Dynamic measurement of pennation angle of gastrocnemius muscles during contractions based on ultrasound imaging [PDF]
BioMedical Engineering OnLine, 2012 Background Muscle fascicle pennation angle (PA) is an important parameter related to musculoskeletal functions, and ultrasound imaging has been widely used for measuring PA, but manually and frame by frame in most cases.
Zhou Yongjin +3 more
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Architectural Ultrasound Pennation Angle Measurement of Lumbar Multifidus Muscles: A Reliability Study. [PDF]
J Clin Med, 2022 The pennation angle has been shown to be a relevant parameter of muscle architecture. This parameter has not previously been measured in the lumbar multifidus musculature, and it is for this reason that it has been considered of great interest to establish an assessment protocol to generate new lines of research in the future.
Monsalve-Vicente C +7 more
europepmc +7 more sources
A Proactive Technique for Pennation Angle Estimation of Skeletal Muscles Using Ultrasound Imaging
Frontiers in Biomedical TechnologiesPurpose: The concrete construction of the musculoskeletal modeling is efficiently performed using information obtained from patients rather than collected from cadavers. In this study, we have endeavored to propose an automated technique that calculates
Shaima Ibraheem Jabbar +2 more
doaj +2 more sources
Pennation angle of vastus laterallis during isometric contractions performed at two knee angles [PDF]
Fisioterapia em Movimento, 2017 Introduction: The pennation angle (PA) of a muscle is not static value, but it adapts to the conditions imposed by the contraction intensity required.
Felipe Torres Miranda de Oliveira +2 more
doaj +3 more sources
Changes in muscular pennation angle after crenotherapy. [PDF]
Muscles Ligaments Tendons J, 2013 Muscular architecture involves the organization of fibres in the muscle and is one of the most important factors of muscular function. Studies have demonstrated an association with muscular architecture and contraction, with an increase of the pennation angle in muscles.
Brancaccio P +3 more
europepmc +6 more sources
Evaluation of Muscle Mass and Quality With an AI-Based Muscle Ultrasound Imaging System in Patients at Risk of Malnutrition. [PDF]
J Cachexia Sarcopenia MuscleABSTRACT Background Sarcopenia is characterized by the loss of muscle mass, quality and function. Ultrasonography provides a non‐invasive method for assessing sarcopenia. Its generalizability remains limited due to certain methodological and population‐specific challenges.
López-Gómez JJ +10 more
europepmc +2 more sources
Morphological Differences of Knee Extensor Muscles Between Women With and Without Lateral Patellar Compression Syndrome [PDF]
Ṭibb-i Tavānbakhshī, 2022 Background and Aims: The morphology of knee joint extensor muscles including vastus medialis (VM) and vastus lateralis (VL), is one of the important and effective factors in lateral patellar compression syndrome (LPCS).
Seyyed Hossein Hosseini +1 more
doaj +1 more source
A new possible marker: can pennation angle defined by ultrasound predict the frailty? [PDF]
Aging Clin Exp ResAbstract Background Frailty indicates older people who are vulnerable to stressors. The relation between ultrasonographic parameters of muscle and frailty among older people has yet to be investigated. Aims The aim of the study is to investigate the relationship between ...
Yurumez B +13 more
europepmc +3 more sources
The Energy of Muscle Contraction. II. Transverse Compression and Work
Frontiers in Physiology, 2020 In this study we examined how the strain energies within a muscle are related to changes in longitudinal force when the muscle is exposed to an external transverse load.
David S. Ryan +5 more
doaj +1 more source
Frontiers in Physiology, 2022 This study examined the influence of knee extensors’ hip and knee angle on force production capacity and their neuromuscular and architectural consequences.
Yoann M. Garnier +7 more
doaj +1 more source