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The tibia is the main weight-bearing bone of the lower leg. It is larger than the fibula with which it is paired. The tibia is also the second longest bone in the body and is located right below the skin. The proximal end of the tibia forms the medial and the lateral condyle, which articulates with the condyles of the femur to form the knee joint. Between the articulating surfaces is the irregular elevated area known as the intercondylar eminence that serves as the inferior attachment point for...
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Energy diagrams are important to understand the dynamics of a system. The topology of an energy diagram helps illustrate the equilibrium points of the system.
The point in the energy diagram at which the system’s potential energy is the lowest is known as the local minima. The system tends to stay in this position indefinitely unless acted upon by a net force. The slope of the potential energy diagram at the local minima is zero, indicating that zero net force is acting on the system. The...
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In mechanical engineering, the stability of systems under various forces is critical for designing durable and efficient structures. One fundamental way to explore these concepts is by analyzing systems like two rods connected at a pivot point, O, with a torsional spring of spring constant k at the pivot point. This system is similar in appearance to a scissor jack used to change tires on a car. In this case, the arms of the linkage (equivalent to the rods in this system) are entirely vertical,...
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Energy Diagrams - I01:14

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The dynamics of a mechanical system can be easily understood by interpreting a potential energy diagram. Since energy is a scalar quantity, the interpretation of the dynamics of the system becomes even simpler.
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Ankle Joint01:10

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The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...
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Journal bearings are mechanical components that support and provide lateral stability to rotating shafts and axles. They are crucial in reducing friction, wear, and vibration in machinery such as engines, turbines, and pumps. The principle behind journal bearings is forming a thin lubricant film between the bearing surface and the rotating shaft, which minimizes direct contact and reduces frictional forces.
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Updated: Feb 16, 2026

Subject-specific Musculoskeletal Model for Studying Bone Strain During Dynamic Motion
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Subject-specific Musculoskeletal Model for Studying Bone Strain During Dynamic Motion

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Ski Binding Biomechanics.

Robert J Johnson, Malcolm H Pope

    The Physician and Sportsmedicine
    |December 21, 2017
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    Summary
    This summary is machine-generated.

    Ski bindings are crucial for preventing injuries by releasing skis during falls. Proper binding adjustment, maintenance, and type selection are essential for skier safety.

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    Area of Science:

    • Sports Medicine
    • Biomechanics
    • Orthopedics

    Background:

    • Skiing injuries are a significant concern for participants.
    • The ski binding's primary role is to secure the ski during normal use while releasing under excessive force to prevent injury.
    • Improperly functioning bindings are a common cause of skiing-related injuries.

    Purpose of the Study:

    • To highlight the critical role of ski bindings in injury prevention.
    • To identify common causes of binding-related injuries.
    • To provide recommendations for appropriate binding use based on skier level.

    Main Methods:

    • Review of biomechanical principles governing ski binding function.
    • Analysis of factors contributing to binding-related skiing injuries.
    • Classification of binding types and their suitability for different skier levels.

    Main Results:

    • Ski binding function is paramount in preventing or causing skiing injuries.
    • Improper binding design, installation, adjustment, and maintenance are frequent causes of injury.
    • Advanced skiers may benefit from two-mode release bindings, while beginners should use multimode bindings.

    Conclusions:

    • Skiers must ensure their bindings are up-to-date, functionally tested, and release correctly in all directions without pain.
    • Regular maintenance and proper adjustment by qualified professionals are vital for ski binding safety.
    • Selecting the appropriate binding type for a skier's experience level is key to minimizing injury risk.