keyword
MENU ▼
Read by QxMD icon Read
search

Voluntary movement

keyword
https://www.readbyqxmd.com/read/29138504/facilitation-of-information-processing-in-the-primary-somatosensory-area-in-the-ball-rotation-task
#1
Toshiaki Wasaka, Tetsuo Kida, Ryusuke Kakigi
Somatosensory input to the brain is known to be modulated during voluntary movement. It has been demonstrated that the response in the primary somatosensory cortex (SI) is generally gated during simple movement of the corresponding body part. This study investigated sensorimotor integration in the SI during manual movement using a motor task combining movement complexity and object manipulation. While the amplitude of M20 and M30 generated in the SI showed a significant reduction during manual movement, the subsequent component (M38) was significantly higher in the motor task than in the stationary condition...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29127653/development-of-a-3d-workspace-shoulder-assessment-tool-incorporating-electromyography-and-an-inertial-measurement-unit-a-preliminary-study
#2
Navid Aslani, Siamak Noroozi, Philip Davenport, Richard Hartley, Mihai Dupac, Philip Sewell
Traditional shoulder range of movement (ROM) measurement tools suffer from inaccuracy or from long experimental setup times. Recently, it has been demonstrated that relatively low-cost wearable inertial measurement unit (IMU) sensors can overcome many of the limitations of traditional motion tracking systems. The aim of this study is to develop and evaluate a single IMU combined with an electromyography (EMG) sensor to monitor the 3D reachable workspace with simultaneous measurement of deltoid muscle activity across the shoulder ROM...
November 11, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29123488/wearing-compression-tights-on-the-thigh-during-prolonged-running-attenuated-exercise-induced-increase-in-muscle-damage-marker-in-blood
#3
Sahiro Mizuno, Mari Arai, Fumihiko Todoko, Eri Yamada, Kazushige Goto
Purpose: To examine the effects of wearing a lower-body compression garment with different body coverage areas during prolonged running on exercise performance and muscle damage. Methods: Thirty male subjects were randomly assigned to one of three groups: (1) wearing a compression tights with 15 mmHg to thigh [n = 10, CT group], (2) wearing a compression socks with 15 mmHg to calf [n = 10, CS group], and (3) wearing a lower-body garment with < 5 mmHg to thigh and calf [n = 10, CON group]. The exercise consisted of 120 min of uphill running at 55% of [Formula: see text]O2max...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29121943/managing-intra-eu-mobility-do-who-principles-of-ethical-recruitment-have-relevance
#4
Réka Kovács, Edmond Girasek, Eszter Kovács, Zoltán Aszalós, Edit Eke, Károly Ragány, Zoltán Cserháti, Miklós Szócska
BACKGROUND: The WHO Global Code of Practice on the International Recruitment of Health Personnel provides for guidance in health workforce management and cooperation in the international context. This article aims to examine whether the principles of the voluntary WHO Global Code of Practice can be applied to trigger health policy decisions within the EU zone of free movement of persons. METHODS: In the framework of the Joint Action on European Health Workforce Planning and Forecasting project (Grant Agreement: JA EUHWF 20122201 (see healthworkforce...
November 9, 2017: Human Resources for Health
https://www.readbyqxmd.com/read/29113518/functional-semi-blind-source-separation-identifies-primary-motor-area-without-active-motor-execution
#5
Camillo Porcaro, Carlo Cottone, Andrea Cancelli, Carlo Salustri, Franca Tecchio
High time resolution techniques are crucial for investigating the brain in action. Here, we propose a method to identify a section of the upper-limb motor area representation (FS_M1) by means of electroencephalographic (EEG) signals recorded during a completely passive condition (FS_M1bySS). We delivered a galvanic stimulation to the median nerve and we applied to EEG the semi-Blind Source Separation (s-BSS) algorithm named Functional Source Separation (FSS). In order to prove that FS_M1bySS is part of FS_M1, we also collected EEG in a motor condition, i...
September 11, 2017: International Journal of Neural Systems
https://www.readbyqxmd.com/read/29110426/functional-near-infrared-spectroscopy-to-probe-sensorimotor-region-activation-during-electrical-stimulation-evoked-movement
#6
Makii Muthalib, Marco Ferrari, Valentina Quaresima, Graham Kerr, Stephane Perrey
This study used non-invasive functional near-infrared spectroscopy (fNIRS) neuroimaging to monitor bilateral sensorimotor region activation during unilateral voluntary (VOL) and neuromuscular electrical stimulation (NMES)-evoked movements. METHODS: In eight healthy male volunteers, fNIRS was used to measure relative changes in oxyhaemoglobin (O2 Hb) and deoxyhaemoglobin (HHb) concentrations from a cortical sensorimotor region of interest in the left (LH) and right (RH) hemispheres during NMES-evoked and VOL wrist extension movements of the right arm...
