In the competitive swimming scenario, there is a significant incidence of pain, which can be justified by the high levels of training that exposes athletes to constant stress. In this way, the quantification of pain and its monitoring becomes extremely important for clinical practice. A commonly used tool with easy access and clinical applicability, capable of measuring the pain threshold (PT) in a standardized manner is the pressure algometer. However, there is a shortage in the literature of studies that evaluate the reliability of this instrument in healthy swimming athletes. Objectives: Evaluate the intra and inter-examiner reliability and to describe the profile of the PT measurements measured by the algometer in swimming athletes. Methods: It is a reliability study, and will be composed of fifty young athletes members of swimming teams, of both genders, aged between 12 and 20 years. The evaluation will be carried out on the same day and in 2 steps: (1) Test and (2) Retest. In the first step, through a third examiner, the participants will be subjected to marking of points in pre-determined muscles and in points of referred pain. Next, they will perform the PT assessment through the algometer by two other distinct and trained examiners. The interval between each examiner will be five minutes with the participant at rest. After five minutes the test was performed, the step retest will begin, which will have the same procedures as in the previous step. The statistical package SPSS Statistics 23.0 will be used to conduct the analyzes.

Inclusion Criteria:

• Healthy swimming athletes

Exclusion Criteria:

• Being an alcoholic and/or consuming drugs and/or smoking;
• Anti-inflammatory and / or analgesic drugs less than 24 hours before the test;
• Presenting anemia, inflammatory process, diabetes, cardiovascular disease;
• Episodes of muscle-tendon or osteoarticular injury in the lower, upper and / or lower limbs spine in the last three months;
• In addition to swimming for less than two years.

Young swimming athletes who regularly train and are members of the swimming teams of the 4th region of the state of São Paulo, of the São Paulo Aquatic Federation (FAP), of the cities of Presidente Prudente, Votuporanga and São José do Rio Preto.

Individual data will not be released, because participants are under eighteen.