How to stay Athletic while gaining muscle?

[patscorpio]

i did non gym sports like basketball and swimming...my old apartment complex i used to live at had both a court and pool....so on my non gym days i would do one or the other or both

running and anything highly aerobic..i was boxing when i was walking around super diesel..i even started doing 5K's and extreme obstacle courses for a time

 

[Spliff]

Do athletic things while gaining muscle.