The best replacement for heavier weights is more reps.

The best alternatives to heavier weights are rated as following:
★★★★★  more reps
★  more repetitions
★  repetitions
  reps
  lighter weights
  lighter

Your alternative for heavier weights is not listed? Suggest!
Speaking about heavier weights, one probably shouldn't forget about less reps.

Other search terms related to heavier weights and their ratings are:
★★★★★ less reps
★★★★★ fewer reps
★★★ lower reps
You have in mind a companion for heavier weights and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of heavier weights in all years. Click on graph for more.
heavier weights
more reps
more repetitions