Orientador: Fábio Santos de Lira / Banca: Manoel Carlos Spiguel Lima / Banca: Valeria Leme Gonçalves Panissa / Resumo: Introdução: A dor lombar crônica (DLC) não especifica é a mais encontrada na prática clínica, além de ser um dos problemas mais discutidos no mundo. Indivíduos com dor lombar crônica (CDLC) não especifica possuem um menor nível de atividade física quando comparados com indivíduos sem dor lombar crônica (SDLC), e, portanto, uma diminuiição na potência aeróbia (VO2máx). As diretrizes da área de dor lombar recomendam a prática de exercício físico, assim como afirmam ser eficaz em diminuir a intensidade da dor e incapacidade funcional. No entanto, os estudos que utilizam o exercício físico como tratamento para DLC, falham ao não prescrever o exercício de maneira específica ... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Introduction: The non-specific chronic low back pain (NSCLBP) is the most commonly found in clinical practice as well as being one of the most discussed problems in the world. Individuals with non-specific chronic low back pain (NSCLBP) have a lower level of physical activity when compared with individuals without NSCLBP, and therefore a decrease in aerobic power (V̇O2max). The guidelines of NSCLBP recommend as treatment the practice of physical exercise, as they claim to be effective in reducing the intensity of pain and functional disability. However, studies that use exercise as a treatment for LBP fail to prescribe exercise in a specific way. Objective: Evaluate and compare the effectiveness of different treadmill protocols for aerobic fitness determination in individuals with and without NSCLBP. Materials and Methods: Twenty individuals (10 with NSCLBP and 10 without NSCLBP) underwent two tests (modified Bruce and incremental) on treadmill. The following were collected during the tests: oxygen consumption (V̇O2), heart rate (HR), rate perceived exertion (RPE 6-20), blood lactate concentration ([Lac]), respiratory quotient (RQ) and pain intensity. Independent t-test was used to evaluate the difference between groups. Differences in physiological responses within groups (with and without NSCLBP) and between groups (Group vs. Test Interaction) were analyzed using two-way ANOVA. Statistical significance was set at p < 0.05 ... (Complete abstract click electronic access below) / Mestre