[oneeyejak]

There are lots of arguments between experts on both sides of the coin on this one. What most agree on is that acheiving a pump is beneficial in this way: If a person is training with heavy weight and low to moderate reps, and acheiving a pump, it is an indication that they are effectively targeting the muscle or muscle groups that they are training.

Anyone can get a pump by doing 40 reps of curls or any other exercise for that matter.. Obviously this is not the optimal strategy to pack on muscle or to increase muscle strength.

In my opinion, acheiving a pump with low to moderate reps and moderate sets, is a good indication that a person is no longer a beginner and has built enough muscle and achieved enough of a "mind/muscle connection" to striclty hit the muscles they are training.