The incidence of flat foot in adolescents is more than 10%, mostly accompanied by pain and decreased mobility. In fact, flat foot will not only make children walk long-distance running easy to fatigue, but also may bring spine tilt, poor posture and other problems. The foot is the main load-bearing part of the human body. The normal heel and the back of the foot form the ligament and the joint, so that the foot has better elasticity, can buffer the impact and shock of external forces, and also plays a protective role in the nerve of the bottom of the foot when walking. This is the basis of human running, jumping, long distances and difficult movements. Children and adolescents are in the period of growth and development, the feet until about 15 years of age, from childhood to adolescence, the feet are the most vulnerable to injury. If the foot dysfunction occurs, it will affect the support and balance function of the foot, and even produce the wrong posture compensation, affecting more musculoskeletal ligaments of the lower limbs and the physiological health of the spine, thus seriously affecting the growth and development of teenagers. Adolescent flatfoot accounts for about 60% of foot lesions, which is mainly divided into congenital flatfoot and adolescent acquired flatfoot. Among them, congenital flat foot is caused by congenital factors of foot arch collapse, including tarsal combination, secondary boat bone, congenital vertical talus, etc., and adolescent flat foot, except congenital factors, due to standing too long, too much weight, nutrition, rest, foot ligament, muscle gradually chronic strain and atrophy, lead to spring ligament and plantar aponeurosis rupture, cause medial longitudinal arch progressive collapse, form flat foot. Although the two causes are different, they are manifested as arch collapse accompanied by forefoot valgus and posterior foot abduction, which will cause the affected foot to fatigue during long-distance walking and running, and their speed, endurance and explosive force are not as good as the normal foot.

 

 

 

 

 

 

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