Physical Activity, Physical Performance, and Biological Markers of Health among Sedentary Older Latinos

Table 4

Longitudinal (6 months) unadjusted and adjusted linear regression models of change in biological markers as a function of change in physical activity among participants (𝑛=120).

Physical activity indices‡	CRP; (mg/dL)	Insulin; (uIU/mL)	HDL-cholesterol; (mg/dL)	Glucose; (mg/dL)	Triglycerides; (mg/dL)	Waist; circumference; (cm)
	𝛽-coef	𝛽-coef	𝛽-coef	𝛽-coef	𝛽-coef	𝛽-coef
Total time index; (hours·week^−1)
Unadjusted	−.055	−.𝟎𝟐𝟐^∗	.023	.168	−.062	−.026
Model 1	−.051	−.029	.033	.185	−.164	−.013
Model 2	−.057	−.057	.033	.296	−.103	−.007
Activity index; (total units)
Unadjusted	−.𝟎𝟒𝟓^∗	−.070	−.027	.099	.356	−.𝟏𝟔𝟖^†
Model 1	−.𝟎𝟓𝟐^∗	−.070	−.017	.074	.373	−.𝟏𝟔𝟕^†
Model 2	−.𝟎𝟓𝟏^∗	−.052	−.022	.137	.437	−.𝟏𝟔𝟒^∗
Energy index; (kcal·week^−1 [100])
Unadjusted	−.002	−.005	−.005	.059	.092	−.023
Model 1	−.001	−.009	−.001	.082	.014	−.016
Model 2	−.002	−.021	.002	.145	.044	−.017

^∗𝑃 value < 0.05.
^†𝑃 value < 0.01.
‡Measured with Yale physical activity survey.
CRP = C-reactive protein.
HDL = high density lipoprotein.
Notes. (1) Model 1 controlled for age and gender and (2) model 2 controlled for model 1 covariates, tobacco use, Charlson comorbidity index, and disability.