HRR means Heart Rate Reserve

        What does HRR stand for? Abbreviation of HRR, definition of HRR, Explanation of HRR, Full forms of short form HRR.

         We are providing world largest and most comprehensive acronyms, abbreviations directory and search engine for acronyms on the Internet. Abbreviations Finder contains more than 7 million abbreviations and acronyms. You can also search for more than 740,000 general Comprehensive words.