Table 3.

Associations between potential influences and weekly exercise and physical activity

Potential Influence	Aerobic Exercise (logs)			Strengthening Exercise (logs)			MVPA (Accelerometers)			LPA (Accelerometers)
	β	t	p	β	t	p	β	t	p	β	t	p
Social support*
Family participation
Baseline	.41	.41	.69	−32	−82	.42	.44	.26	.80	−10	−03	.98
Follow up	.37	.32	.75	.27	.56	.58	.05	.03	.98	−013	−003	.99
Friend participation
Baseline	1.19	.75	.46	−19	−31	.76	.45	.17	.87	4.58	.83	.41
Follow up	1.35	.72	.48	.84	1.10	.28	.73	.22	.83	14.27	2.16	<0.05
Neighborhood characteristics**
Places for walking and cycling	-11.27	−67	.51	-2.9	−42	.68	2.64	.09	.93	-50.23	−.87	.39
Aesthetics	20.52	1.08	.29	−7.10	−.95	.35	57.92	2.02	<0.05	38.30	.64	.53
Traffic hazards	1.15	.08	.94	2.78	.47	.64	14.12	.55	.59	9.11	.18	.86
Crime	11.24	.56	.58	2.84	.36	.72	2.77	.08	.94	1.97	.03	.98

^*Linear regression models adjusted for sex.

^**Linear regression models adjusted for sex and zip code-level median household income.

Abbreviations: LPA: light physical activity; MPA, moderate physical activity.