Study of Windlass Mechanism in the Lower Limb Using Inertial Sensors.

Aims: This study aimed to quantify the degrees of movement that occur in the lower limb using a kinematic system after taking two measurements of 45° and 60° of extension at the first metatarsophalangeal joint (1st MTPJ) and to test the validity of this sensor system using radiography.

Methodology: This was a quasi-experimental test-post-test study with a single intervention group (25 subjects). Four inertial sensors were placed on the proximal phalange of the first toe, dorsum of the foot, medial-lateral of the leg (level of tibia), and medial-lateral of the thigh (level of femur).

Comparative Study Between the Different Techniques of Molding and the Morphology of the Foot in Weightbearing.

Background: Taking a mold of the foot is an important advance for podiatric medicine and an indispensable procedure for the individualization of orthopedic treatments. We sought to determine which method of measuring molds (plaster cast in weightbearing and nonweightbearing and phenolic foam in weightbearing) reproduces with more reliability the expansion of the foot in weightbearing by comparing the widths of the forefoot and hindfoot in the different methods and in barefoot weightbearing.

Methods: In 54 patients, we studied the differences in width between the forefoot and hindfoot in barefoot weightbearing compared with in the different mold obtainment techniques.

Three-dimensional variations in the lower limb caused by the windlass mechanism.

Background: The windlass mechanism was described as the effect caused by the extension of the first metatarsalphalangeal joint (1st MTPJ). Quantify the degrees of movement produced in the leg by means of the Bioval® sensor system, after performing two measurements in the 1st MTPJ, 45° extension and maximum extension.

Methods: Tests-post-test study with just one intervention group, performed in the Clinical Podiatry Area of the Faculty of Nursing, Physiotherapy and Podiatry of the University of Seville.