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. 2024 Oct 21;12(10):23259671241281727. doi: 10.1177/23259671241281727

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© The Author(s) 2024

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 License (https://creativecommons.org/licenses/by-nc-nd/4.0/) which permits non-commercial use, reproduction and distribution of the work as published without adaptation or alteration, without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 3. — Ultrasound of the GM. Individual and mean (±SD) of (A) muscle thickness, (B) pennation angle, and (C) fascicle length of the SHAM (control) and HEAT groups preimmobilization (PRE-IMMO), postimmobilization (PRE-IMMO), and after rehabilitation (RTS). *P < .05. (D) Representative ultrasound image; muscle thickness was calculated as the mean of the vertical distances between points 1 and 3, and 2 and 4; pennation angle and fascicle length were calculated using the f1:0 and f1:1 markers.² GM, gastrocnemius medialis; ns, nonsignificant; RTS, return to sport.