I don't know how endurance fits into everything though. It may be that light weights and many repetitions would be good for endurance, particularly for martial arts. It's something I'm hoping to find out myself as I continue to learn more.
Light weights and multiple reps are essentially a glorified cardiovascular workout. The disadvantage is that its not an effective use of our time. There are more effective ways to put on muscle, and to get a good cardio workout.
Lifting heavier weights puts on more muscle tissue, which burns fat as well as increases our endurance to do whatever it is we want to do, including martial arts.
The photos of overly muscular women in bodybuilding magazines is not possible for a normal female, without the use of steroids.
One example I can share is Melissa Byers, who runs Crossfit 603 up my way. Melissa is insanely strong but she doesn't have a freakishly muscular physique. Here is her Crossfit school blog and her personal blog, respectively:
www.crossfit603.com
www.byersgetsdiesel.com