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 clustering-based method for estimating pennation angle from B-mode ultrasound images. [PDF]
Wearable Technol, 2023 Abstract B-mode ultrasound (US) is often used to noninvasively measure skeletal muscle architecture, which contains human intent information. Extracted features from B-mode images can help improve closed-loop human–robotic interaction control when using rehabilitation/assistive devices.
Bao X +4 more
europepmc +4 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
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
Impact of contraction intensity and ankle joint angle on calf muscle fascicle length and pennation angle during isometric and dynamic contractions. [PDF]
Sci RepAbstractDuring muscle contraction, not only are the fascicles shortening but also the pennation angle changes, which leads to a faster contraction of the muscle than of its fascicles. This phenomenon is called muscle gearing, and it has a direct influence on the force output of the muscle.
Coenning C, Rieg V, Siebert T, Wank V.
europepmc +6 more sources
Pennation angle of vastus laterallis during isometric contractions performed at two knee angles [PDF]
Fisioterapia em Movimento, 2017 Abstract Introduction: The pennation angle (PA) of a muscle is not static value, but it adapts to the conditions imposed by the contraction intensity required. Objective: This study investigates the effect of knee angle (KA) and intensity of contraction (IC) on PA of vastus lateralis (VL).
Felipe Torres Miranda de Oliveira +2 more
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Dynamic measurement of pennation angle of gastrocnemius muscles during contractions based on ultrasound imaging [PDF]
BioMedical Engineering OnLine, 2012 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. We have earlier reported an automatic method to estimate aponeurosis orientation based on Gabor transform and Revoting Hough Transform (RVHT).In
Zhou, Y, Li, JZ, Zhou, G, Zheng, YP
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Human gastrocnemius medialis Pennation Angle as a Function of Age: From Newborn to the Elderly.
Journal of PHYSIOLOGICAL ANTHROPOLOGY and Applied Human Science, 2001 The aim of the present study was to quantify changes in human skeletal muscle pennation angle (F theta) values during growth and adult life. The human gastrocnemius medialis muscle of 162 subjects (96 males and 66 females) in the age range 0-70 years was scanned with ultrasonography. The subjects were laying prone, at rest, with the ankle maintained at
Binzoni, Tiziano +6 more
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Change in Gastrocnemius Pennation Angle According to Ankle Dorsiflexion among University Students
Journal of the Korea Academia-Industrial cooperation Society, 2015 본 연구의 목적은 발목관절의 발등굽힘 각도를 $0^{\circ}$ , $10^{\circ}$ , $20^{\circ}$ 로 위치하게 한 후 각 각도에서 장딴지근의 깃각 변화에 미치는 영향을 비교하여 효율적인 장딴지근 신장 각도를 제시하는 것이다. 건강한 성인 남녀 25명을 그 대상으로 하여 발목관절 발등굽힘 각도 $0^{\circ}$ , $10^{\circ}$ , $20^{\circ}$ 에서 초음파 기기를 이용하여 내측 장딴지근의 깃각을 측정하였다. 각도별 장딴지근의 깃각 변화를 알아보기 위해 반복측정분산분석을 성별에 따른 각도별 차이를 알아보기 위해 독립 t 검정을 실시하였다.
Ji-Seon Kim +4 more
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The Change of Pennation Angle of Medial Gastrocnemius on Different Heights of Heels
Indian Journal of Science and Technology, 2016 Objectives This study aims to investigate the effect of pennation angle and surface Electromyography (sEMG) activity of medial gastrocnemius on different heights of high heels by using ultrasonography and sEMG. Methods/Statistical Analysis: Twenty eight healthy young females participate in this study.
So-Min Joo +5 more
openaire +1 more source