Table 2.

Pearson correlation analysis for the relationship between CS30 and measured items.

	Male		Female
Independent Variable	r	P-value	r	P-value
Age (years)	−0.300	<0.001	−0.168	0.019
Body weight (kg)	−0.064	0.278	−0.211	0.003
BMI (kg/m2)	−0.015	0.796	−0.085	0.236
Muscle mass (kg)	0.038	0.536	−0.194	0.011
SMI (kg/m2)	0.074	0.227	−0.097	0.208
PhA (°)	0.370	<0.001	0.241	0.001
E/e’ (mm)	−0.035	0.619	0.012	0.892
LVEF (%)	−0.111	0.148	−0.334	<0.001
OLST (sec)	0.435	<0.001	0.337	<0.001
GS (kg)	0.303	<0.001	0.217	0.002
AT (mL/min/kg)	0.081	0.170	0.397	<0.001
%AT	0.309	<0.001	0.390	<0.001
Peak VO₂ (mL/min/kg)	0.408	<0.001	0.406	<0.001
%peak VO₂	0.322	<0.001	0.395	<0.001
VE vs. VCO₂ slope	−0.114	0.052	−0.123	0.086
minimum VE/VCO₂	−0.097	0.099	−0.126	0.080
peak RER	0.185	0.001	0.326	<0.001
KCL (point)	−0.410	<0.001	−0.338	<0.001

Correlation analysis dependent variable: CS30, independent variable: age, body weight, BMI, muscle mass, SMI, PhA, E/e’, LVEF, OLST, GS, AT, %AT, peak VO₂, %peak VO₂, VE vs VCO₂ slope, minimum VE/VCO₂, peak RER, KCL.

BMI: body mass index, CS30: 30-Second Chair Stand Test, E/e′: early mitral inflow velocity/early mitral annulus velocity, GS: grip strength, KCL: Kihon checklist, LVEF: left ventricular ejection fraction, minimum VE Vs. VCO₂: minimum ventilation/carbon dioxide output, OLST: One-Leg Standing Time, peak RER: peak respiratory exchange ratio, Peak VO₂: peak oxygen uptake, PhA: phase angle, SMI: skeletal muscle mass index, VE vs. VCO₂ slope: minute ventilation/carbon dioxide output.