[en] Background: Knee Osteoarthritis (OA) is one of the diseases that generates the greatest global burden of disability, being one of the leading causes of chronic pain. The efficacy of therapeutic exercise in OA has solid scientific evidence. Telerehabilitation (TR) is a new tool that seems to bring great benefits, however, its comparison with face-to-face intervention has been little studied. Objetive: to establish whether the effectiveness of an intervention based on a therapeutic exercise program administered online is equal or superior to that administered face-to-face, in subjects with knee OA. Methods: A research project of a randomized, controlled, open-label clinical trial with pre- and post-intervention evaluation is designed and a pilot study is conducted. The efficacy of an ET program on subjects with knee OA is measured in terms of results in KOOS, ICOAP, physical condition, satisfaction and perception of changes. The Y-Test, Time Up And Go and the 30'' sit to stand were used for the physical measures. The program consisted of 18 sessions of 1h of ET, carried out in a group and supervised manner. The face-to-face group received the sessions at the UDC facilities, and the online group through the Zoom platform. The data were analyzed with the SPSS program. Outcomes: 21 subjects participated, 11 in the experimental group receiving the online intervention and 10 in the control receiving it face-to-face. The sample is predominantly female, over 60 years of age and with a BMI indicative of "Overweight". Both groups improve in all primary outcome measures (in all dimensions of the KOOS and ICOAP questionnaire), and in secondary outcome measures (balance, general mobility and lower limb strength), as well as in the level of satisfaction and perception of change. No significant differences were found in the improvements obtained between the experimental and control group Conclusions: A therapeutic exercise program administered online in subjects with knee OA is equally effective as one administered face-to-face.

[gl] Introdución: a Osteoartritis (OA) de xeonllo é unha das enfermidades que xera máis carga global de discapacidade, sendo unha das primeras causas de dor crónico. A eficacia do exercicio terapéutico na OA conta cunha sólida evidencia científica. A Telerehabilitación (TR) é unha nova ferramenta que parece reportar grandes beneficios, con todo, a súa comparación ca intervención presencial foi pouco estudada. Obxectivo: determinar se a efectividade de unha intervención basada nun programa de exercicio terapéutico administrado de xeito online é igual ou superior que o administrado de xeito presencial, en suxeitos con OA de xeonllo. Material e método: deséñase un proxecto de investigación de un ensaio clínico aleatorizado, controlado y aberto con avaliación pre e post-intervención e realízase un estudo piloto. Mídese a eficacia de un programa de ET sobre suxeitos con OA de rodilla, en termos de resultados no KOOS, ICOAP, condición física, satisfación e percepción de cambios. Para as medidas físicas empréganse as probas Y-Test, Timed Up And Go e o 30'' sit to stand. O programa constou de 18 sesións de 1h de ET, realizadas de xeito grupal e supervisado. O grupo presencial recibiu as sesións nas instalacións da UDC; e o grupo online a través dea plataforma Zoom. Analizáronse os datos có programa SPSS. Resultados: participaron 21 suxeitos, 11 no grupo experimental, que recibiu a intervención online e 10 no grupo control, que a recibiu presencial. A mostra está composta predominantemente por mulleres, maiores de 60 anos e cun IMC indicativo de "Sobrepeso". Ambos grupos melloran en todas a medidas de resultado primarias (en todas as dimensión do cuestionario KOOS e ICOAP), e nas medidas de resultado secundarias (equilibrio, movilidade xeral e forza nos membros inferiores); así como no nivel de satisfación e percepción de cambio. Non se atoparon diferencias significativas nas melloras obtidas entre o grupo experimental e o grupo control. Conclusións: un programa de exercicio terapéutico administrado de xeito online sobre suxeitos con OA de xeonllo é igual de eficaz que un administrado de xeito presencial.