Table 1. ANOVA table for four different multivariate linear regression models.

Independent variable	DF	F value	p value
impact force	1	71.4	2.68E-12
impact duration	1	8.9	3.98E-03
pulling duration	1	4.8	0.03
contact area	1	23.1	8.64E-06
relative mucus coverage	1	2.6	0.11
specimen ID	3	10.0	1.39E-05
consecutive trial number	1	0.5	0.49
residuals	70