Disclosed is a system for assessing and monitoring muscle performance with self-adjusting feedback in order to evaluate progress in physiotherapy received by patients who have suffered muscle damage, the method including: A) at least one apparatus for acquiring muscle or biopotential signals； signal conditioning； processing, sending, receiving information； and self-adjusting feedback； B) at least one external computer and/or monitor or graphic interface for viewing external information； C) wherein the at least one apparatus for acquiring muscle or biopotential signals； signal conditioning； processing, sending, receiving information； and self-adjusting feedback and the at least one external computer and/or monitor or graphic interface for viewing external information are configured to carry out a method for measuring, extracting and processing parameters for assessing and monitoring muscle performance with self-adjusting feedback in order to evaluate progress in physiotherapy received by patients who have suffered muscle damage.
