"I want to tone up and look more lean, but I don't really want bulky muscles."
This workout will help you achieve those goals. You may gain a bit of muscle in the beginning if the format is new to you, as your muscles adapt to the style of lifting. But you can't get a lot of mass out of it.
Functional fitness refers to exercises that mimic activities that we do in daily life, like bending to pick up objects from the floor, or reaching overhead to grab something out of the closet. Those workouts are designed to improve flexability and strength for everyday life.
Muscle building workouts typically use heavy weights with fewer repetitions..you would use a weight that you can only do a limited number of lifts with. This is what gives you bigger & stronger muscles.
Toning is just firming up the muscles while losing a bit of fat...Muscle Endurance is a good choice for this also.
I am no expert, but hope this helps.....BTW, Muscle Endurance is one of my favorites!
Julie