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Table 3 Test-retest consistency for kinematic variables. The mean difference, 95% confidence intervals of mean difference and 95% limits of agreement in test and retest for total movement time, peak velocity and joint angles (n = 6).

From: Three-dimensional kinematic motion analysis of a daily activity drinking from a glass: a pilot study

Kinematic variables

Mean difference (95%CI)

95% CI of mean difference

95% LOA

Total movement time (s)

0.00

-0.22, 0.23

-0.43, 0.44

Peak velocity in reaching (mm/s)

-17.1

-52.2, 18.0

-84.0, 49.7

Shoulder abduction in drinking (°)

1.5

-2.4, 5.5

-5.98, 9.01

Shoulder flexion in drinking (°)

0.12

-1.4, 1.6

-2.79, 3.02

Elbow extension in grasping (°)

-0.16

-2.7, 2.4

-5.0, 4.7

Elbow flexion in drinking (°)

0.02

-1.7, 1.7

-3.3, 3.3