Kinematic study of whole body center of mass position during gait in Parkinson's disease patients with and without festination

2010 ◽  
Vol 25 (6) ◽  
pp. 747-754 ◽  
Author(s):  
Marcelo Merello ◽  
Natalia Fantacone ◽  
Jorge Balej
Paleobiology ◽  
2020 ◽  
Vol 46 (4) ◽  
pp. 550-568
Author(s):  
Peter J. Bishop ◽  
Karl T. Bates ◽  
Vivian R. Allen ◽  
Donald M. Henderson ◽  
Marcela Randau ◽  
...  

AbstractThroughout their 250 Myr history, archosaurian reptiles have exhibited a wide array of body sizes, shapes, and locomotor habits, especially in regard to terrestriality. These features make Archosauria a useful clade with which to study the interplay between body size, shape, and locomotor behavior, and how this interplay may have influenced locomotor evolution. Here, digital volumetric models of 80 taxa are used to explore how mass properties and body proportions relate to each other and locomotor posture in archosaurs. One-way, nonparametric, multivariate analysis of variance, based on the results of principal components analysis, shows that bipedal and quadrupedal archosaurs are largely distinguished from each other on the basis of just four anatomical parameters (p < 0.001): mass, center of mass position, and relative forelimb and hindlimb lengths. This facilitates the development of a quantitative predictive framework that can help assess gross locomotor posture in understudied or controversial taxa, such as the crocodile-line Batrachotomus (predicted quadruped) and Postosuchus (predicted biped). Compared with quadrupedal archosaurs, bipedal species tend to have relatively longer hindlimbs and a more caudally positioned whole-body center of mass, and collectively exhibit greater variance in forelimb lengths. These patterns are interpreted to reflect differing biomechanical constraints acting on the archosaurian Bauplan in bipedal versus quadrupedal groups, which may have shaped the evolutionary histories of their respective members.


2018 ◽  
Vol 3 (8) ◽  

Dance is basically a complex physical activity which either casually or formally organized in which people take part for fitness, health and well-being, social relationships or competition and a worldwide human activity that involves complex whole body movements through space synchronized to music. Dance-related reviews of evidence have examined the effectiveness of dance therapy on psychological and physical health and well-being outcomes in patients with cancer, for schizophrenia, and on depression. Dance therapy was officially described firstly in 1948. The medical application of dance therapy was well reviewed in neurologic conditions. Dance has been used extensively for the treatment of gait and balance dysfunction in individuals with Parkinson’s disease. Especially, Argentine tango is the most frequently employed dance form in the treatment of Parkinson’s disease. Tango therapy may hold promise as an intervention to improve gait, balance, and mobility in a variety of neurological conditions. Tango therapy was approached from dance therapy to the current status of medical application. A more systemic analysis of tango movement for proper and effective therapeutic application of tango is necessary for medical purposes.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Emmanuelle Bellot ◽  
Antoine Garnier-Crussard ◽  
Elodie Pongan ◽  
Floriane Delphin-Combe ◽  
Marie-Hélène Coste ◽  
...  

AbstractSome of the behavioral disorders observed in Parkinson’s disease (PD) may be related to an altered processing of social messages, including emotional expressions. Emotions conveyed by whole body movements may be difficult to generate and be detected by PD patients. The aim of the present study was to compare valence judgments of emotional whole body expressions in individuals with PD and in healthy controls matched for age, gender and education. Twenty-eight participants (13 PD patients and 15 healthy matched control participants) were asked to rate the emotional valence of short movies depicting emotional interactions between two human characters presented with the “Point Light Displays” technique. To ensure understanding of the perceived scene, participants were asked to briefly describe each of the evaluated movies. Patients’ emotional valence evaluations were less intense than those of controls for both positive (p < 0.001) and negative (p < 0.001) emotional expressions, even though patients were able to correctly describe the depicted scene. Our results extend the previously observed impaired processing of emotional facial expressions to impaired processing of emotions expressed by body language. This study may support the hypothesis that PD affects the embodied simulation of emotional expression and the potentially involved mirror neuron system.


Author(s):  
Eduardo Guadarrama-Molina ◽  
Carlos Enrique Barrón-Gámez ◽  
Ingrid Estrada-Bellmann ◽  
Jesús D. Meléndez-Flores ◽  
Paola Ramírez-Castañeda ◽  
...  

2017 ◽  
Vol 1 (suppl_1) ◽  
pp. 752-752
Author(s):  
V. Southard ◽  
S. Roumba ◽  
I. Schwartz ◽  
N. Sparacino ◽  
K. Weddingfeld ◽  
...  

2019 ◽  
Vol 266 (6) ◽  
pp. 1376-1382 ◽  
Author(s):  
Poonam Zham ◽  
Dinesh Kumar ◽  
Rekha Viswanthan ◽  
Kit Wong ◽  
Kanae J. Nagao ◽  
...  

Proceedings ◽  
2020 ◽  
Vol 49 (1) ◽  
pp. 60
Author(s):  
Sohei Washino ◽  
Akihiko Murai ◽  
Hirotoshi Mankyu ◽  
Yasuhide Yoshitake

We examined the association between changes in swimming velocity, vertical center of mass (CoM) position, and projected frontal area (PFA) during maximal 200-m front crawl. Three well-trained male swimmers performed a single maximal 200-m front crawl in an indoor 25-m pool. Three-dimensional (3D) shape data of the whole body were fitted to 3D motion data during swimming by using inverse kinematics computation to estimate PFA accurately. Swimming velocity decreased, the vertical CoM position was lowered, and PFA increased with swimming distance. There were significant correlations between swimming velocity and vertical CoM position (|r| = 0.797–0.982) and between swimming velocity and PFA (|r| = 0.716–0.884) for each swimmer. These results suggest that descent of the swimmer’s body and increasing PFA with swimming distance are associated with decreasing swimming velocity, although the causal factor remains unclear.


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