#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