Table 3.

Spearman Correlation Between MQI and Clinical Variables and Exercise Data

	Field MQI	Clinical MQI
6-minute walk test, m	0.33*	0.12
Peak oxygen consumption, mL/kg	0.29*	0.15
Treadmill exercise time, min	0.30*	0.15
Neck circumference, cm	−0.35*	−0.35*
Waist circumference, cm	−0.34*	−0.18
Waist height ratio	−0.51*	−0.21
Hip circumference, cm	−0.36*	−0.22
Body fat, %	−0.30*	−0.03
BMI, kg/m²	−0.36*	−0.29*

Note: *Statistically significant (p ≤ 0.05).

Abbreviations: MQI, muscle quality index; BMI, body mass index.