Safe pool temperature for various health conditions

The noodlers have succeeded, again, in getting the pool temperature raised to 86 degrees! :bitching: I have sent an e-mail to the American Red Cross, however, the more information I gather, the better! If any of you have any published articles on this topic, I would greatly appreciate it! Here is the e-mail I sent to the American Red cross: Hello, I live in an adult community with an indoor swimming pool. After doing internet research, I am still not sure of a definitive recommendation of appropriate water temperatures for the following: 1. Adults (55 years old or older) swimming laps and/or participating in water aerobics who have high blood pressure or other heart conditions. 2. Adults (55 years old or older) swimming laps and/or participating in water aerobics who have diabetes. In addition, what is the recommended air temperature and humidity percentage for an indoor pool? The pool temperature in our community was raised from 84 to 86, so I am trying to build a case for lowering the temperature to suit the needs of the majority of our residents. And, it is my guess that most of the residents using the pool have either high blood pressure, other heart conditions, diabetes, or other health conditions making it a health risk to exercise in 86 degree water. Any assistance and documentation you can provide would be most appreciated! Thank you very much, Elaine Krugman Thanks, Forumites, for any documentation you send my way! By the way, if you can post links in the forums, perhaps it would help others, as well, who are battling the same issues. If you have articles to send as attachments, please send me a PM and I will provide you my e-mail address. Thanks! Elaine P.S. Anna Lea: If you see this, does USMS have any "official" documentation at your offices?