Final answer:
The 20 RM loads include higher reps with lower weight, specifically 15 to 20 reps.
Step-by-step explanation:
The RM loads that include higher reps with lower weight, specifically 15 to 20 reps, are the 20 RM loads. RM stands for 'repetition maximum,' and it refers to the maximum amount of weight an individual can lift for a given number of reps. In this case, the 20 RM load would be the weight that can be lifted for 20 reps.