Sleep quality components exhibit a unique association with muscular strength and cardiorespiratory fitness in university staff

Sleep quality components exhibit a unique association with muscular strength and cardiorespiratory fitness in university staff | 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 Sleep quality components exhibit a unique association with muscular strength and cardiorespiratory fitness in university staff Volga Hovsepian, Vazgen Minasian, Zohre Shanazari This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7291095/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract This study assessed subjective sleep quality using the Pittsburgh Sleep Quality Index (PSQI) and explored its associations with health-related physical fitness and socioeconomic status among the university personnel. Sleep quality, anthropometric, and physical fitness parameters were measured in 167 personnel of the University of Isfahan. Participants consisted of the faculty members and staff were classified as good or poor sleepers based on PSQI score. Group differences were analyzed using independent t-tests, with correlations and linear regression to assess associations between sleep and fitness variables. Poor sleep quality was observed in 40.1% of participants. sleep disturbances were significantly more common among staff, than the faculty members (80% vs. 19.4%). Greater daily physical activity was associated with better sleep. Total sleep quality correlated significantly with body fat percentage, resting heart rate, handgrip strength, trunk strength, push-ups, VO ₂max and socioeconomic status. More specifically, sleep latency and duration onset is more closely related to muscular strength, while greater sleep disturbances are more strongly associated with cardiovascular health indicators. sleep quality Pittsburgh Sleep Quality Index(PSQI) physical fitness handgrip strength VO2max socioeconomic status Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted 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. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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-7291095","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":537035469,"identity":"a5059dae-223a-4d81-b6ba-436fc06bb46b","order_by":0,"name":"Volga Hovsepian","email":"","orcid":"","institution":"University of Isfahan","correspondingAuthor":false,"prefix":"","firstName":"Volga","middleName":"","lastName":"Hovsepian","suffix":""},{"id":537035470,"identity":"9baa0e76-eb0e-49d1-acd3-8123796af061","order_by":1,"name":"Vazgen Minasian","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA5UlEQVRIiWNgGAWjYJCCA0DMw8DAfADMYwOTBkRpYUsgXgsU8BCnjMHgAHfi4YKaOhn+2T2fPxfuYUjsY2B++IGh4B4eLbwbDs84dphH4s7ZbdIznjEktjGwGUswGBTj1CLZANTCw3aAh+FG7jZmngMgLQxmQKMSCGj5V8cjfyPn8WeIFvZveLXwMwC18LYx8xjcyGGQhmjhwW8LPzNIS99hHsMbaWbSMw5IGAO1F0sk4NHCxt67+TPPtzp7uRvJjz8XHLCRnd/evvHDhz+4tTAwo7IlICJ4NODWPgpGwSgYBaMADgBDukkOHBzgbwAAAABJRU5ErkJggg==","orcid":"","institution":"University of Isfahan","correspondingAuthor":true,"prefix":"","firstName":"Vazgen","middleName":"","lastName":"Minasian","suffix":""},{"id":537035476,"identity":"508e0c9f-049a-4564-b1d1-eea900394019","order_by":2,"name":"Zohre Shanazari","email":"","orcid":"","institution":"University of Isfahan","correspondingAuthor":false,"prefix":"","firstName":"Zohre","middleName":"","lastName":"Shanazari","suffix":""}],"badges":[],"createdAt":"2025-08-04 12:23:29","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-7291095/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-7291095/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":95324669,"identity":"7575856c-d9d7-4dc6-9562-1651e2334ce5","added_by":"auto","created_at":"2025-11-06 17:29:31","extension":"docx","order_by":0,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":59261,"visible":true,"origin":"","legend":"","description":"","filename":"manuscriptwithautherditails.docx","url":"https://assets-eu.researchsquare.com/files/rs-7291095/v1/fe32258603947af740848022.docx"},{"id":95324670,"identity":"e3f14cd4-bda9-4a1e-8add-e0f0444d5279","added_by":"auto","created_at":"2025-11-06 