[oh8eleven]

So can we get the same effect from walking for 30 mins a day?
I was a runner for 35 years. Had to quit in 2015 (prostate issues) at age 68, but until then, all my "vital signs" - cholesterol, HDL, LDL, triglycerides, BP, etc., were good.
So instead of running I started walking 30 minutes a day and even though my numbers weren't great, they were still good.
Your results may vary.

[slorunner]

I ran in my 50’s & 60’s (1/2 Marathons) then my heart wouldn’t let me.

Struggled with various programs for years more.

Six months ago I took up swimming. 45 Minutes of laps then 25 min of pool exercises 3 times a week, light weights on off days, and I am in the best shape I’ve been in for 50 yrs. I’m 81 now & slimmer and more flexible than ever. Swimming really is the answer.