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Development of daily rhythmicity in heart rate and locomotor activity in the human fetus Cover

Development of daily rhythmicity in heart rate and locomotor activity in the human fetus

Journal of Circadian Rhythms
Volume 3 (2005): Issue 0
By: Paliko I Kintraia,  Medea G Zarnadze,  Nicolas P Kintraia and  Ia G Kashakashvili  
Open Access
|Mar 2005

Figures & Tables

Table 1

Hourly layout for 24-hour period frequencies of maternal and fetal heart rate rhythms. (36 – 40 weeks gestation)

Time of day (h) Mother (bpm) Fetus (bpm)
7 – 866.5 ± 1.3 *133 ± 1.9 **
8 – 968 ± 1.2 *133 ± 2.1 **
9 – 1068.5 ± 1.3 **132 ± 2.0 **
10 – 1172 ± 1.4 **136 ± 2.1 **
11 – 1276 ± 1.4 **135 ± 2.3 **
12 – 1379 ± 1.3 *136 ± 2.3 **
13 – 1479 ± 1.2 *134 ± 1.9 *
14 – 1575 ± 1.2 *136 ± 2.1 **
15 – 1676 ± 1.1 *133 ± 2.3 *
16 – 1776 ± 1.1 *132 ± 1.8 **
17 – 1876.5 ± 1.2 *133 ± 2.2 **
18 – 1979 ± 1.0 *135 ± 1.8 **
19 – 2071 ± 1.1 *131 ± 1.8 *
20 – 2172 ± 1.1 **133 ± 2.0 *
21 – 2269 ± 1.2 *135 ± 1.9 **
22 – 2370 ± 1.1 *134 ± 1.8 **
23 – 2465 ± 1.0 *136.5 ± 2.0 **
24 – 164 ± 1.2 *138.5 ± 1.9 *
1 – 265 ± 1.1 *138.5 ± 2.2 *
2 – 361 ± 1.2 *133.5 ± 1.9 **
3 – 464 ± 1.1 *136 ± 1.8 **
4 – 562 ± 1.1 *132 ± 1.9 **
5 – 666.5 ± 1.1 *133 ± 2.1 **
6 – 768 ± 1.0 *134 ± 2.2 **

* p < 0.001 (compared to heart rate at 7 am).

** p > 0.05.

1740-3391-3-5-1.jpg
Figure 1

Hourly layout for 24-hour period frequencies of maternal and fetal heart rate rhythms (36 – 40 weeks gestation)

1740-3391-3-5-2.jpg
Figure 2

Hourly layout for 24-hour period frequencies of maternal and fetal heart rate rhythms (36 – 40 weeks gestation)

1740-3391-3-5-3.jpg
Figure 3

Types of cardiotachograms

Table 2

ECG and locomotor activity of the fetus in "quiet" hours (4 a.m. to 9 a.m., 2 p.m. to 7 p.m.) (36 – 40 weeks gestation)

Time (h) Type Duration Time (h) Duration
Oscillation type Fetal movements Recording Oscillation type Fetal movements Recording
Min. Sec. Min. Sec. Min. Min. Sec. Min. Sec. Min.
4–5I-20 ± 0.2--54 ± 0.314–15-10 ± 0.2--40 ± 0.4
II16 ± 0.3--50 ± 03 ± 0.4--50 ± 0.1
III20 ± 0.2---30 ± 0.4---
IV18 ± 0.2---7 ± 0.1---
5–6I--1 ± 0.1-46 ± 0.215–161 ± 0.2---54 ± 0.3
II7 ± 0.4---7 ± 0.2-2 ± 0.1-
III30 ± 0.3---24 ± 0.1---
IV9 ± 0.3---21 ± 0.2---
6–7I-30 ± 0.2--59 ± 0.216–17-20 ± 0.3--45 ± 0.1
II18 ± 0.1-130 ± 0.312 ± 0.1-1 ± 0.3-
III26 ± 0.1---21 ± 0.1---
IV15 ± 0.2--11 ± 0.1---
7–8I-50 ± 0.1--50 ± 0.517–18-20 ± 0.1--45 ± 0.3
II12 ± 0.4---8 ± 0.2-150 ± 0.1
III22 ± 0.4-15 ± 0.120 ± 0.1---
IV15 ± 0.3---16 ± 0.1---
8–9I-20 ± 0.1--40 ± 0.218–19-10 ± 0.1--42 ± 0.1
II---50 ± 0.14 ± 0.3--40 ± 0.2
III28 ± 0.3---25 ± 0.2---
IV12 ± 0.3---12 ± 0.3---
Table 3

