Practical Geriatrics ›› 2025, Vol. 39 ›› Issue (7): 693-697.doi: 10.3969/j.issn.1003-9198.2025.07.009

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Relationship of sarcopenia with lung function in elderly patients with type 2 diabetes mellitus

ZHANG Shaohong, ZHANG Ling, WANG Mengxi, SUN Mengyue, LU Peng,ZHAO Songqing, WANG Weimin   

  1. Department of Geriatrics, the Affiliated Huai’an First People’s Hospital of Nanjing Medical University, Huai’an 223300, China
  • Received:2024-11-13 Online:2025-07-20 Published:2025-07-22
  • Contact: WANG Weiming, Email: weiminwang2480@sina.cn

Abstract: Objective To investigate the correlation between sarcopenia and lung function in the elderly patients with type 2 diabetes mellitus (T2DM). Methods A total of 250 elderly T2DM patients treated in the Geriatric Department of Huai’an First People’s Hospital from January 2023 to September 2024 were enrolled in this study. Based on the presence of sarcopenia, the subjects were divided into sarcopenia group(75 cases) and non-sarcopenia group (175 cases). The differences in general data, related indexes of muscle measurements and lung function were compared between the two groups. Correlation analysis was performed to investigate the factors associated with lung function in the elderly T2DM patients. Results The levels of walking speed and grip strength, body mass index (BMI), hemoglobin, lymphocyte count, forced expiratory volume in 1 second (FEV1), and FEV1/ forced vital capacity (FVC) in sarcopenia group were significantly lower than those in non-sarcopenia group (P<0.05). The duration of T2DM, and the levels of fasting plasma glucose (FPG), glycosylated hemoglobin (HbA1c) and alanine aminotransferase (ALT) were significantly higher than those in non-sarcopenia group (P<0.05). In sarcopenia group, FEV1 and FEV1/FVC showed significant negative correlations with age and T2DM duration (P<0.05), while showing positive correlations with BMI, grip strength, gait speed, and muscle mass (0.5<r<0.8, P<0.05). In non-sarcopenia group, FEV1 and FEV1/FVC were weakly correlated with grip strength, gait speed, and muscle mass (0.3<r<0.5, P<0.05). Multivariate linear regression analysis showed that age, duration of T2DM, and sarcopenia were independent factors associated with FEV1 and FEV1/FVC in the elderly T2DM patients. Conclusions The risk of lung function decline in the elderly T2DM patients with sarcopenia is higher than that in non-sarcopenia patients. Early screening and effective intervention for sarcopenia are crucial for preventing and managing pulmonary dysfunction complications in the elderly T2DM patients.

Key words: type 2 diabetes mellitus, sarcopenia, lung function, correlation

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