As @dagill2 said, the 5+ means aim for a PR on this set. So push that set, but not necessarily to technical failure.
The 5 means just that, five. Do 5 reps at that weight and then rack the weight.
As @dagill2 said, the 5+ means aim for a PR on this set. So push that set, but not necessarily to technical failure.
The 5 means just that, five. Do 5 reps at that weight and then rack the weight.