Balance Performance in Dual Task in Patients With Cervical Disc Herniation Related Chronic Neck Pain:a Comparative Study

"The Neck Disability Index (NDI) was used to assess neck pain related disability. The Biodex Balance System was used to assess postural control.Clinical test of sensory integration of balance (mCTSIB), athletic single leg test (ASLT), limits of stability (LOS), and fall risk assessment were performed with and without a cognitive task.In order to avoid the order bias of postural control measurements during Single-task and Dual-task for each case, the order of the measurements was determined by randomization on the first day by using sealed envelope method. After single/double task randomization was made, the order of tests was also randomized by using sealed envelopes containing two different orders (1-mCTSIB, 2-ASLT, 3-Fall test, 4-LOS and 1- LOS, 2- Fall test, 3- ASLT, 4-mCTSIB)."