Another week you might do low reps with weighted resistance, followed by a week of moderate rep range work with a slightly lighter weighted resistance. (bradkolowichjr.com)
Once you start training in the more moderate rep ranges, you'll be able to challenge yourself with heavier weights. (bodybuilding.com)
Stick to moderate rep ranges of 6 - 12 per set in order to get sufficient time under tension and fatigue as much muscle fibers as possible. (fitnessandpower.com)