I'm pretty new here, and I'm not sure this is the right forum to ask this question, but we'll see.
Anyway, I'm wondering if a rider's weight could hurt a horse. I rode for about 8 years when I was younger, and then life interfered. I do not currently own a horse, but am looking into lessons. I, er, weigh quite a bit more than I did when I was younger. For reference, I'm 5'3" and weigh about () 240 lbs. Is this too heavy? I really don't want to break any horse's back or anything. What's an acceptable range?