17:29:31","extension":"json","order_by":1,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":4939,"visible":true,"origin":"","legend":"","description":"","filename":"52926f036a2a42bd9cdfa8f8816317a2.json","url":"https://assets-eu.researchsquare.com/files/rs-7291095/v1/a190635b392ba8c9c3cde643.json"},{"id":95324672,"identity":"4679432e-01e1-4c5b-953e-c6092a39b952","added_by":"auto","created_at":"2025-11-06 17:29:31","extension":"xml","order_by":2,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":82862,"visible":true,"origin":"","legend":"","description":"","filename":"52926f036a2a42bd9cdfa8f8816317a21enriched.xml","url":"https://assets-eu.researchsquare.com/files/rs-7291095/v1/6a4ac8ef0bdb28bc94361a03.xml"},{"id":95523601,"identity":"2a504569-32d8-445b-88a0-1530b61cef2a","added_by":"auto","created_at":"2025-11-10 09:59:05","extension":"xml","order_by":3,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":80738,"visible":true,"origin":"","legend":"","description":"","filename":"52926f036a2a42bd9cdfa8f8816317a21structuring.xml","url":"https://assets-eu.researchsquare.com/files/rs-7291095/v1/cc23bb03847457ea396bea92.xml"},{"id":95324671,"identity":"02fb3523-4479-40d4-9b97-07e01002e0a4","added_by":"auto","created_at":"2025-11-06 17:29:31","extension":"html","order_by":4,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":85706,"visible":true,"origin":"","legend":"","description":"","filename":"earlyproof.html","url":"https://assets-eu.researchsquare.com/files/rs-7291095/v1/38e40a3cec62807987a76259.html"},{"id":97126961,"identity":"f4e9696f-47da-4556-8a14-64254a7b4c08","added_by":"auto","created_at":"2025-12-01 08:25:26","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":441131,"visible":true,"origin":"","legend":"","description":"","filename":"manuscriptwithautherditails.pdf","url":"https://assets-eu.researchsquare.com/files/rs-7291095/v1_covered_6c6fe191-a451-4b08-8f51-c81a7598e6a9.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Sleep quality components exhibit a unique association with muscular strength and cardiorespiratory fitness in university staff","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"sleep quality, Pittsburgh Sleep Quality Index(PSQI), physical fitness, handgrip strength, VO2max, socioeconomic status","lastPublishedDoi":"10.21203/rs.3.rs-7291095/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-7291095/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eThis study assessed subjective sleep quality using the Pittsburgh Sleep Quality Index (PSQI) and explored its associations with health-related physical fitness and socioeconomic status among the university personnel. Sleep quality, anthropometric, and physical fitness parameters were measured in 167 personnel of the University of Isfahan. Participants consisted of the faculty members and staff were classified as good or poor sleepers based on PSQI score. Group differences were analyzed using independent t-tests, with correlations and linear regression to assess associations between sleep and fitness variables.\u003c/p\u003e\u003cp\u003ePoor sleep quality was observed in 40.1% of participants. sleep disturbances were significantly more common among staff, than the faculty members (80% vs. 19.4%). Greater daily physical activity was associated with better sleep. Total sleep quality correlated significantly with body fat percentage, resting heart rate, handgrip strength, trunk strength, push-ups, VO\u003csub\u003e₂max\u003c/sub\u003e and socioeconomic status. More specifically, sleep latency and duration onset is more closely related to muscular strength, while greater sleep disturbances are more strongly associated with cardiovascular health indicators.\u003c/p\u003e","manuscriptTitle":"Sleep quality components exhibit a unique association with muscular strength and cardiorespiratory fitness in university staff","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-11-06 17:29:27","doi":"10.21203/rs.3.rs-7291095/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"3c54f286-f00d-498a-8a09-b0ee8c379956","owner":[],"postedDate":"November 6th, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2025-12-01T08:25:11+00:00","versionOfRecord":[],"versionCreatedAt":"2025-11-06 17:29:27","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-7291095","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-7291095","identity":"rs-7291095","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}