Granted he's referring to the dumbbell and barbell exercises, but the same principles apply if you want to
build muscle without weights because you're still dealing with applying a force rapidly.
And,
because I originally worked up this
Build Muscle Without Weights technique to go with body
weight training (where you can't change resistance), instead of decreasing the
weight (like in Compound Exercise Overload), you will instead just increase the rest periods, which gives your body a bit more time to recover in between sets, allowing you to keep doing sets with the exact same resistance.