A 2 X 2 MANOVA is done with participants randomly assigned to either sailboating or rock climbing as regular exercise and either a high fiber or low fiber diet. Outcome measures were blood pressure, weight change, and depressive symptoms as measures of health. You found this result for the interaction effect, Wilks' Lambda = .34, F(3, 155) = 135.66, p < .001, but the main effects for both IVs on the combined DV were not significant. What should your next step be?