2025 CROSSFIT GAMES TICKETS ARE NOW ON SALE |
BUY TICKETS
Open a CrossFit Gym
Getting Started
What is CrossFit?
Find a Gym
Courses
About
Level 1 Certificate Course
Explore All Courses
Private Courses
Military Resources
Coaching Resources
Workouts
Workout of the Day
Explore Workouts
Hero Workouts
Movements
Learn
Games
Store
Friday
190823
Muscle Basics, Part 1
Cells, proteins, and sarcomeres
Read More
CrossFit Kids Research Brief: Bone Density
Published on August 22, 2019
Read the article