This high-intensity profile is an exploration of slow-twitch and fast-twitch muscle fibers. Sometimes discussing physiology with students can get a little dry or go over their heads. Not this time! Tom makes sure they have a blast while experiencing the difference between their slow-twitch (aerobic) and fast-twitch (primarily anaerobic) muscle fibers. He gives you a concise explanation of the differences between the two muscle fibers and the resulting sensations (perceived exertion) one feels when activating each one. This ride can be an exploratory profile to teach students to pay close attention to what and how they are feeling at the various intensity levels. You can then use these cues in other profiles that rely on one or the other intensity.
If you are currently in a base-building phase, you may want to wait a month or two before trying this profile. Bring it on once you get past the build phase and teach them a thing or two!
Tom and I had fun recording this one.