i just wanted to know if anyone here does extensive bodyweight exercises in place or along w/ weights. i was just curios as to whether or not it really improves ur muscular endurance that much. i use weights and usually lift 8-10 reps of 3 sets but noticed the other night while grappling for a long period of time that my muscles were extremely fatigued. i have lloyd irvin's body weight exercise book for combat sports but haven't used i yet. just wanted to know what you all think. thx.