Factors Affecting in vivo SH and SV Mode Wave Propagation in vastus lateralis Muscle at Varying Knee Flexion Angles Using Ultrasonic Rotational 3D SWEI

To determine the shortening velocities of fascicles of the vastus lateralis muscle (VL) during isokinetic knee extension, six male subjects were requested to extend the knee with maximal effort at angular velocities of 30 and 150°/s. By using an ultrasonic apparatus, longitudinal images of the VL were produced every 30 ms during knee extension, and the fascicle length and angle of pennation were obtained from these images. The shortening fascicle length with extension of the knee (from 98 to 13° of knee angle; full extension = 0°) was greater (43 mm) at 30°/s than at 150°/s (35 mm). Even when the angular velocity remained constant during the isokinetic range of motion, the fascicle velocity was found to change from 39 to 77 mm/s at 150°/s and from 6 to 19 mm/s at 30°/s. The force exerted by a fascicle changed with the length of the fascicle at changing angular velocities. The peak values of fascicle force and velocity were observed at ∼90 mm of fascicle length. In conclusion, even if the angular velocity of knee extension is kept constant, the shortening velocity of a fascicle is dependent on the force applied to the muscle-tendon complex, and the phenomenon is considered to be caused mainly by the elongation of the elastic element (tendinous tissue).

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Behaviour of vastus lateralis muscle-tendon during high intensity SSC exercises in vivo

Acta Physiologica Scandinavica ◽

10.1046/j.1365-201x.2003.01149.x ◽

2003 ◽

Vol 178 (3) ◽

pp. 205-213 ◽

Cited By ~ 64

Author(s):

M. Ishikawa ◽

T. Finni ◽

P. V. Komi

Keyword(s):

High Intensity ◽

Vastus Lateralis ◽

Vastus Lateralis Muscle ◽

Lateralis Muscle

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In vivo behavior of vastus lateralis muscle during dynamic performances

European Journal of Sport Science ◽

10.1080/17461390100071101 ◽

2001 ◽

Vol 1 (1) ◽

pp. 1-13 ◽

Cited By ~ 27

Author(s):

Taija Finni ◽

Shigeki Ikegaw ◽

Vesa Lepola ◽

Paavo Komi

Keyword(s):

Vastus Lateralis ◽

Vastus Lateralis Muscle ◽

Lateralis Muscle ◽

Dynamic Performances

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Determining the Force-Length-Velocity Relations of the Quadriceps Muscles: I. Anatomical and Geometric Parameters

Journal of Applied Biomechanics ◽

10.1123/jab.15.2.182 ◽

1999 ◽

Vol 15 (2) ◽

pp. 182-190 ◽

Cited By ~ 6

Author(s):

John W. Chow ◽

Warren G. Darling ◽

James C. Ehrhardt

Keyword(s):

Magnetic Resonance ◽

Knee Flexion ◽

Vastus Lateralis ◽

Quadriceps Muscle ◽

Vastus Lateralis Muscle ◽

Moment Arm ◽

Anatomical Position ◽

Moment Arms ◽

Effective Moment

The purpose of this study was to determine the coordinates of the origin and insertion, muscle volumes, lengths, lines of action, and effective moment arm of the quadriceps muscles in vivo using magnetic resonance imaging (MRI) and radiography for a pilot study involving musculoskeletal modeling. Two magnetic resonance scans were performed, and axial images were obtained for the left thigh of a female subject in the anatomical position to measure muscle volume, coordinates of the origin and insertion, and muscle belly length at the anatomical position of each quadriceps muscle. Six knee radiographs were used to determine the effective moment arm of the quadriceps force at different knee flexion angles. A combination of MRI and radiography data was used to compute the muscle lengths at different knee flexion angles. The coordinates of the vastus lateralis, muscle volumes of individual quadriceps muscles, and effective moment arms were clearly different from the corresponding values from cadaver data reported in the literature. These comparisons demonstrate the advantages of using personalized muscle parameters instead of those collected from cadavers and dry-bone specimens.

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Relationship between hardness and deformation of the vastus lateralis muscle during knee flexion using ultrasound imaging

Journal of Bodywork and Movement Therapies ◽

10.1016/j.jbmt.2016.08.006 ◽

2017 ◽

Vol 21 (3) ◽

pp. 549-553 ◽

Cited By ~ 1

Author(s):

Shintarou Kudo ◽

Sho Nakamura

Keyword(s):

Ultrasound Imaging ◽

Knee Flexion ◽

Vastus Lateralis ◽

Vastus Lateralis Muscle ◽

Lateralis Muscle

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Homogeneity and reproducibility of in vivo fascicle length and pennation determined by ultrasonography in human vastus lateralis muscle

Science & Sports ◽

10.1016/j.scispo.2006.08.004 ◽

2006 ◽

Vol 21 (5) ◽

pp. 268-272 ◽

Cited By ~ 15

Author(s):

S. Mairet ◽

O. Maïsetti ◽

P. Portero

Keyword(s):

Vastus Lateralis ◽

Vastus Lateralis Muscle ◽

Fascicle Length ◽

Lateralis Muscle

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Ayurvedic management of Myositis Ossificans of Vastus Lateralis Muscle (Urusthamba) - A Case Study

Journal of Ayurveda and Integrated Medical Sciences (JAIMS) ◽

10.21760/jaims.v2i1.7523 ◽

2017 ◽

Vol 2 (1) ◽

Author(s):

Vishnu Mohan ◽

Gopikrishna BJ ◽

Avnish Pathak ◽

Mahesh Kumar ES ◽

Duradundi G

Keyword(s):

Heterotopic Ossification ◽

Myositis Ossificans ◽

Vastus Lateralis ◽

Treatment Protocol ◽

Vastus Lateralis Muscle ◽

Satisfactory Treatment ◽

Lateralis Muscle ◽

Ayurvedic Treatment

Myositis ossificansis characterized by heterotopic ossification (calcification) of muscle of various etiologies. It is most commonly affected in the quadriceps of the thighs. There are many tools available for diagnosis of Myositis ossificans, but lack of satisfactory treatment. So the development of a treatment protocol for Myositis ossificans is the need of today`s era. In Ayurveda, the same can be understood as Urusthamba. The present paper discusses a case of Myositis ossificans of right vastus lateralis muscle and its Ayurvedic treatment.

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