[lrmunoz]

I don't know why this comment got downvoted. I personally thing there is so much truth in it.

I practice Olympic lifting (total beginner) and I have to concentrate so much during exercises. Take for instance the snatch movement [1] which is my personal favorite and one of the hardest (in my opinion)

Also I find weightlifting very addictive: when you do the movement successfully is very rewarding. When you get it wrong you can't wait to try again next time

[1] https://www.youtube.com/watch?v=BqWYvGDIRwE

[didibus]

Okay, but how much you find it addictive, and how much you feel you need to concentrate doesn't mean it'll improve brain plasticity in elderly people. In this study, they did a form of strength training and it didn't improve brain plasticity nearly as dance.

So I mean, it's hard to have someone just come in and say: "nope the data is wrong my opinion of this activity I am biased towards as I practice it myself is right", and not be somewhat skeptical. Yes, this is a small preliminary study, maybe the type of strength training was responsible for the failings, etc. But it's still much more substantial then someone's opinion.