Joint Movement Analysis
Joint Movement Analysis - Related Videos
01:27
Movement Joints in Buildings
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2024
Movement joints in buildings are essential design elements that accommodate inevitable motions caused by various factors such as temperature changes, moisture content variations, and structural deflections. These motions, if not considered in design and construction, can lead to unsightly or dangerous damage. Movement joints are incorporated in different forms to manage these stresses and allow materials to move without causing distress. The simplest type of movement joints, working joints, are...
08:16
Movement Retraining using Real-time Feedback of Performance
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Cited by 4 •
2013
Retraining abnormal movement patterns following injury or disease is a key component of physical rehabilitation. Recent advances in technology have permitted accurate assessment of movement during a variety of tasks, with near instantaneous quantification of results. This provides new opportunities for modification of faulty movement patterns in real time.
05:25
An Experiment Using Functional Near-Infrared Spectroscopy and Robot-Assisted Multi-Joint Pointing Movements of the Lower Limb
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Cited by 1 •
2024
It is estimated that 1 in 6 individuals worldwide will have a stroke in their lifetime, causing long-term disability, whose rehabilitation mechanisms are still poorly understood. This study proposes a protocol to evaluate brain activation by functional near-infrared spectroscopy (fNIRS) during a lower limb robotic therapy session.
04:25
Harvesting Articular Cartilage From Joints of an Equine Donor: A Surgical Procedure to Isolate Vascular Connective Tissue From Cadaveric Joints of an Equine Donor
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2025
In this video, we demonstrate the extraction of articular cartilage from an equine cadaveric joint. The isolated articular cartilage can be used for further downstream analysis.
01:03
Structural Joints: Fibrous Joints
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2025
Fibrous joints are a type of joint where the bones are connected by fibrous connective tissue. These joints provide stability and minimal to no movement between the articulating bones. There are three types of fibrous joints. Suture All the bones of the skull, except for the mandible, are joined to each other by a fibrous joint called a suture. The fibrous connective tissue found at a suture strongly unites the adjacent skull bones and thus helps to protect the brain and form the face. In...
FAQs
Each measurement captures a different feature of performance. Joint angles describe configuration, range of motion summarizes the extent of available movement, velocity shows how quickly movement changes, and force indicates loading during the action. Examining these variables together provides a more complete account of coordination and mobility than relying on any single measurement alone.
Spatial measurements show where a joint moves, while temporal measurements show when and how rapidly those changes occur. Combining them can distinguish differences in movement path from differences in timing. This distinction matters in neuroscience because altered motor control may appear as an unusual trajectory, changed speed, or disrupted coordination across the same task.
Researchers can compare joint angles, motion range, velocity, and force while a person performs different tasks or under different conditions. Consistent differences across those comparisons may indicate changes in coordination or mobility. The approach therefore supports examination of how motor behavior adapts, rather than treating one movement pattern as representative of all sensorimotor function.
The measurement approach should match the movement features under study. Motion capture and video can document movement patterns, wearable sensors can provide movement measurements during activities, and biomechanical modeling can help characterize the mechanics represented by those measurements. Using these options allows investigators to select data sources suited to the spatial, temporal, or force-related questions of a study.
A study can begin by selecting a movement task and the variables needed to describe it, such as angles, range of motion, velocity, or force. Investigators then collect measurements with motion capture, video, wearable sensors, or modeling, and compare results across tasks or conditions. The resulting patterns can be interpreted in relation to coordination and motor control.
Movement measurements provide behavioral evidence that can be related to neural control. Comparing people, tasks, or conditions may reveal movement changes associated with injury or disease, while repeated assessment can help evaluate rehabilitation strategies. Because the analysis quantifies coordination and mobility, it can support more precise studies of sensorimotor function than descriptive observation alone.