I know that this topics from the Golden Era are no longer popular. I´ve been looking for training protocols to start with the hot water ballon burst, as well as with ribcage expansion. The later being denied in lots of sites; but anyone who has seen a person with emphysema in later stages knows that lungs can do that to the ribcage.
Since hot water bottles are not standarized equipment I wouldn´t know with which brand or type start.
It would be great and highly appreciated if you could suggest me a protocol to work on these two things; specially with the bottle burst. I hadn´t found any training protocol on the web