[dev_tty01]

It says nothing about weightlifting. The high intensity training is on a treadmill. Also, "changes were small and not clinically meaningful compared with exercise of lower intensity and considering measurement error." The study is really not noteworthy and certainly not a basis for changing any population wide recommendations.

[dgacmu]

I'm giving context for why a study of higher intensity cardio -in older people- might be interesting to people, and why it's not just "exercise good"