A5032869683- Stroke Rehabilitation and Recovery
- Transcranial Magnetic Stimulation Studies
- Muscle activation and electromyography studies
- Botulinum Toxin and Related Neurological Disorders
- Musculoskeletal pain and rehabilitation
- Motor Control and Adaptation
- Neuroscience and Neural Engineering
- Advanced Neuroimaging Techniques and Applications
- EEG and Brain-Computer Interfaces
- Pain Management and Treatment
- Anesthesia and Pain Management
- Neural dynamics and brain function
- Acute Ischemic Stroke Management
- Mosquito-borne diseases and control
- Diversity and Career in Medicine
- Pregnancy-related medical research
- Mentoring and Academic Development
- Cerebral Palsy and Movement Disorders
- Telemedicine and Telehealth Implementation
- Viral Infections and Vectors
- Dengue and Mosquito Control Research
- Medical Practices and Rehabilitation
Northwestern University
2008-2022
Hospital Santiago Oriente - Dr. Luis Tisne Brousse
2022
Autonomous University of Yucatán
2012
Currently, hand rehabilitation following stroke tends to focus on mildly impaired individuals, partially due the inability for severely subjects sufficiently use paretic hand. Device-assisted interventions offer a means include this more severe population and show promising behavioral results. However, ability demonstrate neural plasticity, crucial factor in functional recovery effective post-stroke interventions, remains unclear. This study aimed investigate changes related function induced...
The effect of reticular formation excitability on maximum voluntary torque (MVT) generation and associated muscle activation at the shoulder elbow was investigated through natural elicitation (active head rotation) asymmetric tonic neck reflex (ATNR) in 26 individuals with stroke 9 age-range-matched controls. Isometric MVT quantified rotated (face pointing) contralateral ipsilateral to paretic (stroke) dominant (control) arm. Given dominance abnormal coupling flexion abduction (flexion...
Progressive abduction loading therapy has emerged as a promising exercise in stroke rehabilitation to systematically target the loss of independent joint control (flexion synergy) individuals with chronic moderate/severe upper-extremity impairment. Preclinical investigations have identified during reaching key therapeutic factor improve function. An augmentative approach may be additionally weakness by incorporating resistance training increase constitutive torques goal improving function...
In chronic hemiparetic stroke, increased shoulder abductor activity causes involuntary increases in elbow, wrist and finger flexor activation, an abnormal muscle coactivation pattern known as the flexion synergy. Recent evidence suggests that synergy expression may reflect recruitment of contralesional cortico-reticulospinal motor pathways following damage to ipsilesional corticospinal tract. However, because reticulospinal produce relatively weak post-synaptic potentials motoneurons, it is...
Ipsilateral-projecting corticobulbar pathways, originating primarily from secondary motor areas, innervate the proximal and even distal portions, although they branch more extensively at spinal cord. It is currently unclear to what extent these ipsilateral areas subsequent cortical projections may contribute hand function following stroke-induced damage one hemisphere. In present study, we provide both structural functional evidence indicating that individuals increasingly rely on detriment...
This case study demonstrates the change of sensory cortical representations residual parts arm in an individual who underwent a trans-humeral amputation and subsequent targeted reinnervation (TR). As relatively new surgical technique, TR restores direct neural connection from amputated sensorimotor nerves to specific target muscles. method has been successfully applied upper-limb lower-limb amputees, shown effectiveness regaining control signals via newly re-innervated Correspondingly,...
The Upper Extremity Fugl-Meyer Assessment (UEFMA, maximum 66) is widely used in clinics and research studies to examine poststroke upper extremity (UE) impairment. This study aimed develop provide pilot data support the validity of a remote version UEFMA UE impairment after stroke through telerehabilitation.
We report the collection of Aedes aegypti, Culex quinquefasciatus, Cx. interrogator, thriambus, coronator, and salinarius larvae from storm sewers within an endemic area for dengue transmission in Merida, Mexico, during rainy season 2011. This is first record vector Ae. aegypti breeding southeast Mexico.
Brain-machine interfaces (BMIs) translate brain signals into control for an external device, such as a computer cursor or robotic limb. These can be obtained either noninvasively invasively. Invasive recordings, using electrocorticography (ECoG) intracortical microelectrodes, provide higher bandwidth and more informative signals. Rehabilitative BMIs, which aim to drive plasticity in the enhance recovery after injury, have almost exclusively used non-invasive electroencephalography (EEG)...
Reaching function is impaired following stroke due to abnormal coupling of shoulder abduction and elbow flexion. This phenomenon commonly referred as flexion synergy, loss independent joint control, or individuation. We have been successful in treating individuals with chronic moderate severe motor impairments through the employment targeted rehabilitation robotics identified progressive loading a key element reaching. Here we expand upon investigation therapy by testing two variants...
Background. Many individuals with moderate and severe stroke are unable to use their paretic hand. Currently, the effect of conventional therapy on regaining meaningful hand function in this population is limited. Efforts have been made brain-machine interfaces (BMIs) control function. To date, almost all BMI classification algorithms designed for detecting movements a resting arm. However, many functional require simultaneous arm Arm movement will possibly affect detection intended...
This case study demonstrates the ability of sensory cortical representations to remap following arm amputation and subsequent targeted reinnervation (TR). Previous human studies have demonstrated functional plasticity in primary cortex months or years after upper arm, forearm, hand a single finger, replantation. Targeted reinnervation, surgical procedure that re-routes inactive, residual sensorimotor nerves previously responsible for innervating missing limb alternative muscle groups skin...
There is a considerable literature on arm/hand dysfunction post stroke, but little information the participants' opinions about perceived and desired strength, recovery, function.The objective of this study was to examine perceptions individuals with stroke function training devices.A 69-item survey developed addressing: activity before after involved function, willingness use device, important device characteristics. The included items from Hand Function Strength Subscales Stroke Impact...
Abstract Recent findings have shown connections of ipsilateral cortico-reticulospinal tract (CRST), predominantly originating from secondary motor areas, to not only proximal but also distal portions the arm. In unilateral stroke, CRST side is intact and thus has been proposed as a possible backup system for post-stroke rehabilitation even hand. We argue that although areas can provide control joints, it insufficient either hand or coordinated shoulder movements due its extensive branching...
Chronic pain after cesarean is a common problem, underdiagnosed and undertreated.In international studies, it has an average incidence of 18% with clear increase in patients associated risk factors.In Chile, there are no multicenter studies that evaluate the or factors condition chronic section.Chile currently caesarean section rate 45%, well above OECD average.Considering data on sections percentage who would suffer from post-cesarean cost to health pain, we calculate Chile this problem...