| Baseline | Recovery |
---|
Parameters | C | S | C | S |
---|
Time Domain | | | | |
VarRR (ms2) | 1152 ± 39 | 717 ± 44* | 1346 ± 130 | 890 ± 66*† |
SDNN (ms) | 40 ± 8 | 30 ± 5* | 41 ± 6 | 44 ± 8† |
rMSSD (ms) | 34 ± 3 | 14 ± 2* | 42 ± 4 | 35 ± 3† |
pNN50 (%) | 8.7 ± 1.0 | 2.2 ± 0.5* | 17.3 ± 4.2† | 7.5 ± 1.6*† |
Frequency Domain | | | | |
LF (ms2) | 266 ± 80 | 216 ± 35 | 317 ± 81 | 244 ± 33† |
LF (%) | 23 ± 6 | 12 ± 4 | 21 ± 5 | 25 ± 8† |
HF (ms2) | 384 ± 75 | 55 ± 13* | 533 ± 80 | 154 ± 30*† |
HF (%) | 33.1 ± 9 | 8.4 ± 2* | 38.2 ± 6 | 16.3 ± 3*† |
Symbolic analysis | | | | |
0V (%) | 21 ± 3 | 39.9 ± 2 | 24 ± 3 | 30.0 ± 3† |
1V (%) | 49 ± 1 | 42.5 ± 1 | 48 ± 2 | 45 ± 2 |
2V (%) | 30 ± 3 | 17.3 ± 1 | 28 ± 4 | 25 ± 3† |
- Values expressed as mean ± SD. C control group, S stroke group, VarRR variance of RR interval, SDNN standard deviation of the RR interval, rMSSD root-mean square of differences of successive RR intervals, pNN50% of differences of adjacent RR intervals > 50 ms, LF low frequency band in absolute and normalized values, HF high frequency band in absolute and normalized values, LF/HF low frequency/high frequency ratio; patterns with no variation (0 V; i. e., all 3 symbols were equal), (2) patterns with 1 variation (1 V; i. e., 2 symbols were equal and the remaining symbol was different), and patterns with 2 variations (2 V; i. e., all symbols were different from the previous ones) *P < 0.05 vs. C; †P < 0.05 vs. baseline in the same group; ‡P < 0.05 vs. post-exercise in the same group