I've been doing muay thai for about 3 months now, and I find that my shoulders get tired when going hands-only. What are some ways to improve shoulder endurance? Exercises, rep schemes, etc..? A lil background - I've been into bodybuilding the last few years, so I was in the gym 4 times a week. Now I do muay thai 3 times a week, and still try to make it to the gym 1-2 times a week. I've decreased the number of exercises I do for shoulders since I started training in muay thai, and use lighter weight now. What are your recommendations ???