Comparison of Effectiveness and Sensitivity Using Two In-Office Bleaching Protocols for a 6% Hydrogen Peroxide Gel in a Randomized Clinical Trial

2017 ◽  
Vol 42 (3) ◽  
pp. 244-252 ◽  
Author(s):  
P Vildósola ◽  
F Vera ◽  
J Ramírez ◽  
J Rencoret ◽  
H Pretel ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Hydrogen Peroxide ◽  
Randomized Clinical Trial ◽  
Absolute Risk ◽  
Color Variation ◽  
Tooth Sensitivity ◽  
Tooth Color ◽  
Protocol Group ◽  
Group A ◽  
Group B

SUMMARY Objective: The aim of this blinded and randomized clinical trial was to compare two application protocols (one 36-minute application vs three 12-minute applications). We then assessed the effectiveness of the bleaching and any increase in sensitivity that was induced by bleaching via a split-mouth design. Methods and Materials: Thirty patients were treated. One group had a half arch of teeth treated with a traditional application protocol (group A: 3 × 12 minutes for two sessions). The other received an abbreviated protocol (group B: 1 × 36 minutes over two sessions). Two sessions were appointed with a two-day interval between them. The tooth color was registered at each session, as well as one week and one month after completing the treatment via a spectrophotometer. This measured L*, a*, and b*. This was also evaluated subjectively using the VITA classical A1-D4 guide and VITA Bleachedguide 3D-MASTER. Tooth sensitivity was registered according to the visual analogue scale (VAS) scale. Tooth color variation and sensitivity were compared between groups. Results: Both treatments changed tooth color vs baseline. The ΔE* = 5.71 ± 2.62 in group A, and ΔE* = 4.93 ± 2.09 in group B one month after completing the bleaching (p=0.20). No statistical differences were seen via subjective evaluations. There were no differences in tooth sensitivity between the groups. The absolute risk of sensitivity reported for both groups was 6.25% (p=0.298). The intensity by VAS was mild (p=1.00). Conclusions: We used hydrogen peroxide (6%) that was light activated with a hybrid LED/laser and two different protocols (one 36-minute application vs three 12-minute applications each for two sessions). These approaches were equally effective. There were no differences in absolute risk of sensitivity; both groups reported mild sensitivity.

Efficacy of and Effect on Tooth Sensitivity of In-office Bleaching Gel Concentrations: A Randomized Clinical Trial

2013 ◽  
Vol 38 (4) ◽  
pp. 386-393 ◽  
Author(s):  
A Reis ◽  
S Kossatz ◽  
GC Martins ◽  
AD Loguercio
Keyword(s):  
Clinical Trial ◽  
Hydrogen Peroxide ◽  
Side Effects ◽  
Randomized Clinical Trial ◽  
Color Change ◽  
Absolute Risk ◽  
Tooth Sensitivity ◽  
Bleaching Gels ◽  
Shade Guide

SUMMARY With the aim of reducing the side effects of in-office bleaching agents, less-concentrated hydrogen peroxide (HP) gels have been released by manufacturers. We evaluated the tooth sensitivity (TS) and bleaching efficacy (BE) of two HP concentrations in this study. Gels containing 35% and 20% HP (HP35 and HP20, respectively) were applied on teeth of 60 caries-free patients. Color was recorded at baseline and one week after the first and second bleaching sessions using the Vita Classical shade guide. TS was recorded on a 0-4 scale. BE at each weekly recall was evaluated by Kruskall-Wallis and Mann-Whitney tests (α=0.05). Absolute risk of TS and its intensity was evaluated by Fisher exact and Mann-Whitney tests, respectively (α=0.05). After two bleaching sessions, color change of approximately eight tabs was obtained with HP35; whereas, with HP20 it was six tabs (p<0.05). Only 26.7% (HP35) and 16.7% (HP20) of the participants reported TS, and no statistical differences were detected among them. Both in-office bleaching gels showed similar TS intensity, but the 35% HP agent produced faster bleaching.

scholarly journals Telemanagement of Home-Isolated COVID-19 Patients Using Oxygen Therapy With Noninvasive Positive Pressure Ventilation and Physical Therapy Techniques: Randomized Clinical Trial (Preprint)

