in regards to [MENTION=191655]rydabent[/MENTION]'s doctor's comment about old folks getting TOO much exercise = i have had 2 docs (one of whom I follow) tell me to avoid pushing max HR too often or for too long. Unfortunately, the final 2k getting home has 500' of climbing including 3 rather steep ramps that push me to max. Personally, I'm more worried about knees than heart.

I think most doctors would prefer their (generally) healthy senior patients stay active with 'light' exercise for every muscle group.