The symptoms of poor foot mechanics can include any one of the following:
Localized foot pain
Bunions, hammer toes
Hip or back pain - even neck pain
Your health care practitioner can prescribe custom orthotics to help correct your specific foot and body imbalance. You can help your health care practitioner by discussing any nagging foot, leg, or back problems, and even by simply asking if your feet could be part of the problem.
The longer you wear your custom orthotics the more benefit you will get out of them. If your daily activities vary to the extent that you change your footwear, then you should have a second pair of custom orthotics designed for that specific activity. (I.e. going to the gym after work
Custom orthotics will not reduce muscles tone. They will help position your foot so you will be using the right muscles at the right time, minimizing fatigue and allowing your muscles to be used more efficiently.