DOI: https://doi.org/10.14710/jgi.0.0.%25p

Relationship between skeletal muscle mass index and length of stay in stroke patient

1Doctoral Program in Medical and Health Science, Faculty of Medicine, Universitas Diponegoro, Central Java, Indonesia

2Clinical Nutrition Department, Faculty of Medicine, Universitas Diponegoro, Semarang, Central Java, Indonesia

3Medical Staff Committee, Neurology, Dr. Kariadi General Hospital, Semarang, Central Java, Indonesia

4 Neurology Department, Faculty of Medicine, Universitas Diponegoro, Semarang, Central Java, Indonesia

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Received: 3 Jul 2025; Revised: 22 Nov 2025; Accepted: 31 Dec 2025; Available online: 4 Feb 2026; Published: 30 Jun 2026.

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Abstract

Background: Sarcopenia is a syndrome characterized by progressive condition and generalized loss of skeletal muscle mass and strength. It is associated with poor prognosis and increased length of stay in stroke patients. Skeletal Muscle Mass Index (SMI) is an important parameter for assessing skeletal muscle mass and the clinical outcomes of stroke patients.

Objective: to examine the relationship between SMI and length of stay in stroke patient.

Materials and Methods: Cross-sectional observational analytical research was conducted at Dr. Kariadi Semarang Hospital from June 2024 to March 2025 in hospitalized stroke patients aged >18 years. Body composition, including skeletal muscle mass, is measured using BIA. Data were analyzed by Independent t-test, Pearson Correlation and Double Linear Regression.

Results: The average length of stay among the 78 individuals (43 males and 35 females) was 11 days. The SMI levels were normal, indicating no sarcopenia.

Conclusion: Skeletal Muscle Mass Index (SMI) was significantly related (p<0.05) with length of stay in stroke patients; the higher the SMI score, the shorter the duration of hospital stay.

 

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Correlation between skeletal muscle mass index and length of stay in stroke patient
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Keywords: length of stay; sarcopenia; skeletal muscle mass index; stroke

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