108k views
2 votes
Why do people who participate in marathons tend to have similar muscles

1 Answer

6 votes
A marathon is something that one would have to train for and be experienced in. Since most runners are experienced they might have exercised only certain muscles to achieve the goal. 
User Dave Z Dopson
by
8.7k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.