Elbow Flexor Spasticity
Elbow Flexor Spasticity - Related Videos
10:09
Elbow Exam
0 Views •
2023
Source: Robert E. Sallis, MD. Kaiser Permanente, Fontana, California, USA The elbow is a hinged joint that involves the articulation of 3 bones: the humerus, radius, and ulna. It is a much more stable joint than the shoulder, and because of that, the elbow has less range of motion. The elbow and its structures are prone to significant injuries, particularly with repetitive motion. Lateral and medial epicondylitis (also called tennis elbow and golfer's elbow) are two common diagnoses and often...
11:34
Breathing-controlled Electrical Stimulation (BreEStim) for Management of Neuropathic Pain and Spasticity
0 Views •
Cited by 9 •
2013
The purpose is to present a new method, breathing-control electrical stimulation (BreEStim) for management of neuropathic pain and spasticity.
07:32
Murine Flexor Tendon Injury and Repair Surgery
0 Views •
Cited by 45 •
2016
Flexor tendons in the hand are commonly injured, leading to impaired hand function. However, the scar-tissue healing response is not well characterized. A murine model of flexor tendon healing is demonstrated here. This model can enhance overall understanding of the healing process and assess therapeutic approaches to improve healing.
07:56
A Standardized Method for Measurement of Elbow Kinesthesia
0 Views •
Cited by 3 •
2020
Here, we present a standardized method for measurement of elbow passive kinesthesia using the threshold to detection of passive movement (TDPM) that is appropriate for a research setting.
10:32
Using Q Suture to Enhance Resistance to Gap Formation and Tensile Strength of Repaired Flexor Tendons
0 Views •
Cited by 1 •
2020
Here, we present a “Q” suture technique that can be performed in tendon repair and its effects on the gap formation and tensile strength of the repaired tendons. Q suture is shown to be efficient in enhancing the tensile resistance and tendon repair strength.
FAQs
The velocity dependence matters because a faster elbow stretch can produce a larger increase in flexor resistance than a slower stretch. This response reflects an exaggerated stretch reflex, whereas resistance that persists independently of movement speed may indicate contributions from muscle or connective-tissue properties. Separating these effects helps characterize the source of limited extension.
Damage to the central nervous system can alter control of elbow flexor activity, allowing rapid stretch to provoke an excessive reflex response. The resulting activation can interfere with voluntary movement and stable joint positioning. For bioengineers, this neural component is important because device assistance or neuromodulation must be evaluated against both reflex behavior and intended movement.
Elbow flexor spasticity cannot be characterized reliably from joint motion alone. Motion analysis describes the trajectory, force measurement captures resistance, and electromyography records muscle activity associated with neural responses. Computational models can integrate these signals to estimate how much of the observed limitation reflects active neural behavior versus passive stiffness, improving interpretation of experimental measurements.
A bioengineering assessment may combine elbow motion analysis with measurements of resistance and muscle activity. Comparing responses across movement conditions provides evidence about velocity-dependent behavior, while model-based analysis helps distinguish reflex-related activity from tissue-related restriction. This workflow generates quantitative measures that can be used to compare participants, sessions, or interventions.
Rehabilitation robots and orthoses apply measurements in different ways: robots can guide or assist arm movement during therapy, while orthoses can support joint positioning. Wearable sensors offer a route for monitoring movement or muscle-related signals during assessment. Their design depends on identifying whether impairment is driven mainly by neural activity, passive restriction, or both.
Measurements of elbow flexor spasticity can support evaluation of neuromodulation strategies as well as rehabilitation technologies. Useful outcomes include changes in resistance, muscle activity, movement, or joint positioning, depending on the instrumentation and model. Tracking these variables across therapy can help determine whether an intervention improves arm mobility and whether functional recovery is progressing.