Article
Characterization of the structural and mechanical changes of the biceps brachii and gastrocnemius muscles in the subacute and chronic stage after stroke
Author/s | García-Bernal, María-Isabel
González García, Paula Madeleine, Pascal Casuso-Holgado, María Jesús Heredia Rizo, Alberto Marcos |
Department | Universidad de Sevilla. Departamento de Fisioterapia |
Publication Date | 2023-01-12 |
Deposit Date | 2023-06-01 |
Published in |
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Abstract | The objective of this study was to characterize the changes of muscle tone, stiffness, and
thickness of upper and lower limb muscles in stroke survivors. Forty patients with subacute or
chronic stroke and 31 controls ... The objective of this study was to characterize the changes of muscle tone, stiffness, and thickness of upper and lower limb muscles in stroke survivors. Forty patients with subacute or chronic stroke and 31 controls were included and measured using myotonometry (MyotonPRO), with multiple site assessments at muscle belly (MB) and musculotendinous (MT) locations of the biceps brachii and gastrocnemius muscles. Muscle thickness (ultrasonography) was obtained for each muscle. Upper and lower limb motor performance was evaluated with the Fugl–Meyer Assessment for Upper Extremity and the Functional Ambulance Category. Overall, muscle tone and stiffness were significantly higher at MT than at MB sites. Among stroke patients, differences between the paretic and nonparetic limb were found for the biceps brachii, with lower muscle tone, stiffness, and thickness of the paretic side (all, p < 0.05). There were weak to moderate correlations between mechanical (myotonometry) and structural (ultrasound) muscular changes, regardless of the post-stroke stage. This suggests that myotonometry and ultrasonography assess similar, although different, constructs and can be combined in the clinical setting. Their discriminative ability between the paretic and nonparetic sides and between participants with and without stroke differs depending on the muscle, the functional level, and the stroke stage. |
Funding agencies | Comité Ético de la Junta de Andalucía para la investigación biomédica |
Project ID. | CI 1222-N-16 |
Citation | García-Bernal, M., González García, P., Madeleine, P., Casuso-Holgado, M.J. y Heredia Rizo, A.M. (2023). Characterization of the structural and mechanical changes of the biceps brachii and gastrocnemius muscles in the subacute and chronic stage after stroke. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 20 (2), 1405. https://doi.org/10.3390/ijerph20021405. |
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