CHILDBIRTH PREPARATION: Relaxation, Breathing & Comforting Techniques Available on VHS This program provides an outline of the content and conduct of the classes. A discussion of the anatomy and physiology of childbirth is included. A detailed description of the nature and functions of contractions is presented. Exercises and techniques of relaxation, breathing, focal point, effleurage, massage, stroking, expulsion and comforting are presented in a clear, concise manner.