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Muscles, Volume 3, Issue 2 (June 2024) – 2 articles

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12 pages, 2080 KiB  
Article
Sarcopenia Identification Using Alternative Vertebral Landmarks in Individuals with Lung Cancer
by Cecily A. Byrne, Giamila Fantuzzi, Jeremy T. Stephan, Sage Kim, Vanessa M. Oddo, Timothy J. Koh and Sandra L. Gomez
Muscles 2024, 3(2), 121-132; https://doi.org/10.3390/muscles3020012 - 16 Apr 2024
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Abstract
(1) Background: Sarcopenia, or low skeletal mass index (SMI), contributes to higher lung cancer mortality. The SMI at third lumbar vertebrae (L3) is the reference standard for body composition analysis. However, there is a need to explore the validity of alternative landmarks in [...] Read more.
(1) Background: Sarcopenia, or low skeletal mass index (SMI), contributes to higher lung cancer mortality. The SMI at third lumbar vertebrae (L3) is the reference standard for body composition analysis. However, there is a need to explore the validity of alternative landmarks in this population. We compared the agreement of sarcopenia identification at the first lumbar (L1) and second lumbar (L2) to L3 in non-Hispanic Black (NHB) and White (NHW) individuals with lung cancer. (2) Methods: This retrospective, cross-sectional study included 214 NHB and NHW adults with lung cancer. CT scans were analyzed to calculate the SMI at L1, L2, and L3. T-tests, chi-square, Pearson’s correlation, Cohen’s kappa, sensitivity, and specificity analysis were used. (3) Results: Subjects presented with a mean age of 68.4 ± 9.9 years and BMI of 26.3 ± 6.0 kg/m2. Sarcopenia prevalence varied from 19.6% at L1 to 39.7% at L3. Cohen’s kappa coefficient was 0.46 for L1 and 0.64 for L2, indicating weak and moderate agreement for the identification of sarcopenia compared to L3. (4) Conclusions: Sarcopenia prevalence varied greatly depending on the vertebral landmark used for assessment. Using L2 or L1 alone resulted in a 16.8% and 23.8% misclassification of sarcopenia in this cohort of individuals with lung cancer. Full article
(This article belongs to the Special Issue Sarcopenia: The Impact on Health and Disease)
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Article
Effects of Coping Strategies on Health-Related Quality of Life of People with Neuromuscular Diseases
by Irune García, Alicia Aurora Rodríguez, Corrado Angelini, Maddalen García-Sanchoyerto, Patricia Espinosa-Blanco and Oscar Martínez
Muscles 2024, 3(2), 110-120; https://doi.org/10.3390/muscles3020011 - 03 Apr 2024
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Abstract
Neuromuscular diseases (NMD) cover a broad spectrum of different rare diagnoses in which the primary lesion is in the peripheral nervous system. The impairment caused by an NMD does not only interfere with physical status but also has a clear impact on health-related [...] Read more.
Neuromuscular diseases (NMD) cover a broad spectrum of different rare diagnoses in which the primary lesion is in the peripheral nervous system. The impairment caused by an NMD does not only interfere with physical status but also has a clear impact on health-related quality of life (HRQoL). It is therefore essential to know the coping style used by these patients. This study aims to analyze the coping strategies in a sample of people with NMD and how their coping style affects their HRQoL. This cross-sectional study included 61 adult patients diagnosed with a rare NMD. WHO-DAS II, SIP, SF-36, and COPE-60 instruments were administered. The results showed that people affected by NMDs tend to use more frequent coping strategies such as active planning, personal growth, and acceptance. In contrast, the least-used strategies were restraint, mental disengagement, venting, humor, and religion, which affected HRQoL negatively. Moreover, the degree of disability was a relevant variable, with an impact on HRQoL. Social support can be considered the main coping strategy that leads to an improvement in the psychosocial HRQoL (β = 503, p < 0.001). These findings are relevant to clinical practice, given the need to understand the coping variable to improve HRQoL. Full article
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