Resumo Introdução: Alterações no posicionamento das estruturas corporais podem estar associadas à flexibilidade muscular e à mobilidade articular, mas essas evidências ainda são incipientes. Objetivo: Identificar se existem evidências de correlação entre parâmetros da postura corporal estática em ortostase e a flexibilidade e/ou a mobilidade da coluna vertebral e da pelve. Métodos: Revisão sistemática direcionada pelo PRISMA Statement e nas recomendações da Colaboração Cochrane (PROSPERO: CRD42015026298). Foram conduzidas buscas nas bases de dados BIREME, EMBASE, PubMed e Science Direct, considerando o início das bases até o dia 16 de janeiro de 2017, com os termos e operadores booleanos “posture” AND “spine” OR “pelvis” AND “range of motion, articular” OR “movement”. Para serem incluídos, os estudos deveriam apresentar desenho metodológico observacional ou ensaio clínico, amostra de indivíduos saudáveis, resultado de teste de correlação ou associação entre postura estática e mobilidade/flexibilidade no plano sagital, e redação em idioma espanhol, inglês ou português. A qualidade metodológica foi avaliada pela escala de Downs & Black e a força de evidência pelo sistema GRADE. Resultados: Foram encontrados 5.326 estudos, sendo sete incluídos após crivo dos critérios de elegibilidade, os quais apresentaram elevada qualidade metodológica. Contudo, é considerável a heterogeneidade no que diz respeito a escolha de instrumentos e protocolos avaliativos. Diante disso, a presente revisão sistemática apresenta moderada força de evidência. Conclusão: Ainda não existem evidências definitivas sobre as possíveis relações entre a postura corporal e a flexibilidade e mobilidade da coluna vertebral e da pelve.

Abstract Introduction: Changes in body structure positioning are associated with muscle flexibility and joint mobility, but evidence of this relationship is still incipient. Objective: To identify evidences of correlation between parameters regarding static body posture in orthostasis and spine and pelvis flexibility and/or mobility. Methods: Systematic review guided by the PRISMA Statement and the recommendations of the Cochrane Collaboration (PROSPERO: CRD42015026298). A search of the BIREME, EMBASE, PubMed and Science Direct databases was carried out, considering the beginning of the databases until January 16, 2017, with the terms and Boolean operators “posture” AND “spine” OR “pelvis” AND “range of motion, articular” OR “movement”. To be included in the review, studies should present observational or clinical trial methodological designs, have sampled healthy individuals, present correlation or association test results between static posture and mobility/flexibility in the sagittal plane, and be published in Spanish, English or Portuguese. The methodological quality was evaluated by the Downs & Black scale and evidence by the GRADE system. Results: A total of 5,326 studies were obtained, seven of which were included after the establishment of the eligibility criteria. All studies presented high methodological quality, although a considerable heterogeneity regarding the choice of instruments and evaluation protocols was noted, reflecting contradictory results. Therefore, the present systematic review presents a moderate strength of evidence. Conclusion: No definitive evidence is yet available concerning the possible relationship between body posture and spine and pelvis flexibility and mobility.

Resumen Introducción: Los cambios en el posicionamiento de las estructuras corporales pueden estar asociados a la flexibilidad muscular y la movilidad articular, pero estas evidencias todavía son incipientes. Objetivo: Identificar si existen evidencias de correlación entre parámetros de la postura corporal estática en ortostasa y la flexibilidad y/o la movilidad de la columna vertebral y de la pelvis. Métodos: Revisión sistemática dirigida por el PRISMA Statement y en las recomendaciones de la Colaboración Cochrane (PROSPERO: CRD42015026298). Se realizaron búsquedas en las bases de datos BIREME, EMBASE, PubMed y Science Direct, considerando el inicio de las bases hasta el 16 de enero de 2017, con los términos y operadores booleanos “posture” AND “spine” OR “pelvis” AND “range de movimiento, articular” OR “movement”. Para ser estudios incluidos deben presentar diseño de observación y estudio de muestras de ensayos clínicos de individuos sanos, resultado de la prueba de correlación o asociación entre la postura estática y la movilidad/flexibilidad en el plano sagital, y la escritura en lengua española, inglés o portugués. La calidad metodológica fue evaluada por la escala de Downs & Black y la fuerza de evidencia por el sistema GRADE. Resultados: Se encontraron 5326 estudios, siendo siete incluidos tras el tamizaje de los criterios de elegibilidad, los cuales presentaron elevada calidad metodológica. Sin embargo, es considerable la heterogeneidad en lo que se refiere a la elección de instrumentos y protocolos de evaluación. Por lo tanto, la presente revisión sistemática presenta una moderada fuerza de evidencia. Conclusión: Aún no existen evidencias definitivas sobre las posibles relaciones entre la postura corporal y la flexibilidad y movilidad de la columna vertebral y de la pelvis.

Photogrammetry is a relatively simple and objective instrument of evaluation that provides accurate and reproducible quantitative results, if applied rigorously, existing nowadays several protocols. The main purpose was to systematically review the utilized feet positioning to conduct a semi-static postural evaluation through photogrammetry. It was performed a systematic review of observational studies and clinic trials using the keywords “photogrammetry” and “spinal postural evaluation” to conduct searches on scientific databases. The eligibility criteria adopted were: utilize the photogrammetry to evaluate children, teenagers, adults or elders with or without pathologies; explicit the utilized feet positioning to conduct the evaluation; and be written in English, Portuguese or Spanish. The methodological quality was assessed by Downs and Black scale and the strength of evidence by the best evidence synthesis. It was found 1.786 articles and 40 were included in this review. The main feet positioning found were: self-referred, separated and in parallel, united and in parallel and standard self-referred. The review exhibited strong strength of evidence in the methodological quality assessment. Considering the main feet positioning found, it is considered primordial that the selection of evaluation methodology respects the specific instructions of each analysis protocol or software.