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HEMME APPROACH TO SOFT-TISSUE THERAPY

HEMME APPROACH TO SOFT-TISSUE THERAPY

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If joints and the agonist are normal, the main factor limiting ROM is the<br />

tissue extensibility of the antagonist. If the antagonist fails to lengthen<br />

normally during contraction of the agonist, the joint's range of motion will be<br />

limited. This explains why active range-of-motion testing measures the<br />

strength of the agonist, the length of the antagonist, and the amount of motion<br />

available to a specific joint. The three main ways to increase the active ROM<br />

are strengthen the agonist, lengthen the antagonist, and loosen the joint.<br />

The following table defines active, passive, active-assisted, and resisted<br />

range-of-motion testing.<br />

Active range-of-motion testing: the force for the movement is provided by<br />

the patient without assistance or resistance from the examiner.<br />

Passive range-of-motion testing: the force for the movement is provided by<br />

the examiner without assistance or resistance from the patient.<br />

Active-assisted range-of-motion testing: the force for the movement is<br />

provided by the patient with some assistance from the examiner.<br />

Resisted range-of-motion testing: the force for the movement is provided by<br />

the patient and works against resistance from the examiner.<br />

For the safety of the patient, active, passive, and active-assisted range-ofmotion<br />

testing should always be done first, and resisted range-of-motion<br />

testing last. Active range-of-motion testing gives the examiner a chance to<br />

observe the patient's ROM with gravity as the only outside force. If the active<br />

ROM is normal, the final step is resisted range-of-motion testing.<br />

If the patient fails active range-of-motion testing, the next step is using<br />

passive range-of-motion testing to evaluate the ROM. If the patient's ROM is<br />

incomplete, the probable causes are joint dysfunction, spasm, or contracture. If<br />

the patient's range of motion is normal, active-assisted range-of-motion testing<br />

can be used to identify weakness. Possible causes for weakness are neurologic<br />

dysfunction, lack of motivation, pain, disuse atrophy, or fatigue. If a patient<br />

fails muscle testing at any level, it is normally better to stop and treat the<br />

problem than to continue with muscle testing.<br />

30<br />

<strong>HEMME</strong> Approach to Soft-Tissue Therapy

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