Final answer:
To gain greater strength, it is true that you should increase the load and the number of sets while decreasing the number of reps, in line with progressive overload principles.
Step-by-step explanation:
If you desire greater increases in strength, it is true that you should increase the load and the number of sets and decrease the number of reps. This approach is consistent with progressive overload principles, which are a cornerstone of effective strength training. By lifting heavier weights, your muscles are challenged beyond their current capacity, which is essential for gaining strength. The increase in load should be accompanied by subsequent adjustments to sets and reps to ensure that you can lift the heavier weights safely and effectively. Remember, proper form and recovery are also critical elements of a strength training program.