Correlation matrix of multiple variables at 1st PLRT vs. VO2VAT at 1st submaximal CPET.

*p ** p VAT: ventilatory anaerobic threshold; CD: change difference from HU to LR; CR: change ratio from HU to LR = CD/HU; HU: head-up; LR: leg raise; LR5: leg raise at the 5th minute; SR: supine rest; CO: cardiac output; CI: cardiac index; DBP: diastolic blood pressure; HR: heart rate; MAP: mean arterial pressure; SBP: systolic blood pressure; SV: stroke volume; SVCom: stroke volume compliance; SVIcom: stroke volume index compliance; TFC: thoracic fluid content; TPR: total peripheral resistance; TPRI: total peripheral resistance indexCorrelation matrix of multiple variables at 1st PLRT vs. VO2VAT at 1st submaximal CPET.