The Crane

This breathing exercise is excellent for developing efficient breathing, balance, core strength, leg strength, and precision. No more than three reps per session and no more than three sessions a day. The video shows one rep.

Related Resources:

Books: Breathing exercises are discussed in detail in The Theory and Practice of Historical Martial Arts and The Principles and Practices of Solo Training

Online courses: Fundamentals: Breathing, which is part of the Solo Training course.