Figure 4.

Quadratic regression analysis between average quarterly training impulse (TRIMP) values as a measure of training stimulus and left ventricular (LV) mass (left), LV mean wall thickness (MWT; middle), and LV end-diastolic volume (EDV; right). Solid black lines represent the random effect regression that uses all individual data points and models the study participant as a random effect to account for the lack of independence between observations on the same individual; dotted lines represent the 95% confidence limits for this regression. Individual data are reported separately in Figure III in the online-only Data Supplement.