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Psychometric properties of lift and carry test in assessing people with stroke
Peiming Chen1,2, Mimi M Y Tse3, Shamay S M Ng1,2
1Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China.
Objective:
To investigate the psychometric properties of the Lift and Carry Test (LCT) time in people with stroke.
Design:
Cross-sectional design.
Setting:
University based neurorehabilitation laboratory.
Participants:
Twenty-four people with stroke and 24 healthy controls.
Outcome Measures:
Lift and Carry Test (LCT), Fugl-Meyer Assessment of upper extremity and lower extremity, ankle dorsiflexor and plantarflexor muscle strength, Berg Balance Scale (BBS), Timed Up and Go (TUG) and Community Integration Measure.
Results:
The mean LCT time (29.70s) in people with stroke was more than double of that in healthy controls (13.70s). The LCT showed excellent intra-rater, inter-rater and test-retest reliability [intraclass correlation coefficient (ICC) = 0.943-1.000]. The LCT times demonstrated a significant negative correlation with the BBS score (rs = -0.771) and significant positive correlations with the TUG times (rs = 0.933). There was no significant correlation between LCT times and FMA score (p > 0.05). An optimal cut-off LCT time of 15.48 s (sensitivity = 95.8%, specificity = 87.5%) was identified to differentiate between people with stroke and healthy controls (area under the curve = 0.957).
Conclusion:
LCT is an excellent clinical test for examining advanced functional ability in people with stroke and distinguishing people with stroke from healthy controls.
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