(Stroke. 1997;28:1382-1385.)
© 1997 American Heart Association, Inc.
Articles |
Trunk Control Test as an Early Predictor of Stroke Rehabilitation Outcome
From the Servizio Fisiatria Occupazionale ed Ergonomia, Centro Medico di Riabilitazione di Veruno (F.P.F., C.R., M.T.M.), the Centro Medico di Riabilitazione di Genova Nervi (F.P.F.), and the Unità Operativa di Ricerca, Valutazione Funzionale e Verifica di Qualità in Riabilitazione, Milano (L.T.), IRCCS, Fondazione Salvatore Maugeri, Clinica del Lavoro e della Riabilitazione, Italy.
Correspondence to Dr F.P. Franchignoni, Centro Medico di Riabilitazione, Via per Revislate 13, 28010 Veruno (NO), Italy.
Background and Purpose The aim of this study was to investigate the construct and predictive validity of the Trunk Control Test (TCT) in postacute stroke patients by comparing TCT scores at admission and discharge with the Functional Independence Measure (FIM) scores.
Methods Forty-nine patients participated in the study. The TCT examines four movements: rolling from a supine position to the weak side (T1) and to the strong side (T2), sitting up from a lying-down position (T3), and sitting balance (T4). The FIM is an 18-item scale (13 motor [motFIM] and 5 cognitive [cognFIM]) used to determine the level of dependence of patients in daily life.
Results Thirty-six patients (73%) increased their TCT overall score at discharge. The TCT item-total correlations were high, both at admission and discharge (P<.0001). The individual TCT items were intercorrelated. Furthermore, the homogeneity of the TCT was confirmed by a high Cronbach's index. High correlations were found between admission and discharge scores in the different tests (TCT, FIM, and motFIM; P<.0001) and between TCT at admission and FIM (P<.0001) and motFIM (P<.0001) at admission. TCT at admission alone explained 71% of the variance in motFIM at discharge.
Conclusions The TCT showed a good sensitivity to change in
assessing recovery of stroke patients. The high item-total correlation
and Cronbach's 
value of the TCT suggest that there is one
homogeneous construct underlying the item list. The TCT
construct validity was confirmed by the correlation between this test
and the FIM scores. TCT at admission predicted motFIM at discharge even
better than motFIM at admission alone. Possibly, the TCT captures basic
motor skills that foreshadow the recovery of more complex behavioral
skills described by the FIM.
Key Words: cerebrovascular disorders • disability evaluation • outcome • rehabilitation
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