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3. TRIBUTE:Dejan B. Popović (1950-2021)

Author

Popović‐Maneski, Lana, Došen, Strahinja, Popović, Miloš R., Azevedo, Christine, Keller, Thierry, Ferrante, Simona, Bergeron, Vance, and Milosevic, Matija

Subjects
Functional Electrical Stimulation, professors, biomedicine, University of Belgrade, obituaries
Abstract

Dr. Dejan B. Popović passed away on October 4, 2021, in Belgrade, Serbia. At the funeral, on October 8, he was accompanied by his favorite song by Frank Sinatra, “My way,” which perfectly described his life. He was a retired professor of Biomedical Engineering at the Faculty of Electrical Engineering, University of Belgrade, Serbia, a full member of the Serbian Academy of Sciences and Arts, an Emeritus professor of Rehabilitation Engineering at Aalborg University in Denmark, and an Associate Member of the Slovenian Academy of Sciences and Arts.

Published
2022

4. Dejan B. Popović (1950–2021)

Author

Popović‐Maneski, Lana, primary, Došen, Strahinja, additional, Popovic, Milos R., additional, Azevedo, Christine, additional, Keller, Thierry, additional, Ferrante, Simona, additional, Bergeron, Vance, additional, and Milosevic, Matija, additional

Published
2022
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6. Experimental BIPedal Walking

Author

Azevedo, Christine, Andreff, Nicolas, Arias, Soraya, Espiau, Bernard, Siciliano, Bruno, editor, Khatib, Oussama, editor, Groen, Frans, editor, and Dario, Paolo, editor

Published
2003
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10. Artificial locomotion control: from human to robotslg

Author

Azevedo, Christine, Poignet, Philippe, and Espiau, Bernard

Subjects
Bipedal robots -- Analysis, Robots -- Technology application, Technology application, Robot, Computers
Abstract

A study was conducted to examine the simultaneous synthesis and control of walking gaits for biped robots. The study aims at proposing an adaptable and reactive control law for two-legged robots using human locomotion as a reference.

Published
2004

20. Capacités rythmiques des patients parkinsoniens avec freezing

Author

Puyjarinet, Frédéric, primary, Geny, Christian, additional, Azevedo, Christine, additional, Sjobert, Benoît, additional, Bégel, Valentin, additional, Verna, Claudia, additional, Cock, Valérie Cochen de, additional, Bardy, Benoît, additional, and Bella, Simone Dalla, additional

Published
2017
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22. Le site de référence du Partenariat européen d’innovation pour un vieillissement actif et en bonne santé MACVIA-LR (contre les maladies chroniques pour un vieillissement en bonne santé en Languedoc-Roussillon)

