Spending just 60 seconds a day doing sit-to-stands—getting up and down from a...

https://speedy-wiki.win/index.php/Is_a_60-Second_Plank_a_Good_Daily_Habit%3F

Spending just 60 seconds a day doing sit-to-stands—getting up and down from a chair repeatedly—could support mobility as we age. While it’s no magic fix, this simple move may help maintain leg strength and balance