ECG and locomotor activity of the fetus in "active" hours (9 a.m. to 2 p.m.) (36 – 40 weeks gestation)

Time (h) Type Duration Time (h) Duration
Oscillation type Fetal movements Recording Oscillation type Fetal movements Recording
Min Sec Min Sec Min Min Sec Min Sec Min
9–10I-45 ± 0.27 ± 0.2-48 ± 0.212–13-10 ± 0.28 ± 0.1-30 ± 0.3
II6 ± 0.2---10 ± 0.1--50 ± 0.1
III7 ± 0.3---2 ± 0.1---
IV35 ± 0.1---17 ± 0---
10–11I-50 ± 0.43 ± 0.1-24 ± 0.313–142 ± 0.3-4 ± 0.3-48 ± 0.1
II8 ± 0.1---8 ± 0.1---
III3 ± 0.1---8 ± 0.2---
IV12 ± 0.0150 ± 0.1--30 ± 0.1---
11–12I-30 ± 0.2450 ± 0.138 ± 0.2Total from 9–146–42 ± 0.1645 ± 0.262650 ± 0.16188 ± 0.22
II10 ± 0.3---25 ± 0.24
III5 ± 0.3---116
IV22 ± 0.2--50 ± 0.12
Table 4

EEG and locomotor activity of the fetus in "active" hours (from 7 p.m. to 4 a.m.) (36 – 40 weeks gestation)

Time (h) Type Duration Time (h) Duration
Oscillation type Fetal movements Recording Oscillation type Fetal movements Recording
Min Sec. Min Sec. Min Min Sec. Min Sec. Min
19–20I3 ± 0.1-450 ± 054 ± 0.124–12 ± 0.2-4 ± 0.1-53 ± 0.2
II15 ± 0.2---14 ± 0.1---
III4 ± 0.1---4 ± 0.4---
IV32 ± 0.2---33 ± 0.4---
20–21I-10 ± 0.24 ± 0.2-30 ± 0.21 – 21 ± 0.1-6 ± 0.3-34 ± 0.4
II10 ± 0.1---11 ± 0.2---
III5 ± 0.1---7 ± 0.4---
IV15 ± 0.2---15 ± 0.2---
21–22I--3 ± 0.1-39 ± 0.32 – 31 ± 0.2-4 ± 0.2-53 ± 0.1
II12 ± 0.4---18 ± 0.1---
III22 ± 0.4---7 ± 0.1---
IV15 ± 0.3---27 ± 0.2---
22–23II40 ± 0.216 ± 0.2-26 ± 0.33 – 4-30 ± 0.3330 ± 0.231 ± 0.2
II7 ± 0.1---9 ± 0.1---
III----7 ± 0.1---
IV18 ± 0.3---15 ± 0.3---
23–24I1 ± 0.3-3 ± 0.2-58 ± 0.1Total from 19-41220 ± 0.214320 ± 0.16388 ± 0.21
II23 ± 0.3---123 ± 0.15-
III5 ± 0.2---44 ± 0.17-
IV29 ± 0.4---200 ± 0.26-
1740-3391-3-5-4.jpg
Figure 4

ECG of the fetus in "quiet" hours (4 a.m. to 9 a.m.) 36–40 weeks gestation

1740-3391-3-5-5.jpg
Figure 5

ECG of the fetus in "quiet" hours (2 p.m. to 7 p.m.) 36 – 40 weeks gestation

1740-3391-3-5-6.jpg
Figure 6

ECG activity of the fetus in "active" hours (9 a.m. to 2 p.m.) 36 – 40 weeks gestation.

1740-3391-3-5-7.jpg
Figure 7

ECG activity of the fetus in "active" hours (from 7 p.m. to 4 a.m.) 36–40 weeks gestation

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Figure 8

Fetal cardiotachogram for "active" period

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Figure 9

Fetal cardiotachogram for "quiet" period

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Figure 10

Fetal locomotor activity in "quiet" and "active" hours (36 – 40 weeks gestation)

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Figure 11

Correlation of quiet and active periods for mother

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Figure 12

Response of the fetus to functional load in "active" hours ("acceleration" type)

1740-3391-3-5-13.jpg
Figure 13

Response of the fetus to functional load in "quiet" hours ("zero" type)

DOI: https://doi.org/10.1186/1740-3391-3-5 | Journal eISSN: 1740-3391
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Language: English
Published on: Mar 25, 2005
Published by: Ubiquity Press
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2005 Paliko I Kintraia, Medea G Zarnadze, Nicolas P Kintraia, Ia G Kashakashvili, published by Ubiquity Press
This work is licensed under the Creative Commons Attribution 4.0 License.

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