Author

Bousquet, Jean, primary, Bourret, Rodolphe, additional, Camuzat, Thierry, additional, Augé, Philippe, additional, Domy, Philippe, additional, Bringer, Jacques, additional, Best, Nicolas, additional, Jonquet, Olivier, additional, de la Coussaye, Jean-Emmanuel, additional, Noguès, Michel, additional, Robine, Jean-Marie, additional, Avignon, Antoine, additional, Blain, Hubert, additional, Combe, Bernard, additional, Dray, Gérard, additional, Dufour, Vincent, additional, Fouletier, Mireille, additional, Giraudeau, Nicolas, additional, Hève, Didier, additional, Jeandel, Claude, additional, Laffont, Isabelle, additional, Larrey, Dominique, additional, Laune, Daniel, additional, Laurent, Cyril, additional, Mares, Pierre, additional, Marion, Chantal, additional, Pastor, Eric, additional, Pélissier, Jacques-Yvon, additional, Radier-Pontal, Françoise, additional, Reynes, Jacques, additional, Royère, Emilie, additional, Ychou, Marc, additional, Bedbrook, Anna, additional, Granier, Sophie, additional, Abecassis, Frédéric, additional, Albert, Sylvie, additional, Adnet, Paule, additional, Alomène, Bernard, additional, Amouyal, Michel, additional, Arnavieilhe, Sylvie, additional, Asteriou, Trias, additional, Attalin, Vincent, additional, Aubas, Pierre, additional, Azevedo, Christine, additional, Badin, Mélanie, additional, Bakhti, Karima, additional, Baptista, Gregory, additional, Bardy, Benoit, additional, Battesti, Marie-Pierre, additional, Bénézet, Olivier, additional, Bernard, Pierre-Louis, additional, Berr, Claudine, additional, Berthe, Jacquie, additional, Bobia, Xavier, additional, Bockaert, Joël, additional, Boegner, Catherine, additional, Boichot, Sylvie, additional, Bonnin, Huei-Yune, additional, Boulet, Philippe, additional, Bouly, Stéphane, additional, Boubakri, Chokri, additional, Bourdin, Arnaud, additional, Bourrain, Jean-Luc, additional, Bourrel, Gérard, additional, Bouix, Vincent, additional, Breuker, Cyril, additional, Bruguière, Valérie, additional, Burille, Jacques, additional, Cade, Stéphane, additional, Caimmi, Davide, additional, Calmels, Marie-Virginie, additional, Camu, William, additional, Canovas, Gérard, additional, Carre, Véronique, additional, Cavalli, Giacomo, additional, Cayla, Guillaume, additional, Chiron, Raphaël, additional, Claret, Pierre-Géraud, additional, Coignard, Pauline, additional, Coroian, Flavia-Oana, additional, Costa, David, additional, Costa, Pierre, additional, Cottalorda, Jérome, additional, Coulet, Bertrand, additional, Coupet, Anne-Laure, additional, Courrouy-Michel, Marie-Christine, additional, Courtet, Philippe, additional, Cristol, Jean-Paul, additional, Cros, Valérie, additional, Cuisinier, Frédéric, additional, Daien, Claire, additional, Danko, Marianna, additional, Dauenhauer, Philippe, additional, Dauzat, Michel, additional, David, Miren, additional, Davy, Jean-Marc, additional, Delignières, Didier, additional, Demoly, Pascal, additional, Desplan, Matthieu, additional, Dhivert-Donnadieu, Henriette, additional, Dujol, Pierre, additional, Dupeyron, Arnaud, additional, Dupeyron, Gérard, additional, Engberink, Oude, additional, Enjalbert, Michel, additional, Fattal, Charles, additional, Fernandes, Jérôme, additional, Fesler, Pierre, additional, Fraisse, Philippe, additional, Froger, Jérôme, additional, Gabrion, Philippe, additional, Galano, Emilie, additional, Gellerat-Rogier, Marion, additional, Gellis, Anthony, additional, Goucham, Arnaud-Yves, additional, Gouzi, Fares, additional, Gressard, Florence, additional, Gris, Jean-Christophe, additional, Guillot, Bernard, additional, Guiraud, David, additional, Handweiler, Valérie, additional, Hantkié, Olivier, additional, Hayot, Maurice, additional, Hérisson, Christian, additional, Heroum, Cherif, additional, Hoa, Didier, additional, Jacquemin, Sylvain, additional, Jaber, Samir, additional, Jakovenko, Dominique, additional, Jorgensen, Christophe, additional, Journot, Laurent, additional, Kaczorek, Michel, additional, Kouyoumdjian, Pascal, additional, Labauge, Pierre, additional, Landreau, Liliane, additional, Lapierre, Martine, additional, Leblond, Catherine, additional, Léglise, Marie-Suzanne, additional, Lemaitre, Jean-Marc, additional, Le Moing, Vincent, additional, Le Quellec, Alain, additional, Leclercq, Françoise, additional, Lehmann, Sylvain, additional, Lognos, Béatrice, additional, Lussert, Jean-Marc, additional, Makinson, Alain, additional, Mandrick, Kevin, additional, Marmelat, Vincent, additional, Martin-Gousset, Pierre, additional, Matheron, Amélie, additional, Mathieu, Gwen, additional, Meissonnier, Marc, additional, Mercier, Grégoire, additional, Messner, Patrick, additional, Meunier, Cyril, additional, Mondain, Michel, additional, Punta-Morales, Raul, additional, Morel, Jacques, additional, Morquin, David, additional, Mottet, Denis, additional, Nérin, Philippe, additional, Nicolas, Pierre, additional, Ninot, Gregory, additional, Nouvel, Fabrice, additional, Ortiz, Jean-Paul, additional, Paccard, Delphine, additional, Pandraud, Guillaume, additional, Pasdelou, Marie-Pierre, additional, Pasquié, Jean-Luc, additional, Patte, Karine, additional, Perrey, Stéphane, additional, Pers, Yves-Marie, additional, Picot, Marie-Christine, additional, Pin, Jean-Philippe, additional, Pinto, Nathalie, additional, Porte, Emilie, additional, Portejoie, Fabienne, additional, Pujol, Jean-Louis, additional, Quantin, Xavier, additional, Quéré, Isabelle, additional, Raffort, Nathalie, additional, Ramdani, Sofiane, additional, Ribstein, Jean, additional, Rédini-Martinez, Isabelle, additional, Richard, Sylvain, additional, Ritchie, Karen, additional, Riso, Jean-Pierre, additional, Rivier, François, additional, Rolland, Christine, additional, Roubille, François, additional, Sablot, Denis, additional, Savy, Jean-Luc, additional, Schifano, Laurent, additional, Senesse, Pierre, additional, Sicard, Roland, additional, Soua, Baya, additional, Stephan, Yannick, additional, Strubel, Denise, additional, Sultan, Ariane, additional, Taddei-Ologeanu, Roxana, additional, Tallon, Guillaume, additional, Tanfin, Michel, additional, Tassery, Hervé, additional, Tavares, Isabel, additional, Torre, Kjerstin, additional, Touchon, Jacques, additional, Tribout, Vincent, additional, Uziel, Alain, additional, Van de Perre, Philippe, additional, Vasquez, Xavier, additional, Verdier, Jean-Michel, additional, Vergne-Richard, Céline, additional, Vergotte, Grégoire, additional, Vian, Laurence, additional, Viarouge-Reunier, Christine, additional, Vialla, François, additional, Viart, Frédéric, additional, Villain, Max, additional, Villiet, Maxime, additional, Viollet, Emilie, additional, Wojtusciszyn, Anne, additional, Aoustin, Martine, additional, Bourquin, Christian, additional, and Mercier, Jacques, additional

