Introduction: Plantar fasciitis is a common cause of feet pain in adults, at the age between 40 and 60 years old, predominately on the feminine population. They show pain when palpated on the calcaneal tubercle and they even present miofacial trigger points on the portion proximal to the medial gastrocnemius and soleus muscles. Objectives: Identify if the deactivation techniques in calf muscles offer plantar pain reduction on patients. Material and methods: 60 patients were evaluated and divided into two groups of 30 volunteers each: control group (group 1) and experimental group (group 2). All patients were submitted to filling out the life quality questionnaire SF-36, before they were sent to their specific treatments. To the group treated, a protocol was carried out, in addition to the techniques proposed on the study of trigger-points deactivation of the main muscles involved on the plantar fasciitis. Once the treatment was over, after four sessions, the patients answered the questionnaire about life quality again. Results: Through the descriptive analysis of the present study, all the variables presented a normal distribution, evidencing the initial homogeneity of the total sample. The comparative analysis between the groups post-intervention presented significant statistic differences, by a p