BACKGROUND: Commonly used @entity508 scales assess the resistance felt by the evaluator during passive stretching. These scales, however, have questionable validity and reliability. The tonic stretch reflex threshold (TSRT), or the angle at which motoneuronal recruitment begins in the resting state, is a promising alternative for @entity508 measurement. Previous studies showed that @entity508 and @entity51 after @entity64 may be characterized by a limitation in the ability of the central nervous system to regulate the range of the TSRT. OBJECTIVE: The study objective was to assess interevaluator reliability for @entity508 measurement. DESIGN: This was an interevaluator reliability study. METHODS: In 28 @entity1 after @entity64 , plantar-flexor @entity508 was evaluated twice on the same day. Plantar-flexor muscles were stretched 20 times at different velocities assigned by a portable device. Plantar-flexor electromyographic signals and ankle angles were used to determine dynamic velocity-dependent thresholds. The TSRT was computed by extrapolating a regression line through dynamic velocity-dependent thresholds to the @entity16028 . RESULTS: Mean TSRTs in evaluations 1 and 2 were 66.0 degrees (SD=13.1  ) and 65.8 degrees (SD=14.1  ), respectively, with no significant difference between them. The intraclass correlation coefficient (2,1) was .851 (95% confidence interval=.703, .928). LIMITATIONS: The notion of dynamic stretch reflex threshold does not exclude the possibility that @entity508 is dependent on acceleration, as well as on velocity; future work will study both possibilities. CONCLUSIONS: Tonic stretch reflex threshold interevaluator reliability for evaluating @entity64 -related plantar-flexor @entity508 was very good. The TSRT is a reliable measure of @entity508 . More information may be gained by combining the TSRT measurement with a measure of velocity-dependent resistance.

Tonic Stretch Reflex Threshold as a Measure of Ankle Plantar-Flexor Spasticity After XXXX .

@entity1 :: ('9606', 'Species') :: ['people'] @entity64 :: ('MESH:D020521', 'Disease') :: ['stroke'] @entity508 :: ('MESH:D009128', 'Disease') :: ['spasticity', 'TSRT plantar-flexor spasticity'] @entity51 :: ('MESH:D009461', 'Disease') :: ['voluntary motor deficits'] @entity16028 :: ('MESH:D065170', 'Disease') :: ['angular axis']
@entity64 :: (MESH:D020521,Disease) :: ['Stroke']