Published
2015
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23. Motion-capture system to assess intraoperative staff movements and door openings: Impact on surrogates of the infectious risk in surgery

Author

Birgand, Gabriel, Azevedo, Christine, Rukly, Stephane, Pissard-Gibollet, Roger, Toupet, Gaëlle, Timsit, Jean-François, and Lucet, Jean-Christophe

Abstract

AbstractObjectives:We longitudinally observed and assessed the impact of the operating room (OR) staff movements and door openings on surrogates of the exogenous infectious risk using a new technology system.Design and setting:This multicenter observational study included 13 ORs from 10 hospitals, performing planned cardiac and orthopedic surgery (total hip or knee replacement). Door openings during the surgical procedure were obtained from data collected by inertial sensors fixed on the doors. Intraoperative staff movements were captured by a network of 8 infrared cameras. For each surgical procedure, 3 microbiological air counts, longitudinal particles counts, and 1 bacteriological sample of the wound before skin closure were performed. Statistics were performed using a linear mixed model for longitudinal data.Results:We included 34 orthopedic and 25 cardiac procedures. The median frequency of door openings from incision to closure was independently associated with an increased log100.3 µm particle (ß, 0.03; standard deviation [SD], 0.01; P= .01) and air microbial count (ß, 0.07; SD, 0.03; P= .03) but was not significantly correlated with the wound contamination before closure (r = 0.13; P= .32). The number of persons (ß, −0.08; SD, 0.03; P< .01), and the cumulated movements by the surgical team (ß, 0.0004; SD, 0.0005; P< .01) were associated with log100.3 µm particle counts.Conclusions:This study has demonstrated a previously missing association between intraoperative staff movements and surrogates of the exogenous risk of surgical site infection. Restriction of staff movements and door openings should be considered for the control of the intraoperative exogenous infectious risk.

