Upper extremity function in persons with tetraplegia: relationships between strength, capacity, and the spinal cord independence measure.
OBJECTIVE
To quantify the relationship between the Spinal Cord Independence Measure III (SCIM III), arm and hand muscle strength, and hand function tests in persons with tetraplegia.


METHODS
A total of 29 individuals with tetraplegia (motor level between cervical 4 and thoracic 1; sensory-motor complete and incomplete) participated. The total score, category scores, and separate items of the SCIM III were compared to the upper extremity motor score (UEMS), an extended manual muscle test (MMT) for 11 upper extremity muscles, and 6 functional capacity tests of the hand. Spearman's correlation coefficients (r(s)) and regression analyses were performed.


RESULTS
The SCIM III sum score correlated well with the sum scores of the 3 tests (r(s) > or = .76). The SCIM III self-care category correlated better with the tests ( r(s) > or = .80) compared to the other categories (r( s) < or = .72). The SCIM III self-care item "grooming" highly correlated with muscle strength and hand capacity items (r(s) > or = .80). A combination of hand muscle tests and the key grasping task explained over 90% of the variability in the self-care category scores.


CONCLUSIONS
The SCIM III self-care category reflects upper extremity performance as it contains especially useful and valid items that relate to upper extremity function and capacity tests.
Rudhe
Claudia
C
Spinal Cord Injury Center, Balgrist University Hospital, Zurich, Switzerland.
van Hedel
Hubertus J A
HJ
D000203:Activities of Daily Living; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001132:Arm / Q000294:innervation / Q000503:physiopathology*; D004185:Disability Evaluation; D017079:Exercise Tolerance / Q000502:physiology; D005260:Female; D006225:Hand / Q000294:innervation / Q000503:physiopathology; D018737:Hand Strength / Q000502:physiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D053580:Muscle Strength / Q000502:physiology*; D018908:Muscle Weakness / Q000175:diagnosis* / Q000209:etiology / Q000534:rehabilitation*; D018482:Muscle, Skeletal / Q000294:innervation / Q000503:physiopathology; D011237:Predictive Value of Tests; D011782:Quadriplegia / Q000503:physiopathology* / Q000534:rehabilitation; D013116:Spinal Cord / Q000503:physiopathology*; D013119:Spinal Cord Injuries / Q000150:complications / Q000503:physiopathology / Q000534:rehabilitation; D055815:Young Adult