I agree Joan, and personally prefer a 4-6 breathing rhythm for my personal practice and while teaching. 

I enjoy Amy's unique honing in "bodycues". Breathing: "Modern researcher is showing us that making even slight adjustments to the way we inhale & exhale, breathing is a tool not a rule try NOT to make your inhale & exhale equal inlength" . "Why not, a chance to get a little extra"

Patti Eppolito Kreiner Michele G Joan Breibart  thank you for these comments.  As this was a 'traditional Mat' class and when I went through training years ago and learned the 5/5 breathing as traditional, I felt it was appropriate to offer that here breath pattern here.  I do, however, in many of my own personal workouts and other classes here on PA, vary my breathing patterns.  I value each of your opinions and know that you value mine too.  Thank you.

99% of all Pilates Teachers  do and teach Hundred with the 5/5 and think if  they didn't Joe  would   turn in his grave or  WW III would  break out. Just the way  everyone teaches TWIST ib the  Reformer  even though on  this apparatus it is bio-mechanically wrong.   If   tradition means  wrong  then what good is it?? 

Thank you, Amy, Patti & Joan! I appreciate your responses and the open forum to discuss such variations and needed upgrades to tradition .

Joan Breibart thank you.. and yes, I am a big fan of changing things up, a BIG fan!  Variety in movement is key, yes, and equally or maybe more so, great for our brain!!  Michele G and Patti Eppolito Kreiner , thank you for the conversation.

I love the outdoor class, very refreshing. good strong class but I feel the hundred would be better suited to 4-6 breathing, stretching that exhale a little more can have great benefits and feels more natural.

Hello Arlene R , yes, this breathing rhythm has been discussed.  This class was 'traditional' and I was following the breathing 5/5 that I learned way back in my early days of learning Pilates.  The traditional breath was 5/5, therefore, that's why I put that here.  I often do 4/6 and agree with the benefits.  I also agree it is good to keep changing things up, even 3/7, 2/2, 2/8 etc.  Why not keep challenging both body and mind?

Love this class!! Love the little variations!!  Thank you Amy!!  

Thank you so much Carole T !