Achilles tendinopathy is the injury that primarily occurs in athletes and people who engage in repetitive activities that involve the calf muscles, such as running, jumping, and sudden acceleration and deceleration movements. To observe the effectiveness of dry needling in the PGM of the gastrocnemius muscle, in the short and medium term, on the intensity of pain in gastrocnemius muscle, in the short and medium term, on pain intensity in patients with patients with Achilles tendinopathy, compared to the application of ultrasound-guided percutaneous electrolysis on the tendon.

Inclusion Criteria:

• Signing of informed consent both to participate in the study and to undergo invasive in the study, as well as to undergo invasive physiotherapy techniques. physiotherapy techniques.
• Presence of symptoms (swelling or pain) for at least 3 months.
• Positive Achilles tendon palpation test.
• Males and females over 18 years of age.
• Presence of MMP in the gastrocnemius muscle, meeting at least three of the following criteria diagnostic criteria described by Travell and Simons:
• Presence of palpable tight band.
• Local pain on pressure at the nodule of the tense band.
• Recognition by the patient as his usual pain after mechanical after mechanical stimulation of the sensitive nodule.
• Limitation of range of motion.

Exclusion Criteria:

• Any related acute or chronic musculoskeletal disease that may related chronic musculoskeletal disease, which may affect the results of the study