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. 2023 Apr 8;123(8):1773–1787. doi: 10.1007/s00421-023-05184-6

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© The Author(s) 2023

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Fig. 6 — Comparison of maximal strength from pre- to post-test in the stretching group (IG1), the hypertrophy training group (IG2) and the control group (CG) with extended (a) and flexed knee joint (b). ** indicates a significant increase compared to the control group of p < 0.001, * indicates a significant increase compared to the control group of p < 0.05