Well GB - you were right. About 2 weeks after I attuned her, she got her confidence up to try it out on her injured horse. She stood with her hands hovering over the troubled hip. After a while the horse started to flop over slightly and stretch out his head and neck repeatedly. Apparently his hip problem is related to an old jaw injury and by treating the hip - she was effecting the jaw. He stretched out for about 5 mins before relaxing and moving off.
This is the same reaction a horse kinesiologist (very wrong spelling!) I think - got when my student called her in a few months ago (they did that muscle testing thing by holding the horse's hip and pressing on the arm for strength.
She couldn't continue with the kinesiologist however cos she was too expensive - but now she can treat the horse herself. She's dead chuffed. And I'm pleased my first real attunement worked out.
She is continuing to treat him and he is defintely "loosening up" she says. Yaaaayyy horsey.