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Twenty-five subjects with lower extremity injuries performed SEBT twice with an approximately seven-day interval, using Star Performer™ to record three trials per direction and compare averaged reach distances with tape-measure values. Results show excellent reliability across eight SEBT directions and strong correlations with tape measurements, with clinically informative minimal detectable change estimates.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/the-reliability-and-validity-of-star-performer-a-computerized-tool-for-quantifying-the-star-excursion-balance-test/269238/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/the-reliability-and-validity-of-star-performer-a-computerized-tool-for-quantifying-the-star-excursion-balance-test/269238.png","ImageObject",300,407,{"name":92,"@type":93},"Caleb Sterling","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-31","2026-09-15",true,{"@type":102,"interactionType":103,"userInteractionCount":34},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What does the Star Performer™ device measure in this study?","Question",{"text":112,"@type":113},"The Star Performer™ automates SEBT measurement by recording three reach-distance trials per test direction and providing averaged reaching distances for analysis.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How was test-retest reliability assessed?",{"text":117,"@type":113},"Test-retest reliability was evaluated using intra-class correlation coefficients (ICC 3,1) between averaged reach distances from two sessions separated by about seven days.",{"name":119,"@type":110,"acceptedAnswer":120},"How did the study evaluate validity of Star Performer™?",{"text":121,"@type":113},"Validity was assessed by comparing averaged reach distances from Star Performer™ with measurements obtained from a traditional tape measure for each SEBT direction.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},269238,1790446577,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":34,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145,"preview_page_count":4},962084925290,"https://ap-avatar.wpscdn.com/davatar_085a072bc5b1113ac321206ff7593b45","Original Research  \nThe Reliability and Validity of Star Performer™ a Computerized tool for Quantifying the Star Excursion Balance Test  \nYongni Zhang1a, Yifan Liu1, Tao Shang1, Lina Jian2, Jiayou Wang3, Scot D. Abbott4, Jason Scibek1, Kelton D Mehls1, Christopher R Carcia5, RobRoy L Martin1  \n1 Duquesne University, 2 Fourth Hospital of Hebei Medical University, 3 Shanghai Yangzhi Rehabilitation Hospital, 4 GDE Technologies, 5 Colorado Mesa University  \nKeywords: Balance, Minimal detectable change, Functional performance test, Rehabilitation Engineering  \n[https://doi.org/10.26603/001c.137953](https://doi.org/10.26603/001c.137953)  \nInternational Journal of Sports Physical Therapy Vol. 20, Issue 6, 2025  \nBackground  \nThe Star Excursion Balance Test (SEBT) is well recognized in both clinical and research settings as a reliable, valid, and responsive assessment. However, the SEBT is time consuming and inconvenient. To address this limitation, a new device called the Star Performer™ has been developed to improve the efficiency of SEBT.  \nPurpose  \nTo investigate the test-retest reliability of Star Performer™ device and compare its validity to traditional SEBT methods.  \nStudy Design  \nCross-sectional study  \nMethods  \nTwenty-five subjects with lower extremity injuries participated in this study. Each subject performed the SEBT twice, with approximately seven days between tests. The Star Performer™ device and a tape measure were used to record three test trials for each test direction with the average of the three reach distances being used for analysis.  \nTest-retest reliability was evaluated by calculating the intra-class correlation coefficients (ICC 3,1) between the average reaching distance for each SEBT direction across the two testing sessions. To assess the validity of the Star Performer™ device, the averaged reaching distance for each SEBT direction was compared with the measurements obtained from the tape measure.  \nResults  \nSeventeen females (68%) and eight males (32%) with lower extremity injuries (mean age= 23.6 years, SD=3.9, range from 19-35) participated. The Star Performer™ demonstrated excellent test-retest reliability, with ICC 3,1 values ranging from 0.85 to 0.93 for the eight SEBT directions. The minimal detectable change at the 95% confidence level (MDC95) ranged from 2.56 to 5.37% for the eight directions. The Pearson correlation coefficients between the Star Performer™ and tape measure recordings ranged from 0.90 to 0.94 for the eight directions.  \na Corresponding author: Yongni Zhang, PT1  \n111A Health Sciences Building 600 Forbes Ave Pittsburgh, PA 15282  \nEmail: [zhzh19920903@163.com](zhzh19920903@163.com)  \nConclusion  \nThis study provides evidence supporting the test-retest reliability and validity of the Star Performer™ for assessing SEBT performance. These findings suggest that Star Performer™ offers a precise and efficient approach to evaluate SEBT performance in individuals with lower extremity injuries.  \nLevel of Evidence  \nLevel 3b  \nINTRODUCTION  \nOver one million sports-related lower extremity injuries are estimated to occur every year.1 These lower extremity injuries can adversely impact performance and lead to disability due to pain, weakness, loss of motion, impaired balance, and diminished neuromuscular control.2‑7 The American Physical Therapy Association clinical practice guidelines recommend functional performance tests for assessing impairments of body function and for predicting lower extremity injuries.2‑7 Among these tests, the Star Excursion Balance Test (SEBT) is commonly used by researchers and clinicians.7‑9  \nThe SEBT is a functional test that requires components such as strength, range of motion, balance, and neuromuscular control, with evidence supporting its reliability, validity, and responsiveness.8‑16 The SEBT has been found to be useful for assessing functional performance in individuals with groin pain, femoroacetabular impingement (FAI), hip arthroscopic surgery, gre","cbCaiadvpBqNKlTK","https://ap.wps.com/l/cbCaiadvpBqNKlTK","pdf",2653745,14,"English","# Background\n# Purpose\n# Study Design\n# Methods\n# Results\n# Conclusion\n# Level of Evidence\n# Introduction","[{\"question\":\"What does the Star Performer™ device measure in this study?\",\"answer\":\"The Star Performer™ automates SEBT measurement by recording three reach-distance trials per test direction and providing averaged reaching distances for analysis.\"},{\"question\":\"How was test-retest reliability assessed?\",\"answer\":\"Test-retest reliability was evaluated using intra-class correlation coefficients (ICC 3,1) between averaged reach distances from two sessions separated by about seven days.\"},{\"question\":\"How did the study evaluate validity of Star Performer™?\",\"answer\":\"Validity was assessed by comparing averaged reach distances from Star Performer™ with measurements obtained from a traditional tape measure for each SEBT direction.\"}]","The Reliability and Validity of Star Performer™ - A Computerized Tool for Quantifying the Star Excursion Balance Test | PDF",1789449390,35]