. Author manuscript; available in PMC: 2011 Jul 1.

Published in final edited form as: Med Sci Sports Exerc. 2010 Jul;42(7):1286–1295. doi: 10.1249/MSS.0b013e3181ca8115

Table 4.

Results from linear regression of 6-year change in body weight and total and trunk fat, and lean soft tissue (LST) regressed on measures of exercise^* (n=122).

	Model 1			Model 2			Model 3			Model 4			Model 5			Model 6
Outcome Variables	Change in Weight			Change in Total Body Fat			Change in Trunk Fat			Change in Arm Fat			Change in Leg Fat			Change in Total Body Lean Soft Tissue
Independent Variables	SBC	P-value	Adj. R²	SBC	P-value	Adj. R²	SBC	P-value	Adj. R²	SBC	P-value	Adj. R²	SBC	P-value	Adj. R²	SBC	P-value	Adj. R²
Model A			0.26			0.19			0.23			0.17			0.23			0.04
Mean 6year Exercise Frequency	−0.27	0.001		−0.31	<0.001		−0.28	0.001		−0.31	0.001		−0.25	0.007		0.15	0.13
Change in Lean Soft Tissue^**	0.30	0.001		0.08	0.35		0.08	0.39		0.07	0.48		−0.02	0.87
Change in Fat Tissue^**																0.10	0.36
Model B			0.24			0.15			0.18			0.12			0.21			0.07
Weight Lifted in Military Press	−0.22	0.01		−0.25	0.006		−0.20	0.03		−0.24	0.02		−0.20	0.03		0.21	0.03
Change in Lean Soft Tissue^**	0.31	0.001		0.09	0.31		0.07	0.45		0.06	0.55		−0.02	0.84
Change in Fat Tissue^**																0.10	0.33
Model C			0.27			0.20			0.24			0.17			0.24			0.06
Weight Lifted in Squats	−0.28	0.001		−0.33	<0.001		−0.31	0.001		−0.32	0.001		−0.28	0.003		0.20	0.04
Change in Lean Soft Tissue^**	0.31	<0.001		0.10	0.25		0.10	0.26		0.09	0.39		0.00	0.98
Change in Fat Tissue^**																0.12	0.26

Additionally adjusted for age, baseline and 6-year change in body composition (see **), years taking hormones over the 6-year period, baseline exercise energy expenditure and whether or not it was representative of more, less, or usual activity (self report);

^**

baseline weight used in all models; covariates for lean soft tissue used in Models 1–3 and fat tissue in Model 4. Annual exercise frequency = sessions performed/sessions prescribed for that year. These annual exercise frequencies were then averaged over the 6 years. Weight lifted in military press and squats represents annual kilograms multiplied by repetitions and by sets and then summed for 6 years.

SBC=Standardized Beta-Coefficient