Transition to barefoot running
https://barefootuniverse.com/transition-to-barefoot-shoes-barefoot-shoes-for-beginners/
https://barefootuniverse.com/transition-to-barefoot-shoes-barefoot-shoes-for-beginners/
https://www.derstandard.at/story/3000000186807/warum-sind-starke-muskeln-beim-aelterwerden-so-wichtig