prosupinaation

Prosupination refers to a biomechanical motion of the foot and ankle. It is a combination of pronation and supination. Pronation is the inward rolling motion of the foot. Supination is the outward rolling motion of the foot. When these motions occur in sequence during the gait cycle, they are referred to as prosupination. Specifically, the foot pronates during the stance phase as the body's weight is accepted. Following this, as the heel lifts and the foot prepares to push off, it supinates. This sequential motion is a normal and essential part of walking and running.

The prosupination mechanism allows the foot to adapt to uneven surfaces and absorb shock. During pronation, the arch of the foot flattens, increasing flexibility and providing a shock-absorbing effect. As the foot then supinates, the arch rebuilds, creating a rigid lever for efficient propulsion. This dynamic interplay between pronation and supination is crucial for efficient locomotion and preventing injury. Abnormalities in the prosupination cycle can contribute to various foot and lower limb conditions, such as plantar fasciitis, shin splints, and stress fractures. Understanding the normal prosupination pathway is important in the assessment and treatment of these issues.