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There was also a borderline association with the chair stand test for women who gave birth as adults and had 3 or more children (β 0.379; p 0.089).
They reported that sit to stand tests with the best measurement evidence included the TUG test and the 30-second chair stand test for hip/knee OA.
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In addition, Dobson et al. [ 21] reported that the TUG test displayed best measurement evidence among sit to stand tests for hip/knee OA.
The 30-second sit to stand test has been validated for use with older people and people with chronic disease [ 13, 14].
Sample size needed for a one tailed paired t-test with α 0.05 and n = 14 with power = 0.90 was n =16 for the 5 chair stands test n < 10 for the timed up and go test.
Safety measures were then instituted immediately in the pilot study and these safety measures (using arm rests during the sit-to-stand test for weakened patients, patient information regarding wearing appropriate walking shoes) will continue during the RCT.
Although manual muscle testing (MMT) is most commonly used for the grading of motor strength, we substituted two functional tests of strength in lieu of MMT: the heel-raise test for detection of S1 involvement, and the sit-to-stand test for detection of L3 involvement; the performance characteristics of the latter test have been reported elsewhere.
Women who had their first birth before 18 years old (Table 3) or who had 3 children or more (Table 4) presented worse performance in the chair stand test after adjustment for the covariates.
The test-retest reliability (95% confidence interval) for the chair stand test is 0.89 (0.79-0.93) and for the arm curl test 0.81 (0.72-0.88) [ 2].
The arm curl test and the chair stand test are validated methods for measuring muscle strength in upper and lower extremities.
The inspectors were admitted to the plant almost immediately, but most then left and drove to another compound housing the Al Rafah missile-testing station, where the Iraqis have built steel structures called test stands for testing missile engines.
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