The change score of an individual patient has to reach 4.36 and 0.37 on the WMFT time and WMFT FAS to indicate a real change. The mean change scores of a stroke group on the WMFT time and WMFT FAS should achieve 1.5 to 2 seconds and 0.2 to 0.4 points to be regarded as clinically important changes. Furthermore, the WMFT FAS may be more responsive than the WMFT time based on the results of proportions exceeding the threshold criteria.

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The HRQOL of patients with low back pain depended on functional status and psychological factors more than simple physical impairment. Future intervention may need to put more emphasis on improving functional status and psychological stress for these patients.

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