You should try a lighter band if you can't take the resistance. On the other hand, if it's too easy, you can opt for a heavier band. Make sure none of your muscle or joint aches while you are training. While training, your muscles may get Empowered Boost warm but you shouldn't feel pain. Before you begin a new exercise program, we suggest that you get in touch with a health care service provider. If you are over 50, we suggest that you start with the lightest resistance band. Ideally, it's a good idea to choose a 3-pack with a light resistance band.