I have lower back pain after using Valedo, is this normal?
In a positive sense, this could be muscle soreness since you are exercising or reactivating important back muscles. This is similar to your first day at the gym after a long break. However, you should avoid overtraining at the beginning, because this can lead to muscle fatigue, soreness or joint discomfort if initial training sessions are too long.
If you are a chronic patient or have been immobile for a long period of time, short training sessions are recommended to begin with. Just like with any other training program, small steps at the beginning are critical in order to avoid overtraining and consequent injuries. With time your body will adapt to the training and you will be able to train longer and do more strenuous exercises.