Muscle tone: objective evaluation of the static component at the wrist.
A device measuring the flexion of the hand from an extended position was evaluated as a technique for assessing the passive component of muscle tone. Wrist measurements of 23 individuals, ten able-bodied, eight with spastic and five with flaccid wrists, were collected for three days of each week for three weeks, to determine the interrater, test-retest reliability, and construct validity of the device. Findings demonstrated high interrater reliability, inadequate test-retest reliability for single daily score comparisons, but an acceptable level of test-retest reliability for composite weekly score comparisons. Construct validity was supported since measurements of the involved limbs of individuals with spastic and flaccid wrists and the able-bodied group were significantly different from each other. This technique may provide useful objective information for therapists.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001696:Biomechanical Phenomena; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D009123:Muscle Hypotonia / Q000503:physiopathology*; D009128:Muscle Spasticity / Q000503:physiopathology*; D009129:Muscle Tonus; D014953:Wrist / Q000502:physiology / Q000503:physiopathology*