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JYMS : Journal of Yeungnam Medical Science

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Review article
Multidisciplinary approach to sarcopenia: a narrative review
Wook Tae Park, Oog-Jin Shon, Gi Beom Kim
J Yeungnam Med Sci. 2023;40(4):352-363.   Published online September 7, 2023
DOI: https://doi.org/10.12701/jyms.2023.00724
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  • 140 Download
AbstractAbstract PDF
Sarcopenia is a condition in which muscle mass and strength are decreased and muscle function is impaired. It is an indicator of frailty and loss of independence in older adults. It is also associated with increased physical disability, which increases the risk of falls. As a multifactorial disease, sarcopenia is caused by a combination of factors including aging, hormonal changes, nutritional deficiencies, and physical inactivity. Understanding the underlying pathophysiology of sarcopenia and identifying its different causes is critical to developing effective prevention and treatment strategies. This review summarizes the pathophysiology, consequences, diagnostic methods, and multidisciplinary approaches to sarcopenia.
Original article
Age-related low skeletal muscle mass correlates with joint space narrowing in knee osteoarthritis in a South Korean population: a cross-sectional, case-control study
Hyun-Je Kim, Young-Hoon Hong
J Yeungnam Med Sci. 2022;39(4):285-293.   Published online February 3, 2022
DOI: https://doi.org/10.12701/jyms.2021.01536
  • 3,574 View
  • 83 Download
  • 2 Web of Science
  • 1 Crossref
AbstractAbstract PDF
Background
This study was conducted to analyze the effects of low skeletal muscle mass index (SMI) and obesity on aging-related osteoarthritis (OA) in the Korean population.
Methods
A total of 16,601 participants who underwent a dual-energy X-ray absorptiometry and 3,976 subjects with knee X-rays according to the modified Kellgren-Lawrence (KL) system were enrolled. Knees of ≥KL grade 2 were classified as radiologic OA. The severity of joint space narrowing (JSN) was classified by X-rays as normal, mild-to-moderate, and severe JSN in radiologic OA. The subjects were grouped as normal SMI (SMI of ≥–1 standard deviation [SD] of the mean), low SMI class I (SMI of ≥–2 SDs and <–1 SD), and low SMI class II (SMI of <–2 SDs). Obesity was defined as a body mass index (BMI) of ≥27.5 kg/m2.
Results
The modified KL grade and JSN severity were negatively correlated with the SMI and positively correlated with BMI and age. The SMI was negatively correlated with age. JSN severity was significantly associated with a low SMI class compared to a normal SMI, which was more prominent in low SMI class II than class I. Obesity was significantly associated with more severe JSN, only for obesity with a low SMI class. Furthermore, patients with a low SMI class, regardless of obesity, were prone to having more severe JSN.
Conclusion
This study suggested that a low SMI class was associated with aging and that an age-related low SMI was more critically related to the severity of JSN in OA.

Citations

Citations to this article as recorded by  
  • Causal relationship between sarcopenia and osteoarthritis: a bi-directional two-sample mendelian randomized study
    Jiyong Yang, Peng Liu, Shuai Wang, Tao Jiang, Yilong Zhang, Wengang Liu
    European Journal of Medical Research.2023;[Epub]     CrossRef

JYMS : Journal of Yeungnam Medical Science