My knee doesn't usually bother me, but every once in a while, if I'm on my feet too long or do too strenuous of an activity (like walking long distances on a road...hiking doesn't seem to bother me that much), my knee seriously kills.
At first, I thought my troubles mounting from the ground were due to my shoulder (torn rotator cuff from moving 12ft welded steel stall panels at my friend's barn last year), but now that I really examine the issue, I realize that it isn't my shoulder, it's my knee. I can get from the ground to where my knee is at a 90 degree angle, but I cannot get my knee to straighten the rest of the way so I can get up into the saddle.
So, does anyone have any ideas for helping me strengthen my knee? I know that mounting from the ground isn't ideal, but I want/need to be able to, in case I have to dismount on the trail and there isn't a stump or rock handy (northern Arizona trails are notorious for being lacking in handy spur-of-the-moment mounting blocks). Also, I know that some horses will not lead up to, or stand at, mounting blocks, so I need to be versatile (I'm going to be taking lessons, as well, and don't know what horse[s] we'll be using).