#022 [EN] - Muscle Fiber Typology with Freek Van de Casteele

"If you know the fiber type composition of your athlete, you already know how to manipulate your training variables." Muscle fiber types are frequently discussed in various field of exercise sience. Their typology seems to influence performance, training and pacing in athletes. But... - What kind of muscle fibers do we have? - How are fiber types related to exercise performance? - How can fiber types be determined? AND - (How) Can I change my fiber typology? I discussed these interesting questions with Freek Van de Casteele from Ghent University. Freek is currently finishing his PhD on muscle fiber typology and examined non-invasive methods to determine muscle fiber composition. We talked about the basics as well as the latest research on how myotypes are related to performance. Do you have questions, comments or feedback for upcoming episodes? - Just send me a voice message on SpeakPipe. Feeks's socials: ResearchGate LinkedIn X (Twitter) My "socials": Instagram YouTube ResearchGate References: 01) Ahmetov et al. (2012) Int J Sport Nutr Exerc Metab 02) Andersen et al. (2005) J Appl Physiol 03) Andersen & Gruschy-Knudsen (2018) Scand J Med Sci Sports 04) Baguet et al. (2011) PLoS One 05) Bellinger et al. (2020) J Appl Physiol 06) Bellinger et al. (2021) Med Sci Sports Exerc 07) Deschenes (2004) Sports Med 08) Hopwood et al. (2023) Int J Sports Physiol Perform 09) Lievens et al. (2021) Ghent University 10) Lievens et al. (2022) Sports Med 11) Lievens (2023) Br J Sports Med 12) Plotkin et al. (2021) Sports (Basel) 13) Van de Casteele (2024) Scand J Med Sci Sports 14) Van Vossel et al. (2023) J Physiol 15) Vikne et al. (2020) Scand J Med Sci Sports 16) Wilson et al. (2012) J Strength Cond Res Chapters: 0:00:00 Teaser 0:00:28 Intro 0:03:42 Speed Meet 0:08:40 Introduction of Freek 0:13:01 Myotypes booklet 0:14:05 Structure of muscles 0:15:59 Muscle Fiber Types 0:17:52 Coaches perspektive 0:18:52 Differences between fiber types 0:26:19 Differences between species 0:29:05 Differences between muscles 0:34:43 Differences between sports 0:41:39 Pacing and cLamax 0:48:53 How to determine fiber types? 0:54:28 Non-invasive methods 1:00:09 Agreement between methods 1:07:44 Experience and jump tests 1:10:47 Inactivity and myotypes 1:12:09 Can I change my fiber types? 1:17:31 Impact of innervation 1:20:24 Applied training studies 1:23:26 Summary 1:26:18 Freek's key message 1:29:36 Outro

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