Table 1: Spectral analysis on frequency domain in the 1T, 2T, 3T and PP intervals.
|
Interval |
1T |
2T |
3T |
PP |
|
At Rest |
|
|
|
|
|
RR (rpm) |
14 |
19 |
16 |
17 |
|
HR (bpm) |
73.07 |
77.05 |
97.43 |
76.74 |
|
HRV (ms2) |
1585.25 |
830.70 |
5735.91 |
9554.70 |
|
LF (nu) |
12.62 |
58.12 |
41.69 |
47.04 |
|
HF (nu) |
76.8 |
33.39 |
27.89 |
41.48 |
|
LF/HF |
0.16 |
1.74 |
1.49 |
1.13 |
|
Deep breathing |
|
|
|
|
|
RR (rpm) |
6 |
6 |
6 |
6 |
|
HR (bpm) |
110.88 |
84.24 |
76.29 |
79.90 |
|
HRV (ms2) |
3659.5 |
9115.99 |
11916.20 |
9116.99 |
|
LF (nu) |
26.39 |
19.87 |
5.25 |
20.85 |
|
HF (nu) |
73.61 |
76.39 |
94.13 |
71.75 |
|
LF/HF |
0.36 |
0.26 |
0.056 |
0.29
|
|
Active stand |
|
|
|
|
|
RR (rpm) |
18 |
20 |
19 |
13 |
|
HR (bpm) |
104.52 |
101.22 |
106.68 |
84.60 |
|
HRV (ms2) |
1563.76 |
564.74 |
369.07 |
4629.88 |
|
LF (nu) |
47.30 |
60.90 |
23.88 |
45.39 |
|
HF (nu) |
14.24 |
2.62 |
35.66 |
23.70 |
|
LF/HF |
3.32 |
23.22 |
0.67 |
1.91 |
RR, HR, HRV; LF, HF and LF/HF, at rest and after deep breathing and active stand tests. 1T: First Trimester; 2T: Second Trimester; 3T: Third Trimester; PP: Post-Partum; RR: Respiration Rate (respiration per minute-RPM); HR: Heart Rate (beat per minute - BMP); HRV: Heart Rate Variability; LFnu: Low Frequency component in normalized unit; HFnu: High Frequency component in normalized units; LF/HF: LF/HF index