Resistance bands or tubes are just one more tool in your strength training toolbox. They provide resistance to your muscles and that's all that matters when it comes to building muscle and strength. What makes resistance bands a great choice is their versatility - you can take them on business trips or vacations and you can use them to target every muscle in the body. I'm not a huge fan of using only resistance bands for strength training, but they can add a different element to your workouts when you use them in conjunction with other typs of resistance.
If you've been thinking about trying resistance bands but don't know where to start, take a moment to check out my article, Get Strong & Lean with Resistance Bands and then take a look at the resistance band resources below to get some ideas for how to use them.