{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,7]],"date-time":"2025-12-07T12:20:55Z","timestamp":1765110055076,"version":"3.46.0"},"reference-count":0,"publisher":"Politechnika Wroclawska Oficyna Wydawnicza","issue":"**3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Acta of Bioengineering and Biomechanics"],"published-print":{"date-parts":[[2025,11,30]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>Joint angle analysis during gait is crucial for identifying pathological conditions and estimating joint loading, thereby supporting clinical decision-making for injury prevention. Although various methods are available for analyzing joint angles, webcam-based motion capture systems (MoCap) are gaining attention due to their affordability and user-friendliness. This study aimed to evaluate and compare the inter-rater and intra-trial reliability of a webcam-based MoCap with that of a conventional inertial measurement unit (IMU)-based system.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Gait analysis was conducted on 15 participants (6 males, 9 females; mean age: 28.1 \u00b1 5.26 years). While participants walked a 3-meter distance, hip and knee joint angles in the sagittal plane were simultaneously recorded using both inertial measurement unit (IMU) sensors and a webcam-based MoCap. Inter-rater and intra-trial reliability were assessed using intraclass correlation coefficients (ICCs), and agreement between the two systems was evaluated using Bland\u2013Altman analysis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>For intra-trial reliability, most IMU-based systems demonstrated excellent reliability (ICC &gt; 0.8). Although slightly lower, the webcam-based MoCap also achieved substantial to almost perfect reliability (ICC = 0.652\u20130.838). Inter-rater reliability between the IMU and webcam-based MoCap generally showed moderate to substantial agreement (ICC = 0.466\u20130.696).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>These findings suggest that the webcam-based MoCap may serve as a viable alternative in settings where IMU systems are unavailable or impractical. Future studies should aim to refine webcam-based tracking algorithms to improve event detection, assess reliability across diverse populations and movement tasks, and further validate such systems against gold-standard marker-based 3D optical MoCap.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.37190\/abb\/214163","type":"journal-article","created":{"date-parts":[[2025,12,7]],"date-time":"2025-12-07T12:18:38Z","timestamp":1765109918000},"page":"209-218","source":"Crossref","is-referenced-by-count":0,"title":["Measuring Sagittal Plane Hip and Knee Joint Kinematics During Swing Phase: Reliability of a Webcam-Based Approach"],"prefix":"10.37190","volume":"27","author":[{"given":"Jung-Hoon","family":"Ahn","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3964-464X","authenticated-orcid":false,"given":"Hye-Kang","family":"Park","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chang Yoon","family":"Baek","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"23140","published-online":{"date-parts":[[2025,11,30]]},"container-title":["Acta of Bioengineering and Biomechanics"],"original-title":[],"link":[{"URL":"https:\/\/actabio.pwr.edu.pl\/fcp\/xGBUKOQtTKlQhbx08SlkTUARAUWRuHQwFDBoIVURNWHxSBlhnRlUuWTISTnoYDxMe\/302\/public\/publikacje\/v27-3-2025\/58.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/actabio.pwr.edu.pl\/fcp\/xGBUKOQtTKlQhbx08SlkTUARAUWRuHQwFDBoIVURNWHxSBlhnRlUuWTISTnoYDxMe\/302\/public\/publikacje\/v27-3-2025\/58.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,12,7]],"date-time":"2025-12-07T12:18:41Z","timestamp":1765109921000},"score":1,"resource":{"primary":{"URL":"https:\/\/actabio.pwr.edu.pl\/fcp\/xGBUKOQtTKlQhbx08SlkTUARAUWRuHQwFDBoIVURNWHxSBlhnRlUuWTISTnoYDxMe\/302\/public\/publikacje\/v27-3-2025\/58.pdf"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,11,30]]},"references-count":0,"journal-issue":{"issue":"**3","published-print":{"date-parts":[[2025]]}},"alternative-id":["214163"],"URL":"https:\/\/doi.org\/10.37190\/abb\/214163","relation":{},"ISSN":["1509-409X"],"issn-type":[{"value":"1509-409X","type":"print"}],"subject":[],"published":{"date-parts":[[2025,11,30]]}}}