Originally Posted by
randallr
198 max heart rate at age 35
176 max heart rate at age 64
And a big drop in max average speed on rides between those two ages. We are mortal, eh?
My average speed on a 154 mile, 10,000' course has dropped by 1 mph over the past 20 years. It's all about adjusting your training to emphasize your strengths and minimize your weaknesses.