. Author manuscript; available in PMC: 2019 Dec 5.

Published in final edited form as: J Clin Densitom. 2015 Apr 30;19(2):154–164. doi: 10.1016/j.jocd.2015.03.005

Table 4.

Regression Models Relating Damping to Static Postural Balance Outcomes

Test	Dependent variable	Independent variable	Regression coefficient	Standard error	p (1 tailed)	Model R² (adjusted)
FO	SA	Intercept	−0.46	6.47	0.472	0.50
		Age	0.23	0.06	0.001
		BMD_TH	−15.38	4.94	0.002
FO	SL	Intercept	44.54	78.21	0.287	0.10
		Age	1.10	0.78	0.085
		BMD_TH	−82.06	59.71	0.091
FO	Excur-ML	Intercept	4.79	2.59	0.039	0.60
		Age	0.05	0.02	0.013
		ζ_ABOVEKNEE-R	0.00	0.00	0.079
		ζ_UPPERBACK-R	−0.01	0.01	0.041
FO	Excur-AP	BMD_TH	−7.71	1.94	0.000	0.38
		Intercept	2.35	2.64	0.191
		Age	0.07	0.03	0.009
		BMD_TH	−5.57	2.02	0.005
FC	SA	Intercept	−13.87	13.17	0.151	0.44
		Age	0.48	0.13	0.001
		ζ_UPPERBACK-R	−0.07	0.04	0.045
		BMD_TH	−15.38	10.07	0.070
FC	SL	Intercept	−53.66	128.14	0.340	0.08
		Age	2.40	1.76	0.092
		ζ_UPPERBACK-R	−0.77	0.52	0.078
FC	Excur-ML	Intercept	2.05	4.31	0.319	0.39
		Age	0.08	0.04	0.019
		ζ_ABOVEKNEE-R	−0.01	0.00	0.086
		ζ_UPPERBACK-R	−0.02	0.01	0.045
		BMD_TH	−5.33	3.22	0.056
FC	Excur-AP	Intercept	3.93	4.00	0.168	0.29
		Age	0.08	0.04	0.022
		ζ_ABOVEKNEE-L	−0.01	0.01	0.086
		BMD_Troch	−7.37	3.09	0.013

Abbr: ζ_ABOVEKNEE-R, above knee at the lateral femoral condyle; BMD_TH, total hip bone mineral density; BMD_Troch, Trochanter bone mineral density; Excur-AP, excursion in anterior-posterior direction; Excur-ML, excursion in mediolateral direction; FC, eyes open standing on a 4 inch thick foam pad placed on the platform; FO, eyes open standing on a 4 inch thick foam pad placed on the platform; L, left heel strike; R, right heel strike; SA, sway area; SL, sway length; ζ_UPPERBACK-R, upper back (T-7).