When walking, footwear has a great impact on the back. When an uncomfortable or inappropriate footwear is worn for a while, the first discomforts that are perceived are usually fatigue and foot pain, but they can also cause backaches. These ailments, in addition, can make adopt bad postures that tense and force the muscles to exert a movement or a force superior to the natural one, being able to cause some injury. For this reason it is important to choose a shoe that provides flexibility and comfort, to avoid having a negative influence on the way you walk. In addition, it is recommended that the footwear has a support base stable and wide enough to help keep the spine and body aligned. As for the sole, it is recommended that the shoe includes a heel between 2 and 5 cm to provide balance to the body. A higher heel raises the heels above the fingers, causing the body an imbalance to which it is not accustomed, and which can cause muscle tension in both the legs (especially in the calf and shin), as in the fingers of the feet and also in the back. It should also be borne in mind that the greater the heel and imbalance, the more likely there is to have a sprained or sprained ankle.
Once the right footwear has been chosen, it can be complemented with a template that helps relieve muscle tension and prevent the appearance of injuries. "
Mireia Arjona. ICE Health