RELIABILITY OF A NEW LOWER EXTREMITY MOTOR CONTROL TEST: DOT DIAGRAM
Keywords:kinematics, movement control, alpine skiing, athletic stance
AbstractNine alpine competitors (age = 15.4 ± 0.9 yrs) were suspended by their axillary region and moved their feet in a self-selected pattern to four markers on the ground. Three-D video analysis determined the segment length between the great toes of the right and left foot during a self-selected pattern. Feet were lifted from a center starting point, moved in one of four directions, and then returned to center before starting the next movement. Six trials over two days (3/day) were recorded with reliability (ICC) estimated for the segment lengths between feet. The ICC (p < 0.05) values for the trial duration, maximum, minimum, and average segment lengths were R = .976, .731, .916, and .951, respectively. The test was found to be reliable, although limited subjects were tested. We suggest the test should be pursued to indicate validity of lower extremity motor control to sport performance.