I just started lunging her today. She's very rusty and acts like I am going to hurt her (I don't know much about her background or what other people may have done to her. I do know that I have to work very calmly and slowly around her and then she responds well to me).
Anyway, does anyone have an idea on how to develope some back muscles on her by lunging exercise. Also what is best as far as building up endurance for her lung capacity.
She is 14 years old. We have no hills. Would small jumps help?