scholarly journals Stiffness and Viscosity of the Vastus Lateralis Muscle in Cycling Exercises at Low Constant Power Output

2018 ◽  
Vol 7 (0) ◽  
pp. 124-130 ◽  
Author(s):  
Takanori Uchiyama ◽  
Kaito Saito
Keyword(s):  
Power Output ◽  
Vastus Lateralis ◽  
Vastus Lateralis Muscle ◽  
Constant Power ◽  
Lateralis Muscle ◽  
Constant Power Output

scholarly journals The effect of muscle-tendon unit vs. fascicle analyses on vastus lateralis force-generating capacity during constant power output cycling with variable cadence

2018 ◽  
Vol 124 (4) ◽  
pp. 993-1002 ◽  
Author(s):  
Scott F. Brennan ◽  
Andrew G. Cresswell ◽  
Dominic J. Farris ◽  
Glen A. Lichtwark
Keyword(s):  
Power Output ◽  
Vastus Lateralis ◽  
Muscle Mechanics ◽  
Maximum Force ◽  
Contractile Element ◽  
Constant Power ◽  
Generating Capacity ◽  
Force Velocity ◽  
Length Changes ◽  
Constant Power Output

The maximum force-generating capacity of a muscle is dependent on the lengths and velocities of its contractile apparatus. Muscle-tendon unit (MTU) length changes can be estimated from joint kinematics; however, contractile element length changes are more difficult to predict during dynamic contractions. The aim of this study was to compare vastus lateralis (VL) MTU and fascicle level force-length and force-velocity relationships, and dynamic muscle function while cycling at a constant submaximal power output (2.5 W/kg) with different cadences. We hypothesized that manipulating cadence at a constant power output would not affect VL MTU shortening, but significantly affect VL fascicle shortening. Furthermore, these differences would affect the predicted force capacity of the muscle. Using an isokinetic dynamometer and B-mode ultrasound (US), we determined the force-length and force-velocity properties of the VL MTU and its fascicles. In addition, three-dimensional kinematics and kinetics of the lower limb, as well as US images of VL fascicles were collected during submaximal cycling at cadences of 40, 60, 80, and 100 rotations per minute. Ultrasound measures revealed a significant increase in fascicle shortening as cadence decreased (84% increase across all conditions, P < 0.01), whereas there were no significant differences in MTU lengths across any of the cycling conditions (maximum of 6%). The MTU analysis resulted in greater predicted force capacity across all conditions relative to the force-velocity relationship ( P < 0.01). These results reinforce the need to determine muscle mechanics in terms of separate contractile element and connective tissue length changes during isokinetic contractions, as well as dynamic movements like cycling. NEW & NOTEWORTHY We demonstrate that vastus lateralis (VL) muscle tendon unit (MTU) length changes do not adequately reflect the underlying fascicle mechanics during cycling. When examined across different pedaling cadence conditions, the force-generating potential measured only at the level of MTU (or joint) overestimated the maximum force capacity of VL compared with analysis using fascicle level data.

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

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.

Vastus lateralis muscle volume prediction in early-adolescent boys

2021 ◽  
pp. 110735
Author(s):  
Theresa Domroes ◽  
Gunnar Laube ◽  
Sebastian Bohm ◽  
Adamantios Arampatzis ◽  
Falk Mersmann
Keyword(s):  
Vastus Lateralis ◽  
Muscle Volume ◽  
Early Adolescent ◽  
Vastus Lateralis Muscle ◽  
Adolescent Boys ◽  
Lateralis Muscle

scholarly journals Lactate dehydrogenase is not a mitochondrial enzyme in human and mouse vastus lateralis muscle

2002 ◽  
Vol 541 (2) ◽  
pp. 575-580 ◽  
Author(s):  
Hans N. Rasmussen ◽  
Gerrit Hall ◽  
Ulla F. Rasmussen
Keyword(s):  
Lactate Dehydrogenase ◽  
Vastus Lateralis ◽  
Vastus Lateralis Muscle ◽  
Mitochondrial Enzyme ◽  
Lateralis Muscle ◽  
Human And Mouse

Repair of Recurrent Cleft Palate with Free Vastus Lateralis Muscle Flap

2012 ◽  
Vol 49 (2) ◽  
pp. 245-248 ◽  
Author(s):  
Jose G. Christiano ◽  
Amir H. Dorafshar ◽  
Eduardo D. Rodriguez ◽  
Richard J. Redett
Keyword(s):  
Cleft Palate ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Vastus Lateralis ◽  
Muscle Flap ◽  
Free Flaps ◽  
Vastus Lateralis Muscle ◽  
Oronasal Fistula ◽  
Lateralis Muscle ◽  
Palate Repair

A 6-year-old girl presented with a large recalcitrant oronasal fistula after bilateral cleft lip and palate repair and numerous secondary attempts at fistula closure. Incomplete palmar arches precluded a free radial forearm flap. A free vastus lateralis muscle flap was successfully transferred. No fistula recurrence was observed at 18 months. There was no perceived thigh weakness. The surgical scar healed inconspicuously. Free flaps should no longer be considered the last resort for treatment of recalcitrant fistulas after cleft palate repair. A free vastus lateralis muscle flap is an excellent alternative, and possibly a superior option, to other previously described free flaps.

Pedicled chimeric sensitive fasciocutaneous anterolateral thigh (ALT) and vastus lateralis muscle (VLM) flap for groin defect reconstruction: A case report

Microsurgery ◽  
2017 ◽  
Vol 38 (4) ◽  
pp. 423-426 ◽  
Author(s):  
Mario F. Scaglioni ◽  
Alberto Franchi ◽  
Pietro Giovanoli
Keyword(s):  
Case Report ◽  
Vastus Lateralis ◽  
Vastus Lateralis Muscle ◽  
Defect Reconstruction ◽  
Anterolateral Thigh ◽  
Lateralis Muscle
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