{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T13:51:16Z","timestamp":1790776276814,"version":"4.1.0"},"reference-count":31,"publisher":"International Journal of Sports Physical Therapy","issue":"5","license":[{"start":{"date-parts":[[2023,10,1]],"date-time":"2023-10-01T00:00:00Z","timestamp":1696118400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"\n Introduction<\/jats:title>\n Recent technological advancements have enabled medical, sport, and fitness professionals to utilize digital tools that assist with conducting movement examinations and screenings. One such advancement has been the implementation of a single camera, markerless, and portable 3D motion capture system designed to obtain ROM measurements for multiple body parts simultaneously. However, the reliability and validity of a markerless 3D motion capture system that uses a single camera has not been established.<\/jats:p>\n <\/jats:sec>\n \n Purpose<\/jats:title>\n The purpose of this study was to investigate the reliability and concurrent validity of this 3D motion capture system compared to a goniometer in assessing ROM of the glenohumeral joint.<\/jats:p>\n <\/jats:sec>\n \n Study Design<\/jats:title>\n Quasi-experimental reliability, convenience sampling.<\/jats:p>\n <\/jats:sec>\n \n Methods\/materials<\/jats:title>\n \n Forty healthy volunteers (mean \u00b1 SD, age 27.4 \u00b1 12.4 years, height 173.4 \u00b1 11.1 cm, weight 72.1 \u00b1 16.2 kg) participated in this study. Intrarater reliability was analyzed by ICC\n (2,k)<\/jats:sub>\n with a 95% CI using two repeated trials for each shoulder movement (flexion, abduction, external rotation, internal rotation) that were recorded simultaneously via two methods: a standard goniometer and a 3D motion capture system. Concurrent validity was analyzed using Pearson Correlation Coefficient (\n r<\/jats:italic>\n ).\n <\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n The intrarater reliability between the two instruments for glenohumeral motions yielded an overall ICC of 0.82 (95% CI: 0.74-0.88) indicating good reliability for both instruments.<\/jats:p>\n The 3D motion capture system demonstrated strong correlations with goniometry for shoulder flexion (r = 0.67), abduction (r = 0.63), and external rotation (r = 0.76), and very strong correlation for shoulder internal rotation (r = 0.84).<\/jats:p>\n <\/jats:sec>\n \n Conclusion<\/jats:title>\n Results from this study indicated that a markerless, single camera, portable 3D motion capture system can be a reliable and valid tool to assess glenohumeral joint ROM in comparison to a standard goniometer.<\/jats:p>\n <\/jats:sec>\n \n Level of Evidence<\/jats:title>\n 3<\/jats:p>\n <\/jats:sec>","DOI":"10.26603\/001c.88003","type":"journal-article","created":{"date-parts":[[2023,10,1]],"date-time":"2023-10-01T11:30:33Z","timestamp":1696159833000},"source":"Crossref","is-referenced-by-count":12,"title":["Reliability and Concurrent Validity of a Markerless, Single Camera, Portable 3D Motion Capture System for Assessment of Glenohumeral Mobility."],"prefix":"10.26603","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1298-5498","authenticated-orcid":false,"given":"Ofra","family":"Pottorf","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/03pm18j10","id-type":"ROR","asserted-by":"publisher"}],"name":"Hofstra University","department":["Allied Health and Kinesiology"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel","family":"Vapne","sequence":"additional","affiliation":[{"name":"PT Solutions Physical Therapy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jamie","family":"Ghigiarelli","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/03pm18j10","id-type":"ROR","asserted-by":"publisher"}],"name":"Hofstra University","department":["Allied Health and Kinesiology"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kaitlyn","family":"Haase","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"11140","published-online":{"date-parts":[[2023,10,1]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"271","DOI":"10.1097\/00003086-199002000-00046","article-title":"Axial rotation gravity goniometer. 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