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Muscles of the Forearm that Move the Hand and Fingers01:16

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The muscles of the forearm that move the wrist, hand, and digits are numerous and diverse. They can be classified into two groups based on their location and function — the anterior and posterior compartment muscles.
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The radius is longer of the two bones that make up the human antebrachium or forearm. At the proximal end, the radius articulates with the capitulum of the humerus and the radial notch of the ulna to form the elbow joint. At the distal end, the radius articulates with the ulna via the ulnar notch, forming the distal radioulnar joint. Distally, the radius also attaches to the carpal wrist bones (scaphoid and lunate) to form the radiocarpal joint.
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The muscles that move the forearms can be divided into four groups: forearm flexors, forearm extensors, forearm pronators, and forearm supinators. The flexors and extensors act on the elbow joint, while the pronators and supinators act on the radioulnar joints.
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The ulna and radius are parallel bones of the antebrachium or the forearm. The ulna lies medially and consists of a bony tip called the olecranon process at its proximal end. This hook-like projection articulates with the olecranon fossa of the humerus and forms the "hinged" ulnohumeral part of the elbow joint. This joint facilitates forearm extension and flexion while preventing its hyperextension. Similarly, the coronoid process, another bony projection on the proximal/anterior side...
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Treatment for a fracture is based on the type of break, the bone affected, and the patient's age.
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The upper limb consists of the arm, forearm, wrist, and hand bones. The humerus is the single bone of the upper arm region. Proximally, it has a large, spherical, smooth head that articulates with the glenoid cavity of the scapula to form the glenohumeral or shoulder joint. The margin of the head is the anatomical neck, a residual epiphyseal plate. Laterally it extends to form bony projections called the greater tubercle and the lesser tubercle. Next to the tubercles is the surgical neck, a...
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Wrist Pain Associated With 'Fractured' Handle Weights in a Tennis Racket.

M S Pinzur

    The Physician and Sportsmedicine
    |July 13, 2016
    PubMed
    Summary
    This summary is machine-generated.

    Tennis players experienced wrist pain due to fractured racket handle weights. Replacing the faulty tennis rackets with new ones resolved the pain, highlighting equipment as a potential cause of sports injuries.

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    Area of Science:

    • Sports Medicine
    • Orthopedics
    • Biomechanics

    Background:

    • Repetitive stress injuries are common in tennis.
    • Wrist pain can significantly impact athletic performance.

    Purpose of the Study:

    • To investigate the cause of unexplained wrist pain in three tennis players.
    • To identify potential equipment-related factors contributing to tennis injuries.

    Main Methods:

    • Clinical evaluation of three tennis players with wrist pain.
    • Radiographic examination of tennis rackets used by the players.
    • Intervention involving racket replacement.

    Main Results:

    • Physical examinations were unremarkable.
    • X-rays revealed fractures in the handle weights of the tennis rackets.
    • All players experienced symptom relief after receiving new rackets of the same model.

    Conclusions:

    • Fractured racket handle weights can cause or exacerbate wrist pain in tennis players.
    • Equipment integrity is crucial for preventing sports-related injuries.
    • Prompt identification and replacement of faulty equipment can effectively treat associated symptoms.