Wrist Flexion
Wrist Flexion - Related Videos
12:21
Wrist and Hand Examination
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2015
Source: Robert E. Sallis, MD. Kaiser Permanente, Fontana, California, USA The wrist is a complex joint made up of 8 carpal bones and their numerous articulations and ligaments. Overlying the wrist are the tendons and muscles of the hand and fingers. The hand is made up of 5 metacarpal bones, and the tendons that run to the hand overlie these bones. Finally, the fingers consist of 14 phalanges with their articulations held together by collateral ligaments and volar plates. Common mechanisms of...
07:19
Simulating Fall-Induced Wrist Fractures Using a Cadaveric Human Forearm Specimen
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2026
Source:Anthony J. Yosick1,2, Christine Massie1, Emma Knapp2, Hani A. Awad1,2,31Department of Biomedical Engineering, University of Rochester, US2Center for Musculoskeletal Research, Department of Orthopedics, University of Rochester Medical Center, USA3Department of Orthopedics, University of Rochester Medical Center, USAThe video demonstrates fall-related wrist fractures using human cadaver forearms with varying bone densities. Specimens are standardized by removing upper soft tissue,...
12:51
Evaluation of Commercial-Off-The-Shelf Wrist Wearables to Estimate Stress on Students
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Cited by 23 •
2018
A protocol to evaluate solutions based on commercial-off-the-shelf (COTS) wrist wearables to estimate stress in students is proposed. The protocol is carried out in two phases, an initial laboratory-based stress induction test, and a monitoring stage taking place in the classroom while the student is performing academic activities.
04:59
Using a Knee Arthrometer to Evaluate Tissue-specific Contributions to Knee Flexion Contracture in the Rat
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Cited by 4 •
2018
The goal of the protocol is to measure the extension range of motion of the rat knee. The effects of various diseases that increase the stiffness of the knee joint and the effectiveness of treatments can be quantified.
07:33
In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty
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Cited by 2 •
2023
This protocol presents a cadaveric study of a wireless sensor used in medial unicompartmental knee arthroplasty. The protocol includes the installation of an angle measuring device, standardized Oxford unicompartmental knee arthroplasty osteotomy, preliminary assessment of flexion-extension balance, and application of the sensor to measure flexion-extension gap pressure.
FAQs
Wrist flexion depends on more than contraction by the primary flexor muscles. Tendons transmit their pulling force across the front of the wrist, while opposing muscles contribute stabilizing activity. This coordination helps control the joint rather than allowing an uncontrolled movement, making it relevant to precise actions such as grasping, manipulating tools, typing, and gesturing.
The timing and coordination of muscle activity influence how effectively a person adapts wrist movement to a task. A movement may require controlled force, stable positioning, or rapid adjustment, so researchers examine coordination alongside the motion itself. These measures can help connect observable behavior with motor control during everyday actions and learned movements.
Task demands can alter the amount of force, timing, and coordination required from the wrist. Grasping an object, manipulating a tool, typing, and making a gesture do not place identical behavioral demands on movement. Comparing performance across such activities allows researchers to examine how people organize wrist control and adapt movement to different goals.
Measurements of range, force, timing, and coordination provide different views of wrist motor performance. Range indicates how far the movement can be produced, force reflects the strength of the action, and timing captures when it occurs. Examining these outcomes together can reveal changes associated with motor learning, injury, or altered neurological function.
A behavioral study can assess the movement's range, force, timing, or coordination, depending on the research question. These measures describe complementary features rather than a single outcome: range concerns movement extent, force concerns action strength, timing concerns temporal organization, and coordination concerns how muscles and joint control work together. The selected measures should match the task being examined.
Wrist flexion is useful when a study examines actions requiring hand positioning or controlled manipulation. Researchers can investigate it during grasping, tool use, typing, or gesturing, then relate measured performance to task demands. The same movement also offers a way to study adaptation, because changes in range, force, timing, or coordination can accompany learning, injury, or neurological changes.