Published
2019
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26. Contribution of Group Ia Afferents to Soleus EMG After an Imposed Vertical Acceleration during Quiet Standing

Author

Azevedo, Christine, Ushiba, J., van Doornik, Johannes, Sinkjær, Thomas, Artificial movement and gait restoration (DEMAR), Inria Sophia Antipolis - Méditerranée (CRISAM), Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier (LIRMM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier (LIRMM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Inria Sophia Antipolis - Méditerranée (CRISAM), Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), and Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Inria Sophia Antipolis - Méditerranée (CRISAM)

Subjects
ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2004

30. O novo jogo de uma velha raposa

Author

Xavier, Ana Maria, Farias, Ana Paula, Florêncio, Carla Soraya, Azevedo, Christine Rocha de, Parente, Christiane, Nogueira, Djane, Carvalho, Eleuda de, Lima, José Maurício, Rodrigues, Karine, Pinto, Leonardo, Queiroz, Luciana, Xavier, Luziania, Costa, Mauro, Barros, Roberta Manuela, Salgado, José Ronaldo Aguiar, and Jesuíno, Geraldo

Subjects
Prefeitura, Medicina, Política
Abstract

MAGALHÃES, Juraci. O novo jogo de uma velha raposa. Revista Entrevista, Fortaleza, n. 4, p. 3-14, fev. 1994. Entrevista concedida a Ana Maria Xavier, Ana Paula Farias, Carla Soraya Florêncio, Christine Rocha de Azevedo, Cristiane Parente, Djane Nogueira, Eleuda de Carvalho, José Mauricio Lima, Karine Rodrigues, Leonardo Pinto, Luciana Queiroz, Luziania Xavier, Mauro Costa e Roberta Manuela Barros. Acostumado com o anonimato político, Juraci Vieira de Magalhães, 62 anos, conseguiu com apenas um mandato de prefeito (cargo que assumiu por causa da candidatura de Ciro Gomes ao Governo do Estado), se tornar um dos homens públicos mais populares da.história do Ceará. Juraci recebeu a prefeitura ofuscado pelo brilho de um jovem político em ascensão -- como era o caso de Ciro Gomes -- e conseguiu superar as melhores expectativas. [...]

Published
1994

34. Sensorimotor control in a simplified artificial context to improve the control of future myoelectric prosthesis

Author

Couraud, Mathilde, Goullet de Rugy, Aymar, Azevedo, Christine, Cattaert, Daniel, Hug, François, Danion, Frédéric, Roby-Brami, Agnès, and STAR, ABES

Subjects
Human-Machine interface, Prothèse myoélectrique, Tracking movement, Contrôle sensorimoteur, Interface homme-Machine, Machine learning, [SCCO.NEUR] Cognitive science/Neuroscience, Contraction isométrique, Poursuite de cible, Apprentissage automatique, Sensorimotor control, Isometric contraction, Myoelectric prosthesis
Abstract

