Rupturen des Musculus gastrocnemius medialis: Diagnose mittels hochauflösendem Ultraschall

2008 ◽  
Vol 19 (05) ◽  
pp. 230-233 ◽  
Author(s):  
A. Dessl ◽  
G. Bodner ◽  
P. Springer ◽  
M. Rieger ◽  
R. Bale ◽  
...  
Author(s):  
Olexiy Melnychuk ◽  
Olexandr Motuziuk ◽  
Svitlana Shvayko ◽  
Svitlana Zay

In this article was investigated the development progressive fatigue dynamic of isolated natively musculus gastrocnemius medialis during tetanic contraction in alcoholic rats (n = 15). Registration of tetanic contraction of the isolated muscular preparation was registered in the isometric mode, during it’s direct electric stimulation. The results of research shows the absence of significant changes in isolated natively musculus gastrocnemius medialis development progressive fatigue in alcoholic rats, in comparison to intact animals.


2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Charlotte Richter ◽  
Bjoern Braunstein ◽  
Benjamin Staeudle ◽  
Julia Attias ◽  
Alexander Suess ◽  
...  

AbstractVigorous exercise countermeasures in microgravity can largely attenuate muscular degeneration, albeit the extent of applied loading is key for the extent of muscle wasting. Running on the International Space Station is usually performed with maximum loads of 70% body weight (0.7 g). However, it has not been investigated how the reduced musculoskeletal loading affects muscle and series elastic element dynamics, and thereby force and power generation. Therefore, this study examined the effects of running on the vertical treadmill facility, a ground-based analog, at simulated 0.7 g on gastrocnemius medialis contractile behavior. The results reveal that fascicle−series elastic element behavior differs between simulated hypogravity and 1 g running. Whilst shorter peak series elastic element lengths at simulated 0.7 g appear to be the result of lower muscular and gravitational forces acting on it, increased fascicle lengths and decreased velocities could not be anticipated, but may inform the development of optimized running training in hypogravity. However, whether the alterations in contractile behavior precipitate musculoskeletal degeneration warrants further study.


1986 ◽  
Vol 187 (2) ◽  
pp. 247-258 ◽  
Author(s):  
R. D. Woittiez ◽  
Y. F. Heerkens ◽  
P. A. Huijing ◽  
W. H. Rijnsburger ◽  
R. H. Rozendal

2008 ◽  
Vol 28 ◽  
pp. S114-S115
Author(s):  
N. Aggeloussis ◽  
E. Giannakou ◽  
K. Albracht ◽  
A. Arampatzis

2018 ◽  
Vol 33 (4) ◽  
pp. 231-237
Author(s):  
Encarnación Liébana ◽  
Cristina Monleón ◽  
Raquel Morales ◽  
Carlos Pablos ◽  
Consuelo Moratal ◽  
...  

Dancers are subjected to high-intensity workouts when they practice dancesport, and according to the literature, they are prone to injury, primarily of the lower limbs. The purpose of this study was to determine whether differences exist in relative activation amplitudes for dancers involved in dancesport due to muscle, gender, and type of dance. Measurements were carried out using surface electromyography equipment during the choreography of a performance in the following leg muscles: rectus femoris, biceps femoris, tibialis anterior, and gastrocnemius medialis. Eight couples of active dancesport athletes (aged 20.50±2.75 yrs) were analyzed. Significant gender differences were found in rumba in the tibialis anterior (p≤0.05) and gastrocnemius medialis (p≤0.05). Based on the different activations, it is possible to establish possible mechanisms of injury, as well as tools for preventing injuries and improving sports performance.


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