Evidence-Based Optimal Cutoff Values with the Validation of Criterion-Referenced Standards for Sarcopenic Elderly Fitness Improvement

Table 3

Results of ROC curve analysis predicting prevalence sarcopenia in elderly.

Senior fitness variables	Prevalence (%)	AUC (95% CI)	Cutoff value	Sensitivity	Specificity	value
Men
Arm curl (rep.)	8.45	0.718 (0.679~0.754)	≤16	68.75	71.54	<0.001
Low limb strength_ extension (nm)	7.90	0.849 (0.815~0.879)	≤109.22	82.93	75.31	<0.001
Low limb strength_ flexion (nm)	7.90	0.829 (0.794∼0.861)	≤61.72	80.49	75.94	<0.001
Sit-to-stand (rep.)	7.50	0.714 (0.674∼0.753)	≤12	48.72	83.58	<0.001
TUG (sec.)	7.61	0.763 (0.725∼0.798)	>6.367	71.43	70.00	<0.001
6 min walk (m)	6.51	0.707 (0.655∼0.755)	≤388.3	40.91	93.35	0.019
Women
Arm curl (rep.)	12.47	0.715 (0.684~0.744)	≤14	60.36	71.50	<0.001
Low limb strength extension (nm)	9.97	0.728 (0.695~0.760)	≤76.04	86.49	56.74	<0.001
Low limb strength flexion (nm)	9.97	0.793 (0.762∼0.821)	≤37.74	86.49	64.67	<0.001
Sit-to-stand (rep.)	12.0	0.676 (0.641∼0.710)	≤14	69.66	61.81	<0.001
TUG (sec.)	11.9	0.702 (0.669∼0.733)	>6.687	68.37	61.29	<0.001
6 min walk (m)	7.46	0.793 (0.746∼0.835)	≤402.8	68.00	82.90	0.019