Resistance Training and All-cause Mortality

I just read an article from “Stronger by Science” about the correlation between resistance training and all-cause mortality in older lifters. (“What is the optimal does of resistance training for longevity?”—Nuckols) It said 30-60 minutes of resistance training per week is good (that’s not a typo) and 130-140 minutes of resistance training per week may in fact increase the risk of all-cause mortality.
I’m 82, I play pickleball three times a week and I do a treadmill twice a week. So two 30 minute sessions a week would fit my time available but would they really maintain my fitness? Your thoughts?

Unfortunately we can’t say how much strength training specifically is required for you to maintain your fitness. I don’t love the idea of measuring weekly strength training in “minutes”, though, and generally remain skeptical of the causality of these kinds of observations.