Does anyone have any knowledge and/or experience with 'periodization'? From my preliminary research, it looks like it's just mixing up your exercising routine but perhaps I'm overly simplifying it.

I guess the thing that's driving my question is whether it's of maximum benefit to the body to alternate between traditional strength training (2-3 sets of 10-12 reps) with slow cadence strength training (1 set of 3-7 reps at slow speed). I've been doing slow burn for nearly 6 months now and although I'm maintaining my condition, I'm not reducing inches any longer.

What do you all think?

Periodization is manipulating training variables in a way that optimizes your results. It applies to training as well as diet. It is different than just randomly changing your workouts.

To answer your question, absolutely it is better to alter your program. No single program is going to be vastly superior for any appreciable amount of time. In fact, since you've been training slowly, I would discard slow tempo resistance training altogether for at least a few months. Introduce some new training stimulus to your routine.

In terms of a routine, you have to look at your goals, equipment availability, lifting experience and most importantly - individual posture and biomechanics. It wouldn't be a bad idea to hire a trainer for a couple of sessions to establish this - one who does movement screens and postural assessments.

And while there is no single program that is vastly superior to any other - free weights, body weight and cable exercises should make up the vast majority of any program. If you have been on machines, you may need to rehabilitate your movement mechanics a bit as they will be comprimised by doing exercises on machines.

Hope that helps. If you have any other questions, please ask.