The stretches of of Thai Yoga Massage has great technique for lengthening & opening up the range of motion of the joints. Even if the person is muscular, the techniques of 'Back Walking' would be best. Check out these websites :
Thai Yoga Massage(Back Walking) - www.ehow.com/video_4953578_thai-yoga-masรยขรขโยฌรยฆ
http://www.youtube.com/watch?v=SurESMwb5รยขรขโยฌรยฆ