Table 5.

Linear regression model: trunk inclination classifications as predictive variables associated with ACC in the total sample (n = 40) for the three tasks of felling, delimbing, and bucking.

	Felling					Delimbing					Bucking
Trunk Inclination	B	β	CI95%	p	R2	B	β	CI95%	p	R2	B	β	CI95%	p	R2
0°–30°	0.396	0.253	−0.031–0.824	0.06	0.089	0.622	0.458	0.249–0.995	0.01	0.242	0.436	0.284	0.23–0.85	0.03	0.113
31°–60°	1.276	0.459	0.531–2.02	0.01	0.251	0.760	0.298	−0.046–1.56	0.06	0.092	1.45	0.545	0.59–2.32	0.01	0.244
>60°	0.703	0.315	0.097–1.31	0.02	0.133	0.844	0.141	−1.03–2.71	0.36	0.023	0.115	0.434	−0.765–0.995	0.79	0.002

B = unstandardized regression coefficients; β = standardized regression coefficients; CI95% = confidence interval at 95%.