supination

/,sju:pi'neiʃn/

Thân thiện

A physical therapist demonstrates supination to a patient.

Definition

1. Noun:
   • The act of rotating the forearm and hand so that the palm faces upward or forward. This is the opposite motion of pronation. In anatomical position, supination refers to the position where the palms face anteriorly (forward).

Usage

• General Use: Describes a specific movement of the arm or a position of the hand.
• Medical/Anatomical Context: A precise term used to describe limb position or movement, often in physical therapy, orthopedics, or anatomy.

Examples

• Noun:
  • The physical therapist instructed the patient to practice supination to improve wrist mobility.
  • In a proper bicep curl, supination of the forearm occurs as you lift the weight.
  • The anatomy test required us to identify the muscles responsible for supination.

Advanced Usage

• "Full supination": complete rotation to the palm-up position.
  • The joint allows for full supination and pronation.
• "Forced supination": supination caused by an external force, often discussed in injury contexts.
  • The fall resulted in a fracture due to forced supination of the foot. (Note: While primarily for the arm, the term can be applied to foot rotation in specialized contexts.)

Variants and Related Words

• Supinate (verb): To perform the act of turning the palm upward.
  • You must supinate your hand to receive the coins.
• Supinator (noun): A muscle that effects supination of the forearm.
  • The supinator muscle is located in the forearm.

Synonyms

• Palm-up rotation: A descriptive synonym.
• External rotation (of the forearm): A related anatomical term, though not perfectly identical in all contexts.

Antonyms

• Pronation: The rotation of the forearm so that the palm faces downward or backward.

Học thuật

Noun

1. rotation of the hands and forearms so that the palms face upward