Facts about Adductor longus

1. 11

   Hip flexion strength testing reveals the adductor longus contributes significantly to hip stabilization during activities like climbing stairs, as its anterior position allows it to assist in controlling femoral internal rotation.

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2. 10

   Surgical approaches to groin repair often require precise identification of the adductor longus because its prominent tendon serves as a key anatomical landmark at the pubic symphysis.

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3. 09

   Electromyographic studies show the adductor longus reaches peak activation at approximately 45 degrees of hip abduction, making it crucial for controlling leg position during lateral movements.

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4. 08

   Muscle fiber pennation in the adductor longus ranges from 5 to 15 degrees, enabling improved force production compared to non-pennate muscles while maintaining relatively compact anatomy.

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5. 07

   Anatomical studies show the adductor longus measures approximately 9 to 10 centimeters in length when fully stretched, making it the shortest of the three primary adductors.

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6. 06

   Palpation of the adductor longus at the pubic tubercle allows clinicians to distinguish it from surrounding adductor muscles during physical examination of the groin.

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7. 05

   Adductor longus muscle fibers run at approximately 60 degrees to the direction of hip adduction force, creating a mechanical advantage that allows efficient force transmission during medial leg movement.

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8. 04

   In groin strain injuries among athletes, the adductor longus accounts for approximately 60 percent of all adductor muscle tears due to its superficial location and vulnerability to sudden eccentric loading.

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9. 03

   Innervation of the adductor longus comes from the obturator nerve's anterior division, specifically the medial branch that supplies this muscle alongside the adductor brevis and gracilis.

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10. 02

    During hip adduction exercises, the adductor longus produces approximately 40 percent more force than the adductor brevis due to its longer moment arm.

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11. 01

    The adductor longus originates from the pubic bone and comprises approximately 10 to 15 percent of the adductor muscle group's total mass.

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