Average Age Predicted Heart Rate Chart Price: $99.99 - $25.00(as of May 21, 2024 22:30:38 UTC – Details) Average Age Predicted Heart Rate Chart. Ages 20-85 – 10-Sec. Count. Laminated paper, 17” X 22”. Please enable JavaScript to view the comments powered by Disqus. See also Responsible: A Memoir Post Tags :AgeAverageChartheartPredictedRate