Predicting levels of basic functional mobility, as assessed by the Timed "Up and Go" test, for individuals with stroke: discriminant analyses.
OBJECTIVE
To compare stroke subjects with different levels of functional mobility, as determined by the Timed "Up and Go" (TUG) test, with controls and outline which clinical functional measures could be combined to predict functional mobility.


METHODS
Twenty-two chronic stroke (54.7 ± 15.4 years) and 22 healthy subjects (54.7 ± 15.4 years) performed the TUG and were assessed regarding the paretic or non-dominant quadriceps strength, maximal gait speed, and quality of life (QL). Each group was divided into fast, intermediate, and slow sub-groups regarding their TUG performances. ANOVAs were employed to investigate the main and interaction effects between the groups and sub-groups and discriminant analyses to predict group membership.


RESULTS
For both groups, the three sub-groups were significantly different regarding their TUG scores (26.21 < F < 32.73; p < 0.006). The significant interactions indicated that faster stroke subjects demonstrated similar TUG scores, compared to those of all the healthy sub-groups. Maximal gait speed and QL showed significant discriminant functions and correctly classified 86.4% of the original grouped cases.


CONCLUSIONS
Fast stroke subjects demonstrated similar TUG performances compared to those of healthy subjects. Group membership was correctly classified for the majority of subjects, except for the fast stroke sub-group, but only for the variables related to gait speed and QL.
Department of Physical Therapy, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil. cdcmf@ufmg.br
Christina D C M
CD
Faria
Luci F
LF
Teixeira-Salmela
Sylvie
S
Nadeau
D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D016022:Case-Control Studies; D004185:Disability Evaluation; D016002:Discriminant Analysis; D005080:Exercise Test / Q000379:methods*; D005260:Female; D005684:Gait / Q000502:physiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009068:Movement; D017063:Outcome Assessment, Health Care; D010291:Paresis / Q000209:etiology / Q000503:physiopathology* / Q000534:rehabilitation; D004856:Postural Balance / Q000502:physiology; D011237:Predictive Value of Tests; D011788:Quality of Life; D011930:Reaction Time; D020127:Recovery of Function; D020521:Stroke / Q000150:complications / Q000503:physiopathology*; D000071939:Stroke Rehabilitation; D013647:Task Performance and Analysis