Christopher Sommer
Christopher Sommer has written at least 1 book. Their most popular book is Building The Gymnastic Body: The Science of Gymnastics Strength Training with 2 saves with an average rating of 4⭐.
Christopher Sommer has written at least 1 book. Their most popular book is Building The Gymnastic Body: The Science of Gymnastics Strength Training with 2 saves with an average rating of 4⭐.
