Faculty of Physical Education and Sport Sciences, Allameh Tabataba'i University, Tehran, Iran.
Department of Corrective Exercise & Sport Injury, Faculty of Physical Education and Sport Sciences, Allameh Tabataba'i University, Western Azadi Sport Complex Boulevard, Hakim Highway, Tehran, Iran.
BMC Public Health. 2023 Aug 30;23(1):1670. doi: 10.1186/s12889-023-16617-4.
To estimate the possible associations between posture and physical activity (PA).
A systematic review and meta-analysis.
The search was conducted in seven databases (PubMed, Web of Science, SportDiscus, EMBASE, Scopus, Cochrane Library, and CINAHL) for studies published from inception to January 2023.
Studies were required to meet following criteria: (1) study design: cross-sectional, case control and cohort studies. (2) Participants: people of all ages without any diagnosed diseases. (3) Exposure and outcome: studies that examined the possible effect or correlations between PA, physical inactivity, physical exertion and human body posture.
Sixteen cross-sectional studies, two cohort studies and one case control study involving a total of 16772 participants aged from 6 to 79 years were included. Correlational studies showed that there was a significant relationship between PA and posture (C = 0.100, CI 95% = 0.012-0.186). However, regression studies demonstrated that there was not a significant association between PA and posture (C = 1.00, CI 95% = 0.998-1.002). Three studies investigated the association between PA and the lumbar lordosis and showed that there was not a significant association between the lordosis and PA (CI 95%: -0.253-0.048, P = 0.180). In addition, four studies showed that there were not any associations between scoliosis and PA (CI 95%: 0.819, 1.123, P = 0.607). The evidence of heterogeneity and publication bias was found among all analyzed data (P < 0.05). Also, meta regression was used for age and BMI and the results were not significant.
Although a weak correlation was shown to exist between PA and human posture, the odds ratio indicated that there was not a significant association between PA and human posture. The lack of a significant relationship may indicate that multiple biopsychosocial factors may be involved in human posture. In summary, our study highlights the need for caution when interpreting the results of meta-analyses, particularly when there is significant heterogeneity and publication bias in the included studies.
评估姿势与身体活动（PA）之间可能存在的关联。
系统评价和荟萃分析。
从开始到 2023 年 1 月，在 7 个数据库（PubMed、Web of Science、SportDiscus、EMBASE、Scopus、Cochrane Library 和 CINAHL）中进行了搜索。
（1）研究设计：横断面、病例对照和队列研究。（2）参与者：无任何诊断疾病的各年龄段人群。（3）暴露和结局：研究检查 PA、身体活动不足、身体用力与人体姿势之间可能存在的影响或相关性。
纳入了 16 项横断面研究、2 项队列研究和 1 项病例对照研究，共涉及 16772 名年龄在 6 至 79 岁的参与者。相关性研究表明，PA 与姿势之间存在显著关系（C=0.100，95%CI 为 0.012-0.186）。然而，回归研究表明，PA 与姿势之间没有显著关联（C=1.00，95%CI 为 0.998-1.002）。三项研究调查了 PA 与腰椎前凸的关系，结果表明前凸与 PA 之间没有显著关联（95%CI：-0.253-0.048，P=0.180）。此外，四项研究表明脊柱侧凸与 PA 之间没有任何关联（95%CI：0.819、1.123，P=0.607）。所有分析数据均存在异质性和发表偏倚证据（P<0.05）。此外，年龄和 BMI 的元回归结果不显著。
尽管 PA 与人体姿势之间显示出微弱的相关性，但优势比表明 PA 与人体姿势之间没有显著关联。缺乏显著的关系可能表明人体姿势可能涉及多种生物心理社会因素。总之，我们的研究强调在解释荟萃分析结果时需要谨慎，特别是当纳入研究存在显著异质性和发表偏倚时。
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