Gustavo Dias Bottari, Giulianna Faypher Morena Vieira da Silva, Tamy Colonetti, Maria Inês da Rosa, Fernanda Marçal de Lago, Joni Márcio de Farias, Antonio Jose Grande
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引用次数: 0
Abstract
Purpose
Low-intensity resistance training combined with blood flow restriction (LIBFR) has been proposed as an alternative to conventional resistance training, but its effects on bone metabolism remain unclear. This review compared LIBFR with high-intensity resistance training (HIRT), low-intensity resistance training (LIRT) and non-exercise on bone formation and resorption markers and bone mineral density (BMD).
Methods
MEDLINE (PubMed), Cochrane Library (CENTRAL), EMBASE, APA and Global Health (EBSCO) were searched up to 20th May 2026 for clinical trials in adults assessing bone-specific alkaline phosphatase (BSAP), cross-linked C-telopeptides of type I collagen (CTX-I) or BMD. Risk of bias was assessed with RoB 2 and certainty of evidence with GRADE. Meta-analyses were performed where applicable.
Results
Eight studies (nine reports; n = 211 participants) were included. Compared with HIRT, LIBFR resulted in significantly lower BSAP (MD = −2.72 [95% CI −5.17 to −0.28]) and CTX-I (MD = −0.08 [95% CI −0.13 to −0.03]), with no difference in BMD. Compared with LIRT, BSAP and CTX-I did not differ, but BMD was significantly higher in a single study (MD = 0.04 [95% CI 0.03 to 0.05]). Compared with non-exercise, LIBFR significantly reduced CTX-I and BMD, with no difference in BSAP. The certainty of evidence was very low for all comparisons.
Conclusion
LIBFR reduced BSAP and CTX-I compared with HIRT, and CTX-I compared with non-exercise. BMD findings were mixed: higher versus LIRT, similar versus HIRT and lower versus non-exercise. Given the very low certainty of evidence, these findings should be interpreted with caution.
期刊介绍:
Advances in Medical Sciences is an international, peer-reviewed journal that welcomes original research articles and reviews on current advances in life sciences, preclinical and clinical medicine, and related disciplines.
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Advances in Medical Sciences publishes articles which bring novel insights into diagnostic and molecular imaging, offering essential prior knowledge for diagnosis and treatment indispensable in all areas of medical sciences. It also publishes articles on pathological sciences giving foundation knowledge on the overall study of human diseases. Through its publications Advances in Medical Sciences also stresses the importance of pharmaceutical sciences as a rapidly and ever expanding area of research on drug design, development, action and evaluation contributing significantly to a variety of scientific disciplines.
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