[en] Introduction: Plantar pain is a problem with which a large percentage of the population lives. There are multiple therapies that try to resolve this fact, but on many occasions they are considered ineffective or too long in time. For this reason, it is considered important to know the effectiveness of diode laser treatment to solve plantar fasciitis and thus assess whether it would be interesting to have this type of therapy in the office, or otherwise, it would not be more effective than other therapies that are had previously been using for the resolution of this pathology. Main objective: to determine the effectiveness of laser therapy for the resolution of clinical plantar fasciitis. Secondary objectives: To analyze the clinical-anthropometric characteristics and associated variables of patients diagnosed with plantar fasciitis, to verify that the laser reduces the thickening of the fascia through ultrasound measurements, in addition to determining if there are previous degenerative changes in the fibrillar pattern of the fascia. before undergoing laser therapy. Methodology: A quasi-experimental, longitudinal study of quantitative methodology will be carried out in which there will be a sample of 23 subjects who present plantar fasciitis at the Clínica Podológica Universitaria de Ferrol, province of A Coruña. After having signed the informed consent and having responded to the different validated questionnaires related to pain and physical activity (IPAQ 7, FFI, EVA), patients previously diagnosed with plantar fasciitis will come to the consultation to perform shortening tests of the posterior chain using the Silverskiold test, ultrasound measurements and the elderly will receive the first of 10 laser treatment sessions that will cover a period of 2 months. The data collection will be completed by repeating the same measurements and tests as in the patient's first visit. After registering the variables to be studied, the treatment will be concluded and the data analysis will be carried out to verify the difference between the initial, average and final values. It is necessary to highlight that during the development of the research all current ethical-legal aspects will be followed.

[gl] Introdución: A dor plantar é un problema co que vive unha gran porcentaxe da poboación. Son múltiples as terapias que tratan de resolver este feito, pero en moitas ocasións considéranse ineficaces ou demasiado longas no tempo. Por este motivo, considérase importante coñecer a efectividade do tratamento con láser de diodo para resolver a fascitis plantar e así valorar se sería interesante contar con este tipo de terapia no consultorio, ou se non, non sería máis efectiva que outras terapias que se viñan utilizando previamente para a resolución desta patoloxía. Obxectivo principal: determinar a eficacia da terapia con láser para a resolución da fascitis plantar clínica. Obxectivos secundarios: Analizar as características clínico-antropométricas e as variables asociadas dos pacientes diagnosticados de fascitis plantar, comprobar que o láser reduce o engrosamento da fascia mediante medicións ecográficas, ademais de determinar se existen cambios dexenerativos previos no patrón fibrilar de a fascia, antes de someterse a terapia con láser. Metodoloxía: Realizarase un estudo cuasi-experimental, lonxitudinal, de metodoloxía cuantitativa no que haberá unha mostra de 23 suxeitos que presenten fascitis plantar na Clínica Podolóxica Universitaria de Ferrol, provincia da Coruña. Tras asinar o consentimento informado e ter respondido os diferentes cuestionarios validados, relacionados coa dor e a actividade física (IPAQ 7, FFI, EVA), os pacientes previamente diagnosticados de fascitis plantar, acudirán á consulta para realizar probas de acurtamento da cadea posterior mediante o a proba de Silverskiold, as medicións ecográficas e en adición, recibirán a primeira das 10 sesións de tratamento con láser que abarcará un período de 2 meses. A recollida de datos completarase repetindo as mesmas medicións e probas que na primeira visita do paciente. Despois de rexistrar as variables a estudar, finalizarase o tratamento e realizarase a análise de datos para verificar a diferenza entre os valores iniciais, medios e finais. Cómpre destacar que durante o desenvolvemento da investigación se seguirán todos os aspectos ético-xurídicos actuais