Upper limb amputation, although quite rare, induces enormous loss of autonomy for patients in most daily life activities. To overcome this loss, current myoelectric prosthesis offers a multitude of possible movements. However, current controls of these movements are typically non-intuitive and cognitively demanding, leading to a high abandon rate in response to the long and tedious learning involved. In this thesis, we aimed at identifying difficulties and gaps associated with myoelectric controls when compared to natural sensorimotor control, with the long term goal of informing the design of better solutions for prosthesis control. To do so, we manipulated several experimental conditions in a simplified human-machine interface, where non-amputated subjects controlled a cursor on a computer screen from isometric contractions, i.e. muscle contractions produced in the absence of joint movement. This isometric condition was designed to get closer to a situation in which an amputee controls a myoelectric prosthesis using electrical activity (EMG) of his/her residual muscles, without movement of the missing limb. During aiming movements, we demonstrated the benefits of adapting the decoder that translate muscle activities into cursor movement in conjunction with the own subject’s adaptation of the planned movement direction in response to oriented perturbations. Furthermore, these benefits were showed to be even more important as the artificial decoder adaptation was inspired by the modeled adaptation of a human. In reaching and tracking movements toward fixed and moving targets, which increasingly involve online movement regulations, we revealed the importance of an immediate congruency between sensorimotor information and the cursor position on the screen for timely and efficient corrections. For conditions in which the level of noise associated with the control signal is relatively low, such as when using force that is more stable than the usual EMG signal used, this congruency partly explains the better performance obtained with zero order control (i.e. position) when compared to first order control (i.e. velocity). However, when the noise level increases, as is the case with EMG signals, the filtering property associated with the integration involved in a velocity control elicits better performances than with a position control. Taken together, these results suggest that intuitive and adaptive decoder, that supplies and judiciously complements natural sensorimotor feedback loops, is promising to facilitate future prosthesis controls., L'amputation du membre supérieur, dont la prévalence est comparable à celle des maladies orphelines, induit chez les patients une perte considérable d'autonomie dans la majorité des tâches simples de la vie quotidienne. Pour pallier ces difficultés, les prothèses myoélectriques actuelles proposent une multitude de mouvements possibles. Cependant, leur contrôle non intuitif et lourd cognitivement requiert un apprentissage long et difficile, qui pousse une proportion importante de patients amputés à l'abandon de la prothèse. Dans cette thèse, nous avons cherché à identifier l'origine des difficultés et les manques du contrôle myoélectrique en comparaison au contrôle sensorimoteur naturel, dans le but à terme de proposer de meilleures solutions de restitution et de suppléance. Pour cela, nous avons manipulé diverses conditions expérimentales dans un contexte d'interface homme-machine simplifié où des sujets non amputés contrôlent un curseur sur un écran à partir de contractions isométriques, i.e. des contractions qui n'engendrent pas de mouvement. Cette condition isométrique nous a permis de nous approcher de la condition de la personne amputée contrôlant sa prothèse à partir de l'activité électrique (EMG) de ses muscles résiduels, en absence de mouvement articulaire. Durant une tâche d'atteinte de cible, nous avons entre autre démontré le bénéfice d'une adaptation conjointe du décodeur qui traduit les activités EMG en mouvement du curseur, venant s'ajouter à la propre adaptation du plan de mouvement des sujets en réponse à des perturbations orientées. De plus, il a été mis en évidence que ce bénéfice est d'autant plus important que la dynamique d'adaptation artificielle du décodeur s'inspire de celle de l'Homme. Dans des tâches d'acquisition et de poursuite de cible, impliquant davantage les mécanismes de régulation en ligne du mouvement, nous avons mis en évidence l'importance d'une congruence immédiate entre les informations sensorimotrices et la position du curseur à l'écran pour permettre des corrections rapides et efficaces. Dans une condition où le niveau de bruit du système est relativement faible, comme avec l'utilisation du signal de forces plus stable que l'habituel signal EMG, cette congruence explique, en partie, la supériorité d'un contrôle d'ordre 0 (i.e. position) sur un contrôle d'ordre 1 (i.e.} vitesse). Cependant, dès lors que le niveau de bruit est trop important, ce qui est le cas avec le signal EMG, le filtrage induit par l'intégration nécessaire au contrôle vitesse fait que celui-ci devient plus performant que le contrôle position. L'ensemble de ces résultats suggèrent qu'un décodeur adaptatif et intuitif, respectant et suppléant au mieux les boucles du contrôle sensorimoteur naturel, est le plus à même de faciliter le contrôle des futures prothèses.

35. Breathing detection from tracheal sounds in both temporal and frequency domains in the context of phrenic nerve stimulation.

Author

Lu X, Guiraud D, Renaux S, Similowski T, and Azevedo C

Subjects
Electric Stimulation, Humans, Hypoventilation, Respiration, Artificial, Trachea, Monitoring, Physiologic instrumentation, Phrenic Nerve, Respiration, Sleep Apnea, Central
Abstract

Electrical stimulation of the phrenic nerves via implanted devices allows to counteract some disadvantages of mechanical ventilation in patients with high tetraplegia or Ondine's syndrome. Existing devices do not allow to monitor breathing or to adapt the electroventilation to patients' actual needs. A reliable breathing monitor with an inbuilt alarm function would improve patient safety. In our study, a real-time acoustic breathing detection method is proposed as a possible solution to improve implanted phrenic stimulation. A new algorithm to process tracheal sounds has been developed. It combines breathing detection in both temporal and frequency domains. The algorithm has been applied on recordings from 18 healthy participants. The obtained average sensitivity, specificity and accuracy of the detection are: 99.31%, 96.84% and 98.02%, respectively. These preliminary results show a first positive proof of the interest of such an approach. Additional experiments are needed, including longer recordings from individuals with tetraplegia or Ondine Syndrome in various environments to go further in the validation.

Published
2019
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