Finger Joint
Finger Joint - Related Videos
19:44
A Tactile Automated Passive-Finger Stimulator (TAPS)
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Cited by 24 •
2009
We describe a computer-controlled device for investigating the sense of touch: the Tactile Automated Passive-finger Stimulator (TAPS). We describe the components of TAPS, and show how TAPS is used to administer a two-interval forced-choice tactile grating orientation test.
04:50
Preliminary Study on Acupuncture Combined with Grain-sized Moxibustion for Treating Rheumatoid Arthritis with Finger Joint Pain
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2025
Based on the clinical trial, this study provides a standardized operational reference for treating RA with finger joint pain through acupuncture combined with grain-sized moxibustion by stimulating acupoints and warming. It can be used as an effective complementary therapy for RA pain management due to its efficacy and advantages.
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...
01:17
Structural Joints: Cartilaginous Joints
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2025
As the name indicates, at a cartilaginous joint, the adjacent bones are united by cartilage, a tough but flexible type of connective tissue. Unlike synovial joints, these types of joints lack a joint cavity and involve bones joined together by either hyaline cartilage or fibrocartilage. There are two types of cartilaginous joints: Synchondrosis A synchondrosis ("joined by cartilage") is a cartilaginous joint where bones are connected by hyaline cartilage. Synchondrosis may be temporary or...
01:16
Structural Joints: Synovial Joints
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2025
Synovial joints are the most common type of joint in the body. A key structural characteristic for a synovial joint is the presence of a joint cavity. This fluid-filled space is where the articulating surfaces of the bones contact each other. Also, unlike fibrous or cartilaginous joints, the articulating bone surfaces at a synovial joint are not directly connected to each other with fibrous connective tissue or cartilage. This gives the bones of a synovial joint the ability to move smoothly...
FAQs
Muscle and tendon forces produce rotational torque around the joint, and the resulting motion depends on how that force acts relative to the joint. This relationship explains why changes in leverage can alter movement even when applied force remains similar. In biomechanics, torque helps researchers analyze controlled bending, gripping, and fine manipulation of the fingers.
Cartilage and synovial fluid support smooth movement by reducing friction where opposing bone surfaces meet, while ligaments constrain motion and contribute to stability. These components serve different mechanical functions: lubrication and surface protection limit resistance, whereas ligament tension helps control unwanted displacement. Examining these roles clarifies how a joint balances mobility with structural support.
Load and range of motion describe different but connected aspects of joint performance. A finger joint must transfer forces while allowing the movement needed for a task, so biomechanical analysis considers both the magnitude of loading and the available motion. This relationship is especially relevant when comparing gripping, typing, and precise manipulation, which impose different mechanical demands.
Researchers can examine finger-joint biomechanics by relating joint motion and force transfer to activities such as gripping, typing, and fine manipulation. These tasks provide contrasting examples of controlled movement and loading within the hand. Comparing them helps identify how torque, leverage, stability, and range of motion contribute to performance under different functional conditions.
Finger-joint biomechanics provides mechanical principles for reproducing useful hand movement in prosthetic hands and robotic grippers. Designers can apply information about torque, force transfer, leverage, stability, and range of motion when developing moving components. The goal is to support controlled grasping and manipulation that reflect the functional demands observed in biological fingers.
Analysis of finger-joint mechanics helps connect tool design and rehabilitation strategies with the forces and motions required by the hand. Ergonomic tools can be evaluated in relation to gripping and manipulation demands, while rehabilitation can address movement and force transfer after hand injuries or in joint disorders. These applications use biomechanics to improve functional support and recovery planning.