AIMC Topic: Ankle Joint

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Abnormal synergistic gait mitigation in acute stroke using an innovative ankle-knee-hip interlimb humanoid robot: a preliminary randomized controlled trial.

Scientific reports Nov 24, 2021
Abnormal spasticity and associated synergistic patterns are the most common neuromuscular impairments affecting ankle-knee-hip interlimb coordinated gait kinematics and kinetics in patients with hemiparetic stroke. Although patients with hemiparetic ...
Single-Blind Method Equipment Design Knee Joint Stroke Recovery of Function Robotics Functional Status Exoskeleton Device Physical Therapy Modalities Stroke Rehabilitation Gait Disorders, Neurologic Gait Range of Motion, Articular Hip Joint Ankle Joint Aged Aged, 80 and over Biomechanical Phenomena Male Middle Aged Time Factors Treatment Outcome Humans Female
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Estimation of Lower Limb Kinematics during Squat Task in Different Loading Using sEMG Activity and Deep Recurrent Neural Networks.

Sensors (Basel, Switzerland) Nov 23, 2021
The aim of the present study was to predict the kinematics of the knee and the ankle joints during a squat training task of different intensities. Lower limb surface electromyographic (sEMG) signals and the 3-D kinematics of lower extremity joints we...
Electromyography Neural Networks, Computer Ankle Joint Biomechanical Phenomena Lower Extremity
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Individuals differ in muscle activation patterns during early adaptation to a powered ankle exoskeleton.

Applied ergonomics Sep 30, 2021
Exoskeletons have the potential to assist users and augment physical ability. To achieve these goals across users, individual variation in muscle activation patterns when using an exoskeleton need to be evaluated. This study examined individual muscl...
Gait Ankle Joint Ankle Exoskeleton Device Muscle, Skeletal Robotics Electromyography Walking Humans Biomechanical Phenomena
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How adaptation, training, and customization contribute to benefits from exoskeleton assistance.

Science robotics Sep 29, 2021
Exoskeletons can enhance human mobility, but we still know little about why they are effective. For example, we do not know the relative importance of training, how much is required, or what type is most effective; how people adapt with the device; o...
Muscle, Skeletal Robotics Equipment Design Electromyography Adult Biomechanical Phenomena Male Ankle Joint Ankle Exoskeleton Device Adaptation, Physiological Walking Gait Torque Humans Female Young Adult
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Efficient bipedal locomotion on rough terrain via compliant ankle actuation with energy regulation.

Bioinspiration & biomimetics Aug 12, 2021
Legged locomotion enables robotic platforms to traverse on rough terrain, which is quite challenging for other locomotion types, such as in wheeled and tracked systems. However, this benefit-moving robustly on rough terrain-comes with an inherent dra...
Ankle Biomechanical Phenomena Robotics Walking Locomotion Ankle Joint
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Evaluation of the Intact Anterior Talofibular and Calcaneofibular Ligaments, Injuries, and Repairs With and Without Augmentation: A Biomechanical Robotic Study.

The American journal of sports medicine Jun 10, 2021
BACKGROUND: Acute ankle sprains are common injuries. The anterior talofibular (ATFL) and calcaneofibular ligaments (CFL) are the most injured lateral structures. However, controversy exists on the optimal surgical treatment when the injury is both ac...
Joint Instability Lateral Ligament, Ankle Humans Robotics Biomechanical Phenomena Robotic Surgical Procedures Cadaver Ankle Joint
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Selection of Muscle-Activity-Based Cost Function in Human-in-the-Loop Optimization of Multi-Gait Ankle Exoskeleton Assistance.

IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society May 28, 2021
Using "human-in-the-loop" (HIL) optimization can obtain suitable exoskeleton assistance patterns to improve walking economy. However, there are differences in these patterns under different gait conditions, and currently most HIL optimizations use me...
Gait Ankle Joint Muscle, Skeletal Humans Exoskeleton Device Ankle Robotics Algorithms Electromyography Biomechanical Phenomena Walking
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Torque Curve Optimization of Ankle Push-Off in Walking Bipedal Robots Using Genetic Algorithm.

Sensors (Basel, Switzerland) May 14, 2021
Ankle push-off occurs when muscle-tendon units about the ankle joint generate a burst of positive power at the end of stance phase in human walking. Ankle push-off mainly contributes to both leg swing and center of mass (CoM) acceleration. Humans use...
Humans Biomechanical Phenomena Robotics Walking Gait Torque Ankle Joint Ankle
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Estimation of the Continuous Walking Angle of Knee and Ankle (Talocrural Joint, Subtalar Joint) of a Lower-Limb Exoskeleton Robot Using a Neural Network.

Sensors (Basel, Switzerland) Apr 16, 2021
A lower-limb exoskeleton robot identifies the wearer's walking intention and assists the walking movement through mechanical force; thus, it is important to be able to identify the wearer's movement in real-time. Measurement of the angle of the knee ...
Ankle Joint Ankle Neural Networks, Computer Exoskeleton Device Biomechanical Phenomena Subtalar Joint Knee Joint Lower Extremity Humans Walking Robotics Gait
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State of the art in parallel ankle rehabilitation robot: a systematic review.

Journal of neuroengineering and rehabilitation Mar 20, 2021
BACKGROUND: The ankle joint complex (AJC) is of fundamental importance for balance, support, and propulsion. However, it is particularly susceptible to musculoskeletal and neurological injuries, especially neurological injuries such as drop foot foll...
Rotation Ankle Joint Humans Ankle Injuries Physical Therapy Modalities Technology Robotics Peroneal Neuropathies Ankle Biomechanical Phenomena Equipment Design Stroke
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