The strength of associations between ultrasound measures of upper limb muscle morphology and isometric muscle strength: An exploratory study

Introduction/Aims Assessing upper limb muscle strength is important for understanding health outcomes, such as daily function and mortality. Ultrasound (US) is increasingly used to evaluate muscle health, but the relationship between its measures of morphology and isometric strength has not been tho...

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Bibliographic Details
Published in:Muscle & nerve 2024-11, Vol.71 (1), p.73-79
Main Authors: Whang, Christina Q. Y., Debenham, Mathew I. B., Ogalo, Emmanuel, Ro, Hannah J., Wu, Harvey, Berger, Michael J.
Format: Article
Language:English
Subjects:
Adult
Biomarkers
Clinical
Correlation
daily function
Elbow
Evaluation
Female
Healthy Volunteers
Humans
Isometric Contraction - physiology
Limbs
Male
maximal voluntary contraction
Middle Aged
Morphology
Muscle contraction
muscle morphology
Muscle strength
Muscle Strength - physiology
Muscle, Skeletal - anatomy & histology
Muscle, Skeletal - diagnostic imaging
Muscle, Skeletal - physiology
Muscles
Ultrasonic imaging
Ultrasonography
Ultrasound
Upper Extremity - diagnostic imaging
Upper Extremity - physiology
upper limb
Young Adult
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Summary:Introduction/Aims Assessing upper limb muscle strength is important for understanding health outcomes, such as daily function and mortality. Ultrasound (US) is increasingly used to evaluate muscle health, but the relationship between its measures of morphology and isometric strength has not been thoroughly explored in upper limb muscles. The aim of this study was to evaluate the associations between US morphological measures and isometric strength in functionally relevant upper limb muscles in healthy adults. Methods Twenty‐four healthy volunteers (30.0 ± 10.8 years) underwent B‐mode, axial US scans of the first dorsal interosseus (FDI), flexor pollicis longus (FPL), biceps brachii (BB), brachialis (BR), and triceps brachii lateral head (TB). Participants performed corresponding maximal voluntary contractions (MVC), including first digit distal phalanx flexion, second digit abduction, and elbow flexion and extension. US images were segmented to obtain maximal muscle thickness (MT) and cross‐sectional area (CSA). Results Strong positive correlations were found between muscle strength and BB MT (r = .83; p 
ISSN:0148-639X
1097-4598
1097-4598
DOI:10.1002/mus.28297