Fitness

General

• https://en.wikipedia.org/wiki/Strength_training
• https://en.wikipedia.org/wiki/Anatomical_terms_of_muscle
• https://www.youtube.com/channel/UCZIIRX8rkNjVpP-oLMHpeDw Calisthenicmovement

Running

• Livestrong, Quadriceps for runners
• http://www.runmagazine.nl/categorie/video/

Books

• Al Kavadlo,Total Body Strength With No Equipment