absolutely this. The docs told my Uncle in law (?) after he got t-boned on his Harley at the age of 60 and was laid up for 6 months with so many broken bones and issues that he wouldn't walk and be extremely limited in his physical activity.
He's in his mid 70's now and has hiked across the grand canyon and back once every year for the last decade and takes the dogs for a casual stroll every morning and night. Casual to him is 5-7 miles