Joining Muay Thai school...Now also join a work out gym?

[Riz1]

hey guys im wondering if i join a muay thai school should i also join a work out gym? Im asking this because i know i can gain stamina and techniques at the school but how about working out my muscles and running...Just would like a feedback and opinions...Any of you guys also do that or do you guys just join the school and forget about the gym by just working out at the school? thanks guys