Sprinting

• This is a compound exercise.
• Increases TRT and stuff
• Sprint is a cool idea!
• Its a full body exercise basically.
• fast twitch muscle fiber vs. slow twitch
• henemen size principle
• Sprint interval training: 30 seconds and 4 minute break.
• This is great.

https://www.livestrong.com/article/510154-what-kind-of-physique-would-you-get-from-only-running-sprints/