After adjustment for these variables , left ventricular structure ( diastolic dimension -LSB- @ % , P = @ -RSB- and left ventricular mass -LSB- @ % , P = @ -RSB- ) , resting stroke volume ( @ % , P = @ ) , left ventricular diastolic dysfunction ( deceleration time -LSB- @ % , P = @ -RSB- and E/e ' -LSB- @ % , P = @ -RSB- ) , and arterial function ( arterial elastance -LSB- @ % , P = @ -RSB- and systemic arterial compliance -LSB- @ % , P = @ -RSB- ) , each explained only a small additional portion of the variance in peak oxygen consumption .