Islam, Md ShafiqulHarden, Samantha M.Lee, Sang WonLim, Sol2025-04-282025-04-282025-03-250014-0139https://hdl.handle.net/10919/126234Live-streamed group exercise programmes are used increasingly to start or maintain physical activity behaviours. However, participants’ performance and long-term engagement can be impacted in live-streamed programmes due to communication gaps with the instructors and peers. We analysed verbal and nonverbal communication differences between in-person and live-streamed group yoga classes to understand current challenges in live-streamed exercise programmes. A total of 29 group yoga class videos (14 live-streamed and 15 in-person) were annotated and analysed for verbal and nonverbal communication events. We found significantly reduced individual feedback in live-streamed vs. in-person sessions, while the trend was reversed for physical pose demonstrations. Environmental incidents hindered fluent communication in live-streamed sessions. The study identified interaction gaps in live-streamed group physical training in both verbal and nonverbal communication, especially in relation to providing personalised feedback for performance improvement. Potential ways to improve instructor-participant interactions in future designs for remote exercise platforms are discussed.20 page(s)application/pdfenIn CopyrightPhysical trainingzoom exerciselive-streamingYogaobservational studyVerbal and nonverbal communication differences between in-person and live-streamed group physical activity: a specific investigation into yoga instructionArticle - RefereedErgonomicshttps://doi.org/10.1080/00140139.2025.2478619Harden, Samantha [0000-0003-3520-2457]Lee, Sang Won [0000-0002-1026-315X]Lim, Sol [0000-0001-5569-9312]401311631366-5847