The L-test is a modification of the timed up and go test, which assesses mobility, and dynamic balance if it is performed with fast walking. The walking path is 20 m and includes two transfers and four changes of direction. The purpose of the literature review was to summarize its measurement properties. Methods: A literature review was conducted in PubMed and Cochrane Library. Results: The review included 16 studies of the measurement properties of the L-test in different populations. In eight studies excellent intra-rater reliability and in six studies excellent inter-rater reliability was reported. Correlations of the L-test with timed walk and mobility tests were very good to excellent. Correlations with the scales for assessment of balance, walking independence and mobility were fair to very good, fair with balance confidence scale and little to moderate with the self-reporting scales of activities. Conclusion: Due to the more demanding task and specificity for unilateral physical disability and good measurement properties in different patients’ populations, the L-test could replace the timed up and go test. The L-test instructions are presented in the appendix.
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