BioMed Research International / 2019 / Article / Tab 2 / Research Article
Kinematic Validation of Postural Sway Measured by Biodex Biosway (Force Plate) and SWAY Balance (Accelerometer) Technology Table 2 Associations between dependent variables for each test condition.
Biosway SI COM SI/BOS COM velocity/BOS C1 (eyes open, firm surface, double leg) Biosway SI τ b value (N = 40)— 0.818 0.411 — <0.0001 <0.001 C2 (eyes closed, firm surface, double leg) Biosway SI τ b value (N = 40)— 0.751 0.355 — <0.0001 <0.01 C3 (eyes open, foam surface, double leg) Biosway SI τ b value (N = 40)— 0.781 0.382 — <0.0001 <0.001 C4 (eyes closed, foam surface, double leg) Biosway SI τ b value (N = 40)— 0.590 0.433 — <0.0001 <0.0001 C5 (eyes open, foam surface, right single leg) SBMA score τ b value (N = 37)−0.353 −0.086 −0.534 <0.01 0.456 <0.0001 Biosway SI τ b value (N = 38)— 0.209 0.304 — 0.068 <0.01 C6 (eyes open, foam surface, left single leg) SBMA score τ b value (N = 37)−0.441 −0.170 −0.545 <0.001 0.139 <0.0001 Biosway SI τ b value (N = 38)— 0.409 0.575 — <0.001 <0.0001 C7 (eyes closed, firm surface, right single leg) SBMA score τ b value (N = 38)−0.439 −0.319 −0.632 <0.001 <0.01 <0.0001 Biosway SI τ b value (N = 39)— 0.325 0.469 — <0.01 <0.0001 C8 (eyes closed, firm surface, left single leg) SBMA score τ b value (N = 39)−0.305 −0.384 −0.570 <0.01 <0.01 <0.0001 Biosway SI τ b value (N = 40)— 0.302 0.483 — <0.01 <0.0001 C9 (eyes open, firm surface, anterior posterior sway) SBMA score τ b value (N = 39)0.070 0.099 0.131 0.529 0.377 0.241 Biosway SI τ b value (N = 40)— −0.027 0.119 — 0.807 0.278 C10 (eyes open, firm surface, medial lateral sway) SBMA score τ b value (N = 39)0.087 0.138 0.192 0.439 0.217 0.086 Biosway SI τ b value (N = 40)— 0.249 0.341 — <0.05 <0.01
Kendall’s tau-b correlation coefficient (
τ b ) and
value with Hochberg
α adjustments (significant correlations are presented in bold) for correlations between SWAY Balance Mobile Application (SBMA) scores and Biosway Sway Index (SI), SBMA scores and Center of Mass (COM) Balance indices (COM SI/Base of Support (BOS) and COM velocity/BOS), and Biosway SI and COM Balance indices. A larger velocity and SI score represent more postural sway. A larger SBMA score represents less postural sway.
