
World Star Rain's training instructor turned out to be Professor Grace Park.
For a short period of 3 months, he trained with Rain in order to get the body he has right now. With a special diet, exercise, work outs, all to get the perfectly toned body muscles and abs and despite Rain's busy schedule with recording and preparations he still works out and exercises.
Rain has a special program in order for him to achieve his goal.The program included regular rhythm to the training for lean muscle. In addition to the spine and joints of the rehabilitation program, and the strength of a stretching program all under the guidance of Grace Park.
Professor Grace Park is a well known instructor at the age of 37 she has one of the most incredible figures for a woman especially in Korea where it is hard for women to maintain a slim figure.
Professor park is currently going to publish her book and she is at Kyung Hee University in the Department of Sports to attend graduate school.

Source: Starnews
Credits: blueprincess824 @ DailyKpopNews