November 7, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/29100187/mechanical-muscle-and-tendon-properties-of-the-plantar-flexors-are-altered-even-in-highly-functional-children-with-spastic-cerebral-palsy
#7
Annika Kruse, Christian Schranz, Martin Svehlik, Markus Tilp
BACKGROUND: Recent ultrasound studies found increased passive muscle stiffness and no difference in tendon stiffness in highly impaired children and young adults with cerebral palsy. However, it is not known if muscle and tendon mechanical properties are already altered in highly functional children with cerebral palsy. Therefore, the purpose of this study was to compare the mechanical and material properties of the plantar flexors in highly functional children with cerebral palsy and typically developing children...
October 28, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29100066/neuronal-activity-patterns-in-the-ventral-thalamus-comparison-between-parkinson-s-disease-and-cervical-dystonia
#8
Dmitriy Devetiarov, Ulia Semenova, Svetlana Usova, Alexey Tomskiy, Vladimir Tyurnikov, Dinara Nizametdinova, Artem Gushcha, Elena Belova, Alexey Sedov
OBJECTIVE: The aim of this study was to distinguish neuronal activity patterns in the human ventral thalamus and reveal common and disease-specific features in patients with Parkinson's disease (PD) and cervical dystonia (CD). METHODS: Single unit activity of neurons was recorded during microelectrode-guided thalamotomies. We classified neurons of surgical target and surrounding area into patterns and compared their characteristics and responsiveness to voluntary movement between PD and CD patients...
December 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29094187/area-specific-processing-of-cerebellar-thalamo-cortical-information-in-primates
#9
Abdulraheem Nashef, Hannes Rapp, Martin P Nawrot, Yifat Prut
The cerebellar-thalamo-cortical (CTC) system plays a major role in controlling timing and coordination of voluntary movements. However, the functional impact of this system on motor cortical sites has not been documented in a systematic manner. We addressed this question by implanting a chronic stimulating electrode in the superior cerebellar peduncle (SCP) and recording evoked multiunit activity (MUA) and the local field potential (LFP) in the primary motor cortex ([Formula: see text]), the premotor cortex ([Formula: see text]) and the somatosensory cortex ([Formula: see text])...
November 2, 2017: Biological Cybernetics
https://www.readbyqxmd.com/read/29093545/entrainment-of-voluntary-movement-to-undetected-auditory-regularities
#10
Aaron Schurger, Nathan Faivre, Leila Cammoun, Bianca Trovó, Olaf Blanke
In physics "entrainment" refers to the synchronization of two coupled oscillators with similar fundamental frequencies. In behavioral science, entrainment refers to the tendency of humans to synchronize their movements with rhythmic stimuli. Here, we asked whether human subjects performing a tapping task would entrain their tapping to an undetected auditory rhythm surreptitiously introduced in the guise of ambient background noise in the room. Subjects performed two different tasks, one in which they tapped their finger at a steady rate of their own choosing and one in which they performed a single abrupt finger tap on each trial after a delay of their own choosing...
November 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29090477/analysis-of-masticatory-muscle-coordination-during-unilateral-single-tooth-clenching-using-muscle-functional-magnetic-resonance-imaging
#11
S Yamaguchi, C Okada, Y Watanabe, M Watanabe, Y Hattori
In a previous study, we used muscle functional magnetic resonance imaging to show that the anterior movement of the occlusal point increased the activity of the superior head of the ipsilateral lateral pterygoid muscle (ipsilateral SHLP) during unilateral single-tooth clenching. The purpose of this study was to verify the hypothesis that the increased activity of the ipsilateral SHLP described above serves to antagonise the occlusal force acting on the condyle. In total, 9 healthy volunteers were requested to perform left unilateral clenching at the first molar or first premolar region for 1 minute at 20% or 40% maximum voluntary clenching force...
November 1, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/29080098/gait-bradykinesia-in-parkinson-s-disease-a-change-in-the-motor-program-which-controls-the-synergy-of-gait
#12
Tateo Warabi, Hiroyasu Furuyama, Eri Sugai, Masamichi Kato, Nobuo Yanagisawa
This study examined how gait bradykinesia is changed by the motor programming in Parkinson's disease. Thirty-five idiopathic Parkinson's disease patients and nine age-matched healthy subjects participated in this study. After the patients fixated on a visual-fixation target (conditioning-stimulus), the voluntary-gait was triggered by a visual on-stimulus. While the subject walked on a level floor, soleus, tibialis anterior EMG latencies, and the y-axis-vector of the sole-floor reaction force were examined. Three paradigms were used to distinguish between the off-/on-latencies...
