Originally Posted by
rumrunn6
in weight training, they recommend 48 hrs rest between sessions of the same muscle. meaning if you do biceps Monday don't do them again until Wednesday.
This is true. It's also true that (good studies have found) new lifters benefit most from hitting a muscle group 3x per week, but after about 6 months you get the most beneficial from 2x per week.
In terms of cycling, I think we all have a specific amount of work we can do and recover from. It probably has more to do with what you've been doing lately than your age. I know a lady 12 years younger than me who can't walk up the few stairs to Starbucks without getting out of breath.
Lifting weights is good for everyone. As we age we lose muscle; when you can't get off the toilet on your own any more you go live in a nursing home. Road cyclists are already behind the curve on this.