rehabilitation","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"ssmr","sideBox":"Learn more about [BMC Sports Science, Medicine and Rehabilitation](http://bmcsportsscimedrehabil.biomedcentral.com/)","snPcode":"","submissionUrl":"https://www.editorialmanager.com/ssmr/default.aspx","title":"BMC Sports Science, Medicine and Rehabilitation","twitterHandle":"BMC_series","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"em","reportingPortfolio":"BMC Series","inReviewEnabled":true,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"238f8bb0-944d-4ee9-a4fa-2e2cb106bfcd","owner":[],"postedDate":"January 5th, 2026","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"under-review","subjectAreas":[],"tags":[],"updatedAt":"2026-04-20T08:11:41+00:00","versionOfRecord":[],"versionCreatedAt":"2026-01-05 06:15:40","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-8497256","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-8497256","identity":"rs-8497256","version":["v1"]},"buildId":"XKTyCvWXoU3ODBz1xrDgd","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}