Table 2. Correlation coefficients of interdigital muscle thickness (IDMT) with other variables (n=41).

	IDMT relaxation	IDMT contraction
Grip strength	0.372 (p=0.003)	0.482 (p<0.001)
Lateral pinch (Pinch force)	0.230 (p=0.037)	0.388 (p<0.001)
Tip pinch (Pinch force)	0.348 (p=0.001)	0.409 (p<0.001)
Ultrasonography (Adductor pollicis muscle)	0.498 (p<0.001)	0.405 (p<0.001)