This study will be featured as a randomized controlled. As the dependent variable, was considered isometric grip manual force. As independent variable, the presence or absence of forearm bandage in the fist flexor region of the volunteers.

This study is directed to the population of students at the University of Mogi das Cruzes (UMC), and will take part of this study forty volunteers, twenty men and twenty women, aged from eighteen and thirty-eight years old. Will be selected and included volunteers who do not do physical professional activity with upper members, which have no symptom of pain skeletal muscle in the upper members, which have not undergone any type of surgery in the region of the forearm and hand of both members. Will be excluded the volunteers who have injuries, joint injuries, neuromuscular disorder or those who have knowledge of own vestibular or neurological changes. Will also be excluded from study volunteers who do not agree to participate after reading and understanding of informed consent in accordance with resolution 466/12 of the National Ethics Committee and Research. The data acquisition interface will be acquired by an electromyography e a standard of strentgh will maintened in forty Newtons assured by an electronic dynamometer for tests of palmar prehension without and with bandages. The volunteers will not know what kind of intervention will pass. After each application before testing, their both forearms will be covered with a protection. The researcher and the volunteers will not know the tests order.

Inclusion Criteria:

• Who do not do physical professional activity with upper members;
• Who have no symptom of pain skeletal muscle in the upper members;
• Who have not undergone any type of surgery in the region of the forearm and hand of both members;
• Consent form signed by the volunteer.

Exclusion Criteria:

• Having less than 18 years old;
• Having more than 38 years old;
• To present some compromise skeletal muscle in the upper members;
• Who do not want take part in the research;
• Who do not signed consent form as volunteer.