Muscle growth probably happens more on the "down" (eccentric) portion of the motion than the "up" (concentric) portion. A good "body building tempo" to aim for is something like ~3 seconds down, ~1 second up. In practice this has seemed to yield noticeable results. Or maybe it’s wishful thinking. **** # More ## Source - [Jeff Nippard video](https://youtu.be/71op1DQ2gyo?si=a5o7uCaQSqX6taM1) ## Related - [[Ideal Exercise Regiment]] - [[Muscle Growth Factors]]