My 13 yr old daughter loves to run and needs a good running shoe. She has been in physical therapy for 4 months trying to stretch her left side achilles as it is not growing/stretching as she is growing. She has finally got the green light to start running again, but finds her shoe needs are different. She always wore lightweight Nike running flats before, but those are not supportive/comfortable. Any suggestions. Prior to the injury she ran approx 15 miles per week outside of track season/during her other sports seasons. During track season she runs about 5 miles a day. Any recommendations would be appreciated. Thanks.