Intra-session test-retest reliability of the Timed "Up & Go" Test when performed by patients with hip fractures
Sammanfattning
The aim of this study was to assess the reliability of the Timed "Up &Go" Test (TUG) when performed three times in
one session by elderly hip fracture patients. Ninety-two patients in the orthogeriatric unit aged 65 years old were asked
to perform the TUG three times at hospital discharge. Relative and absolute reliability was examined using intra-class
correlation coeffi cients (ICCs) and standard error of measurement (SEM), respectively. The smallest detectable change on
an individual level (SDC ind) was calculated. Thirty-seven patients completed three trials and were included in the reliability
analysis. For each trial, mean performance time became shorter. For TUG trial 2 - 3 both ICC 1.1 and 3.1 were 0.96 [95%
confi dence interval (CI) ICC 1.1: 0.78 - 0.94 and ICC 3.1: 0.92 - 0.98], indicating no learning effect between these trials.
For TUG trial 1 - 2, ICC 3.1 (0.90, 95% CI: 0.82 - 0.95) was larger than ICC 1.1 (0.88, 95% CI: 0.78 - 0.94), indicating a
learning effect. The 1.96 *SEM was 10.22 seconds from TUG trial 1 - 2 and 5.32 seconds from trial 2 - 3. SDC ind was
14.5 seconds and 7.5 seconds for TUG trials 1 - 2 and 2 - 3, respectively. In conclusion, in this small study, TUG scores had
high intra-session test - retest reliability when three trials were conducted. Only 40.2% of the patients managed to complete
all trials. Performing the test twice may be suffi cient to provide a reliable TUG measurement in our patient group.