Final answer:
Usually, if you can perform 2 or more additional repetitions beyond your target rep range for 2-3 consecutive workouts, it may be time to increase the weight for a strength training exercise.
Step-by-step explanation:
When considering how many extra reps should be completed with perfect technique before increasing the weight for a strength training exercise, there are various approaches. However, a common rule of thumb is that if you can perform 2 or more additional repetitions beyond your target rep range for 2-3 consecutive workouts, it may be appropriate to increase the weight slightly. For instance, if your goal is to do 8 reps and you can comfortably do 10 with good form, it's a sign that you can handle a heavier weight. However, this can vary depending on the individual's fitness levels, goals, and the specific exercise being performed.