Sleep Apnea/Deeper breathing


When I got my first sleep apnea machine, the setting was 10. A couple years later I felt it was too strong and had it lowered to 9.
I recently got a new machine, and after home testing, it was set at 10. Since Xmas I have felt that the pressure has become progressively weaker.
In looking back, during the period of  the first change, I had gained weight and gotten out of shape. This time around, sine Xmas, I am losing weight and exercising. Could it be that since my lungs are stronger and I am fitter, I need more air? Does a persons fitness level change the settings, or should it be the same no matter what?

Bud:  overall fitness and especially weight can have an effect on a person's therapeutic pressure needs.  But in the long run, the person's subjective feeling of CPAP pressure levels is just that: subjective.  If you have any doubts about the suitability of your CPAP therapy or the function of the CPAP unit itself, bring the first concern to the attention of your physician and the latter concern to the attention of the DME that provides your CPAP equipment.  The most important questions you should be asking is whether or not you are heard snoring while on CPAP and whether or not you are feeling tired during the day.  If the answer is yes to either one, I would suggest you have a re-titration to establish correct therapeutic pressure for your therapy.

Sleep Apnea

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Dave Walsh RRT


Registered Respiratory Therapist and Licensed Respiratory Care Practitioner (IL). Thirty-five years in the field of Respiratory Care with the last twenty-five years spent concentrating in the area of sleep disordered breathing. Established the first hospital based compact multiphysiologic recording program for the diagnosis and treatment of obstructive sleep apnea syndrome (OSAS).


I'm proud to have built a comprehensive sleep disorders center in Chicago during the '80s and to then go on and build the first hospital based home sleep testing (HST) program in the country. I now own and operate Sleep Case Management, a Division of DRW&Associates Inc, providing sleep disorders case management services to physicians and their patients in northern IL along with providing home sleep testing and arrangements for in-lab sleep testing.

American Academy of Sleep Medicine, American Association for Respiratory Care

BSc (Biology), ASc (RT)

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