external rotation


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Related to external rotation: Internal rotation

external rotation

turning outwardly or away from the midline of the body, such as when a leg is externally rotated with the toes turned outward or away from the body's midline.

external rotation

Lateral rotation Biomechanics The act of turning about an axis passing through the center of the leg; ER of the leg occurs with closed chain supination; the talus acts as an extension of the leg in frontal and transverse planes

ex·ter·nal ro·ta·tion

(eks-tĕr'năl rō-tā'shŭn)
Movement of a joint, around its long axis, away from the midline of the body.
Synonym(s): lateral rotation.
Figure 1: The sites of the main nerve centres and descending pathways in the brain and spinal cord that control voluntary movement, represented in diagrammatic sections.

external rotation

a movement at a joint that causes rotation of a limb or part of a limb around its long axis away from the midline of the body, e.g. external rotation at the elbow turns the forearm outwards, bringing the palm of the hand to face forwards, or the whole arm can be externally rotated at the shoulder; the whole leg can be externally rotated from the hip but the knee does not allow external rotation of the lower leg alone. Opposite of internal rotation. Figure 1.
References in periodicals archive ?
A correlation analysis between the PPF and the physical parameters recorded--in order to find out to what extent an increase in the external rotation of the lower extremity correlates with an increase in the PPF--was not carried out, due to the small number of subjects in this pilot study.
Shoulder internal and external rotation peak torque production through a velocity spectrum in differing positions.
15-17) Manual muscle tests revealed: 4-/5 on external rotation (French horn test), 3+/5 on the lift-off test, and 5-/5 on all other tests for right shoulder function.
9), external rotation of more than 90 [degrees] and a shift test of 3+ or more which suggests hyperlaxity.
Two trials were performed in the same manner as the hip external rotation strength.
Limitation in abduction and external rotation caused by weakness in the deltoid muscles and the external rotators of the shoulder are the most frequent secondary deformities.
Inter-rater Method of measurement Study reliability Inclinometer Shoulder External rotation Awan et al (2002) ICC 0.
Key tests for anterior shoulder instability include the apprehension (fulcrum) and relocation tests, for which the patient is examined in the supine position, and the shoulder is placed in 90 degrees abduction and external rotation.
External Rotation (Photo #5 -- Mid-range Position, Left Shoulder) -- The spotter will pin the elbow against the lifter's side and cup his hand over the lifter's fist.
A sling puts the shoulder in internal rotation, but the brace causes external rotation which pulls the ligaments back so that they may hopefully heal back down in the right position.

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