What is Musculoskeletal fitness? How do we build it?

Musculoskeletal fitness. 

1. Musculoskeletal fitness is the fitness that's developed when we overload our muscles. (Remember 'Overload Principle')
2. Overload is the demand on the muscle that's above normal.
3. Overload is necessary to improve muscular strength, endurance, and power. 
4. Another way of thinking it is that you're challenging the muscle. 
5. Overloading the muscle repeatedly leads to the inability to move or support the load, and we call that fatigue. 
6. Milo of Croton, an ancient Greek wrestler known for his remarkable strength. Legend has it that Milo developed this extraordinary muscular strength by lifting a cow every day. He started when the cow was just a calf, then the fact that the cow became heavier as it grew allowed Milo to use the principle of progression to become stronger. https://www.youtube.com/watch?v=nK0gZoI7WxE
7. Together, the effect of overload and progression is that your muscle adapts by adding a little bit more protein to the inside of the cell unit called the muscle fiber. 
8. These small enlargements mean that your muscle gets bigger, and we call that hypertrophy. 
9. Strength training is something that everyone can do. The stereotype is that strength training is done by big people who lift big weights. Heavyweights do make you stronger, but so do lighter weights. 
10. Both cardio and strength training improve your health and fitness