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首页> 外文期刊>The European Journal of Neuroscience >The effect of acute exercise on blood concentrations of brain-derived neurotrophic factor in healthy adults: a meta-analysis
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The effect of acute exercise on blood concentrations of brain-derived neurotrophic factor in healthy adults: a meta-analysis

机译：急性运动对健康成人脑衍生神经营养因子血液浓度的影响：荟萃分析

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It has been hypothesized that one mechanism through which physical activity provides benefits to cognition and mood is via increasing brain-derived neurotrophic factor (BDNF) concentrations. Some studies have reported immediate benefits to mood and various cognitive domains after a single session of exercise. This meta-analysis sought to determine the effect of a single exercise session on concentrations of BDNF in peripheral blood, in order to evaluate the potential role of BDNF in mediating the beneficial effects of exercise on brain health. MEDLINE, Embase, PsycINFO, SPORTDiscus, Rehabilitation & Sports Medicine Source, and CINAHL databases were searched for original, peer-reviewed reports of peripheral blood BDNF concentrations before and after acute exercise interventions. Risk of bias within studies was assessed using standardized criteria. Standardized mean differences (SMDs) were generated from random effects models. Risk of publication bias was assessed using a funnel plot and Egger's test. Potential sources of heterogeneity were explored in subgroup analyses. In 55 studies that met inclusion criteria, concentrations of peripheral blood BDNF were higher after exercise (SMD=0.59, 95% CI: 0.46-0.72, P<0.001). In meta-regression analysis, greater duration of exercise was associated with greater increases in BDNF. Subgroup analyses revealed an effect in males but not in females, and a greater BDNF increase in plasma than serum. Acute exercise increased BDNF concentrations in the peripheral blood of healthy adults. This effect was influenced by exercise duration and may be different across genders.
机译：已经假设了一种机制，体育活动通过其对认知和情绪提供益处是通过增加脑源性的神经营养因子（BDNF）浓度。一些研究报告了在一次锻炼会议后对情绪和各种认知域的直接益处。该荟萃分析试图确定单次运动会对外周血BDNF浓度的影响，以评估BDNF在介导运动对脑健康的有益作用中的潜在作用。搜索了Medline，Embase，Psycinfo，Sportdiscus，康复和体育医学来源以及急性运动干预前后和之后的外周血BDNF浓度的原始报告报告。使用标准化标准评估研究中的偏差风险。标准化平均差异（SMDS）由随机效果模型产生。使用漏斗情节和Egger测试评估出版物偏差的风险。在亚组分析中探讨了潜在的异质性来源。在55项研究中，符合纳入标准的研究中，运动后外周血BDNF的浓度更高（SMD = 0.59,95％CI：0.46-0.72，P <0.001）。在元回归分析中，更高的运动持续时间与BDNF的增加相关。亚组分析揭示了男性的效果，但不是女性，并且比血清更大的BDNF增加。急性运动增加健康成人外周血中的BDNF浓度。这种效应受到运动持续时间的影响，可能在树上不同。

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