“We should anticipate a great reduction in our ability to do
long breathing and holding the breath once we introduce the Bandha.
There is quite a lot of effort involved in doing them.
If a person can do 10.10.20.10, I have found
that with Bandha the breath is reduced to 6.6.12.6,”
– TKV Desikachar ‘The Concept, Preparation and Techniques of Bandha’
– TKV Desikachar Religiousness in Yoga Chapter Fourteen Page 200