October 27, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/29075186/age-related-changes-in-sensorimotor-temporal-binding
#13
Tiziana Vercillo, Carlos Carrasco, Fang Jiang
The causal relationship between a voluntary movement and a sensory event is crucial for experiencing agency. Sensory events must occur within a certain delay from a voluntary movement to be perceived as self-generated. Therefore, temporal sensitivity, i.e., the ability to discriminate temporal asynchronies between motor and sensory events, is important for sensorimotor binding. Moreover, differences in the physical propagation of external stimuli can sometimes challenge sensorimotor binding, generating illusory asynchrony...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/29074997/motor-recovery-after-activity-based-training-with-spinal-cord-epidural-stimulation-in-a-chronic-motor-complete-paraplegic
#14
Enrico Rejc, Claudia A Angeli, Darryn Atkinson, Susan J Harkema
The prognosis for recovery of motor function in motor complete spinal cord injured (SCI) individuals is poor. Our research team has demonstrated that lumbosacral spinal cord epidural stimulation (scES) and activity-based training can progressively promote the recovery of volitional leg movements and standing in individuals with chronic clinically complete SCI. However, scES was required to perform these motor tasks. Herein, we show the progressive recovery of voluntary leg movement and standing without scES in an individual with chronic, motor complete SCI throughout 3...
October 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29067219/driving-with-hemianopia-v-do-individuals-with-hemianopia-spontaneously-adapt-their-gaze-scanning-to-differing-hazard-detection-demands
#15
Concetta F Alberti, Robert B Goldstein, Eli Peli, Alex R Bowers
PURPOSE: We investigated whether people with homonymous hemianopia (HH) were able to spontaneously (without training or instructions) adapt their blind-side scan magnitudes in response to differing scanning requirements for detection of pedestrians in a driving simulator when differing cues about pedestrian eccentricities and movement behaviors were available in the seeing hemifield. METHODS: Twelve HH participants completed two sessions in a driving simulator pressing the horn when they detected a pedestrian...
September 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/29066662/dysphagia-management-in-bilateral-frontal-opercular-syndrome-foix-chavany-marie-syndrome
#16
Thomas Richards, Thomas Tudor Hughes, Jake Moss, Tessa Lomax
An 80-year-old woman was admitted to hospital with acute anarthria and severe dysphagia, characterised by loss of voluntary control of the muscles of facial expression, mastication, bolus manipulation (tongue) and pharyngeal constriction, with relative preservation of involuntary movements. Brain imaging revealed an acute infarct in the left frontal operculum and an area of gliosis consistent with an old infarct in the right frontal operculum. A clinical and radiological diagnosis of bilateral anterior frontal opercular syndrome (Foix-Chavany-Marie-syndrome) was made...
October 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29062274/monoaminergic-modulation-of-motor-cortex-function
#17
REVIEW
Clément Vitrac, Marianne Benoit-Marand
Elaboration of appropriate responses to behavioral situations rests on the ability of selecting appropriate motor outcomes in accordance to specific environmental inputs. To this end, the primary motor cortex (M1) is a key structure for the control of voluntary movements and motor skills learning. Subcortical loops regulate the activity of the motor cortex and thus contribute to the selection of appropriate motor plans. Monoamines are key mediators of arousal, attention and motivation. Their firing pattern enables a direct encoding of different states thus promoting or repressing the selection of actions adapted to the behavioral context...
2017: Frontiers in Neural Circuits
https://www.readbyqxmd.com/read/29062267/design-and-preliminary-feasibility-study-of-a-soft-robotic-glove-for-hand-function-assistance-in-stroke-survivors
#18
Hong Kai Yap, Jeong Hoon Lim, Fatima Nasrallah, Chen-Hua Yeow
Various robotic exoskeletons have been proposed for hand function assistance during activities of daily living (ADL) of stroke survivors. However, traditional exoskeletons involve the use of complex rigid systems that impede the natural movement of joints, and thus reduce the wearability and cause discomfort to the user. The objective of this paper is to design and evaluate a soft robotic glove that is able to provide hand function assistance using fabric-reinforced soft pneumatic actuators. These actuators are made of silicone rubber which has an elastic modulus similar to human tissues...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29061169/the-effect-of-transcranial-direct-current-stimulation-tdcs-on-locomotion-and-balance-in-patients-with-chronic-stroke-study-protocol-for-a-randomised-controlled-trial
#19
M Geiger, A Supiot, R Zory, P Aegerter, D Pradon, N Roche
BACKGROUND: Following stroke, patients are often left with hemiparesis that reduces balance and gait capacity. A recent, non-invasive technique, transcranial direct current stimulation, can be used to modify cortical excitability when used in an anodal configuration. It also increases the excitability of spinal neuronal circuits involved in movement in healthy subjects. Many studies in patients with stroke have shown that this technique can improve motor, sensory and cognitive function...
October 23, 2017: Trials
https://www.readbyqxmd.com/read/29060834/robot-assisted-mirroring-exercise-as-a-physical-therapy-for-hemiparesis-rehabilitation
#20
Jihun Kim, Jaehyo Kim
The paper suggests a therapeutic device for hemiparesis that combines robot-assisted rehabilitation and mirror therapy. The robot, which consists of a motor, a position sensor, and a torque sensor, is provided not only to the paralyzed wrist, but also to the unaffected wrist to induce a symmetric movement between the joints. As a user rotates his healthy wrist to the direction of either flexion or extension, the motor on the damaged side rotates and reflects the motion of the normal side to the symmetric angular position...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
keyword
keyword
72034
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"