Originally Posted by HorseRiderLover
I'm too lazy to read the other posts at the moment, but I'll do it tomorrow when I'm actually awake. I tense up when I canter and loose my stirrups all over the place. I sort of blame my instructor for not putting me on lunge for my first canter even if that sounds baby-ish, but it's like throwing someone out of a plane with a parachute expecting them to know how to work it. Okay, maybe that's a tad over exaggerated, but anyways. I fell off the other day in canter so stupidly because I lost my stirrup, and I nosedived. I'm working on it. Good luck with your sitting trot, apparently all I need to do is "relax". If only it was that simple.
i have issues with my stirrups in the canter as well, but although I lose them quite often, i've never fallen because of it because I have a strong SEAT. Everyone is always so concerned with their legs and using the stirrups to balance that they never take the time to develop a strong balanced seat. That's the key, it has nothing to do with your instructor not lunging you.
Now to tie this back into the original post, don't worry about your legs at first. If your stirrups slip too far back on your feet or if your feet come out all the way don't be too concerned. Just let your legs fall into their natural position while you work on being able to absorb the shock of the sitting trot through your seat and hip bones. Try to imagine that someone glued your butt to the saddle and keep your seat touching it. Don't worry about looking pretty at first. Once you can properly sit it and absorb the shock then worry about your legs. If your feet are slipping through or coming out of the stirrups you can either shorten them to accommodate your natural leg position (though I wouldn't recommend it, that's kinda the easy way out) or you can really work on reaching down with your legs, through your heels, and wrapping your legs around the horses stomach. You can even lengthen your stirrups for a while and once you get used to that, when you shorten them back up you will naturally be reaching further with your leg (always heel first) and you should be able to steady your feet in the stirrups.