Chao Hai-Lun
Department of Health Care Administration, Chung-Hwa University of Medical Technology, Tainan, Taiwan.
PLoS One. 2015 May 6;10(5):e0124036. doi: 10.1371/journal.pone.0124036. eCollection 2015.
To report the results of a systematic review and meta-analysis examining whether weight loss interventions improve body image in obese/overweight individuals. Medline, Current Contents, and the Cochrane database were searched to identify studies involving obese/overweight adults who were enrolled in weight loss interventions in which body image was quantitatively assessed. Outcomes assessed were changes in body shape concern, body size dissatisfaction, and body satisfaction (intervention vs comparator/control group). Seven studies were included in the systematic review (4 in the meta-analysis). All but 1 study involved female participants only. The type of weight loss intervention varied between studies as did the type of control/comparator group. In 3 studies, there was no significant difference in body image outcomes, whereas in 4 studies, improvement in body image was significantly more pronounced in the intervention vs the control/comparator group. Meta-analysis revealed that improvements in body shape concern (standardized difference: -0.52; 95% confidence interval [CI]: -1.04 to 0.00), body size dissatisfaction (standardized difference: -0.66; 95% CI: -0.88 to -0.45), and body satisfaction (standardized difference: 0.74; 95% CI: 0.09 to 1.38) significantly favored the intervention over the comparator/control group (P<0.05). The results of this systematic review/meta-analysis lend support to the notion that weight loss interventions may improve body image. This is a noteworthy finding that has clear clinical applicability because body image affects psychological well-being and the ability of an individual to maintain weight loss. Future research should determine which weigh loss interventions are associated with optimal improvements in body image and maintenance of weight loss.
报告一项系统评价和荟萃分析的结果,该分析旨在研究减肥干预措施是否能改善肥胖/超重个体的身体意象。检索了医学文献数据库(Medline)、《现刊目次》(Current Contents)和考克兰数据库,以确定涉及参与减肥干预措施且对身体意象进行定量评估的肥胖/超重成年人的研究。评估的结果包括对身体形状的关注、对身体尺寸的不满以及身体满意度(干预组与比较组/对照组)。系统评价纳入了7项研究(荟萃分析纳入4项)。除1项研究外,其余均仅涉及女性参与者。不同研究之间的减肥干预类型以及对照/比较组类型各不相同。在3项研究中,身体意象结果无显著差异,而在4项研究中,与对照/比较组相比,干预组的身体意象改善更为明显。荟萃分析显示,在对身体形状的关注(标准化差异:-0.52;95%置信区间[CI]:-1.04至0.00)、对身体尺寸的不满(标准化差异:-0.66;95%CI:-0.88至-0.45)和身体满意度(标准化差异:0.74;95%CI:0.09至1.38)方面,干预组显著优于比较组/对照组(P<0.05)。该系统评价/荟萃分析的结果支持了减肥干预措施可能改善身体意象这一观点。这是一个值得关注的发现,具有明确的临床适用性,因为身体意象会影响心理健康以及个体维持减肥效果的能力。未来的研究应确定哪些减肥干预措施与身体意象的最佳改善及减肥效果的维持相关。