The human foot allows to perform several functions, rather than providing a Static support for the body, the foot acts dynamically in walking and Movement of the body, requiring adequate biomechanics responsible for Maintenance and posture of the body and harmonic distribution of plantar pressure.

One of the most important structures for this control is the medial plantar vault (MPA), an important structure in the absorption of impact and essential for the function Foot. The deformation of the MPA in the gait support phase absorbs the Energy and propels the limb, to perform this biomechanical function the MPA must Stable from the anatomical point of view, which is conferred by the bone architecture and But also by the performance of the intrinsic and extrinsic musculature of the Feet. The fall of the MPA, decreases the stability of the foot, limits its biomechanical function,

Besides being a risk factor for the development of pathologies such as:

Tendinopathy of the calcaneus tendon and plantar fasciitis. Various Intrinsic Muscles And extrinsic have the function of stabilizing the foot and the MPA, being the main Extrinsic muscles: the posterior tibial, the flexor long of the hallux and the fingers. The Muscles when activated increase the height and decrease the Length of the MPA. Several methods are used to evaluate ALM, such as (AN), Feiss line (LF) and MPA angle (MPAH), in addition to the Baropodometry, which is used to evaluate dysfunctions in the feet, with the principle of Map the pressure of the plantar surface in a static and dynamic way. Based In this information, this study aims to evaluate the influence of the Strengthening of the intrinsic and extrinsic muscles of the feet, for the Of MPA in asymptomatic patients.

Inclusion Criteria:

• Individuals between the ages of 18 and 40,
• Seeders (do not practice physical activity regularly)
• No previous injuries to the feet and ankles,
• 12 months without lesions in lower members,
• Without deformities in APM,
• Such as, rigid planar foot
• No history of neurological changes

Exclusion Criteria:

• Individuals who practice physical activities regularly,
• History of pain in the feet,
• Have suffered fractures in the lower limbs,
• Muscular and articular lesions of Lower members in 12 months, -
• Flat foot,
• Valgus of calcaneus above 10º
• History of neurological changes or surgical procedure performed on lower limbs