Exercise and Rehabilitation Sciences Institute, School of Physical Therapy, Faculty of Rehabilitation Sciences, Universidad Andres Bello, Santiago, Chile.
Department of Education & SPORT Research Group (CTS-1024), CIBIS Research Center, University of Almería, Almería, Spain.
Obes Rev. 2024 Sep;25(9):e13790. doi: 10.1111/obr.13790. Epub 2024 Jun 10.
Obesity is a major health burden worldwide. Although bariatric surgery (BS) is recognized as an effective strategy for weight loss and comorbidities improvement, its impact on muscle strength and quality is still unclear. We aimed to examine postoperative changes in muscle strength and quality and their relationship with body mass index (BMI) changes among adults undergoing BS. To this end, we systematically searched the WoS, PubMed, EBSCO, and Scopus databases. The meta-analyses, which included 24 articles (666 participants), showed that BS reduces absolute lower-limb isometric strength (ES = -0.599; 95% CI = -0.972, -0.226; p = 0.002). Subjects who experienced a more significant reduction in BMI after BS also suffered a higher loss of absolute muscle strength. Similarly, absolute handgrip strength showed a significant decrease (ES = -0.376; 95% CI = -0.630, -0.121; p = 0.004). We found insufficient studies investigating medium- and long-term changes in muscle strength and/or quality after BS. This study provides moderate-quality evidence that BS-induced weight loss can reduce the strength of appendicular muscles in the short term, which should be addressed in management these subjects. More high-quality studies are needed to evaluate the impact of BS on muscle strength and the different domains of muscle quality in the medium and long term (registered on PROSPERO CRD42022332581).
肥胖是全球范围内的一个主要健康负担。尽管减重手术（BS）被认为是减轻体重和改善合并症的有效策略，但它对肌肉力量和质量的影响仍不清楚。我们旨在研究成年人接受 BS 后肌肉力量和质量的术后变化及其与体重指数（BMI）变化的关系。为此，我们系统地搜索了 WoS、PubMed、EBSCO 和 Scopus 数据库。包括 24 篇文章（666 名参与者）的荟萃分析表明，BS 降低了下肢等长绝对力量（ES=-0.599；95%CI=-0.972，-0.226；p=0.002）。BS 后 BMI 下降幅度较大的受试者，其绝对肌肉力量也会下降较多。同样，绝对握力也明显下降（ES=-0.376；95%CI=-0.630，-0.121；p=0.004）。我们发现研究 BS 后肌肉力量和/或质量的中长期变化的研究还不够。本研究提供了中等质量的证据，表明 BS 诱导的体重减轻可在短期内降低四肢肌肉的力量，在管理这些患者时应注意这一点。需要更多高质量的研究来评估 BS 对肌肉力量和肌肉质量不同领域的影响，以及中、长期的影响（在 PROSPERO 注册，CRD42022332581）。
