J Med Internet Res:社交媒体如何帮助网民减肥?

2021-04-10 MedSci原创 MedSci原创

肥胖是心血管疾病的一种已知的危险因素,包括高血压和II型糖尿病。虽然许多减肥干预措施已经证明可降低心血管疾病风险,但关于它们起作用的理论机制的证据却很少。

肥胖是血管疾病的一种已知的危险因素,包括高血压和II型糖尿病。虽然许多减肥干预措施已经证明可降低心血管疾病风险,但关于它们起作用的理论机制的证据却很少。

通过社交媒体提供生活方式行为改变干预,为理解干预效果的机制提供了独特的机会。直接从基于网络的平台收集的服务器数据可以在干预计划过程中提供详细的实时行为信息,这些信息可用于了解干预措施的工作原理。

近日最新发表在“J Med Internet Res”上的一项研究“Social Network Analysis of the Effects of a Social Media-Based Weight Loss Intervention Targeting Adults of Low Socioeconomic Status: Single-Arm Intervention Trial”,展示了社交网络分析如何帮助我们理解基于社交媒体的减肥干预的潜在机制。

研究人员利用一项先导研究的数据进行了二次分析,通过Facebook对一组参与者进行饮食和体力活动干预。研究人员绘制了参与者在12周干预期内的互动网络,并通过回归分析将参与者的网络特征(如入度、出度、网络约束)与参与者在理论中的介变量(即饮食知识、感知社会支持、自我效能感)和减肥方面的变化联系起来。此外,研究人员还进行了中介分析,以探索社会网络措施对减肥的影响如何通过上述理论中介来介导的。

干预组的评论网络

总体上,共47名参与者完成了研究被纳入分析。分析结果显示,在Facebook上的发帖、评论和回复数量的增加可以显著预测体重减轻(β=-0.94,P=0.04);接受评论对自我效能感的变化有正向预测作用(β=7.81,P=0.009);网络邻居彼此紧密联系的程度,对感受到的社会支持的变化有较弱的预测作用(β=7.70,P=0.08)。此外,自我效能感的改变在接受评论和减肥之间的关系中起到了中介作用(β=-0.89,P=0.02)

自我效能变化程度对减肥的间接影响

综上所述,该研究采用先导研究的数据将参与者的网络特征与几个重要研究结果(如自我效能、社会支持和体重)的变化进行了相关性分析。研究结果指出了利用社会网络分析来理解基于网络的行为干预影响参与者心理和行为结果的社会过程和机制的潜力。未来有必要进一步开展相关研究已验证本研究结果,并在类似和更大规模的试验中进一步探索网络动力学和研究结果之间的相关性。

原始出处:

Xu Ran,Cavallo David,Social Network Analysis of the Effects of a Social Media-Based Weight Loss Intervention Targeting Adults of Low Socioeconomic Status: Single-Arm Intervention Trial. J Med Internet Res, 2021, 23: e24690.

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    2021-10-18 canlab
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    2021-04-12 fengyi818
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    2021-04-10 CHANGE

    什么时候有懒人用的减肥神药?

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=1734346, encodeId=119f1e3434609, content=<a href='/topic/show?id=d4f412668a4' target=_blank style='color:#2F92EE;'>#NET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12668, encryptionId=d4f412668a4, topicName=NET)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=7ea033781210, createdName=canlab, createdTime=Mon Oct 18 06:04:49 CST 2021, time=2021-10-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1603464, encodeId=bb3e160346485, content=<a href='/topic/show?id=657ce391325' target=_blank style='color:#2F92EE;'>#社交#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73913, encryptionId=657ce391325, topicName=社交)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=004519034290, createdName=fengyi818, createdTime=Mon Apr 12 06:04:49 CST 2021, time=2021-04-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1610998, encodeId=153d1610998ea, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11459, encryptionId=eb6b1145939, topicName=Med)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=552a19396740, createdName=ms3994565386320060, createdTime=Mon Apr 12 06:04:49 CST 2021, time=2021-04-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1048367, encodeId=64ca104836ee6, content=什么时候有懒人用的减肥神药?, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=CHANGE, createdTime=Sat Apr 10 18:04:49 CST 2021, time=2021-04-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=955703, encodeId=0291955e0335, content=好文章!, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160806/IMG57A5698BDB0244113.jpg, createdBy=32a91358059, createdName=jyzxjiangqin, createdTime=Sat Apr 10 15:20:12 CST 2021, time=2021-04-10, status=1, ipAttribution=)]
    2021-04-10 jyzxjiangqin

    好文章!

    0

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