Table 2. Results of Dynamic ECG Recording for Each Group.

Parameter	HGF-MSC group	PBS group	MSC group
Time domain
SDNN (ms)	97.00±32.01	106.90±70.91	108.33±47.74
CV (%)	10.56±3.71	20.43±15.81	13.52±6.85
SDANN (ms)	84.22±29.41	81.60±48.85	100.89±51.27
rMSSD (ms)	35.22±9.23 ab	12.60±2.88	21.44±10.97 a
pNN50 (%)	11.06±6.19 ab	0.69±0.54	5.02±5.34 a
Frequency domain
LF	44.29±16.12 ab	93.59±23.33	57.76±8.02 a
HF	35.34±16.83	21.37±14.25	22.54±13.49
LF/HF	1.68±1.11 ab	5.50±2.59	3.11±1.17 a

^a, P<0.05 vs. the PBS group;

^b, P<0.05 vs. the MSC group.