2020 ◽  
Author(s):  
Aya Sedky Adly ◽  
Mahmoud Sedky Adly ◽  
Afnan Sedky Adly
Keyword(s):  
Health Care ◽  
Clinical Trial ◽  
Physical Therapy ◽  
Randomized Clinical Trial ◽  
Health Care System ◽  
Oxygen Therapy ◽  
Early Stage ◽  
Home Based ◽  
Group A ◽  
Group B

BACKGROUND With the growing stress on hospitals caused by the COVID-19 pandemic, the need for home-based solutions has become a necessity to support these overwhelmed hospitals. OBJECTIVE The goal of this study was to compare two nonpharmacological respiratory treatment methods for home-isolated COVID-19 patients using a newly developed telemanagement health care system. METHODS In this single-blinded randomized clinical trial, 60 patients with stage 1 pneumonia caused by SARS-CoV-2 infection were treated. Group A (n=30) received oxygen therapy with bilevel positive airway pressure (BiPAP) ventilation, and Group B (n=30) received osteopathic manipulative respiratory and physical therapy techniques. Arterial blood gases of PaO<sub>2</sub> and PaCO<sub>2</sub>, pH, vital signs (ie, temperature, respiratory rate, oxygen saturation, heart rate, and blood pressure), and chest computed tomography scans were used for follow-up and for assessment of the course and duration of recovery. RESULTS Analysis of the results showed a significant difference between the two groups (<i>P</i>&lt;.05), with Group A showing shorter recovery periods than Group B (mean 14.9, SD 1.7 days, and mean 23.9, SD 2.3 days, respectively). Significant differences were also observed between baseline and final readings in all of the outcome measures in both groups (<i>P</i>&lt;.05). Regarding posttreatment satisfaction with our proposed telemanagement health care system, positive responses were given by most of the patients in both groups. CONCLUSIONS It was found that home-based oxygen therapy with BiPAP can be a more effective prophylactic treatment approach than osteopathic manipulative respiratory and physical therapy techniques, as it can impede exacerbation of early-stage COVID-19 pneumonia. Telemanagement health care systems are promising methods to help in the pandemic-related shortage of hospital beds, as they showed reasonable effectiveness and reliability in the monitoring and management of patients with early-stage COVID-19 pneumonia. CLINICALTRIAL ClinicalTrials.gov NCT04368923; https://clinicaltrials.gov/ct2/show/NCT04368923

Clinical Study of Bleaching Gel Storage Temperature on Tooth Color and Sensitivity

2019 ◽  
Vol 44 (5) ◽  
pp. 459-468 ◽  
Author(s):  
D Hortkoff ◽  
B Fortes Bittencourt ◽  
J Mendes Nadal ◽  
OM Mongruel Gomes ◽  
M Rezende ◽  
...  
Keyword(s):  
Room Temperature ◽  
Rating Scale ◽  
Storage Temperature ◽  
Numerical Rating Scale ◽  
Absolute Risk ◽  
Color Variation ◽  
Tooth Sensitivity ◽  
Tooth Color ◽  
Numerical Rating ◽  
Storage Temperatures

SUMMARY Objective: The objective of this triple-blind, split-mouth, randomized clinical trial was to evaluate the bleaching efficacy and tooth sensitivity of an in-office bleaching agent submitted to different storage temperatures (room temperature at 21.04°C±3.13°C or refrigeration at 5°C). Methods and Materials: Thirty volunteers were selected who had central incisors with color A2 or higher. The volunteers' maxillary hemi-arches received either the bleaching treatment with room temperature or refrigerated storage temperatures (two sessions of 3×15 minutes, one-week interval). Color variation was evaluated by subjective (Vita Classic and Vita Bleachedguide) and objective methods (Vita Easyshade spectrophotometer). Tooth sensitivity was evaluated with the visual analog scale (0–10) and the numerical rating scale (five points). The consistency of bleaching gels was evaluated by flow test, and pH was measured, both in triplicate. Color variation (SGU) and ΔE were analyzed by paired t-test (α=0.05). The absolute risk of pain was assessed by McNemar test (α=0.05), data from the numerical rating scale by the Wilcoxon signed-rank test (α=0.05), and visual analog scale by paired t-test. Comparison between the times within each group was analyzed by Friedman test. Gel consistency and pH were analyzed by one-way analysis of variance and Tukey post-test. Results: Regarding the absolute risk of tooth sensitivity, no significant difference was observed between the groups. The relative risk for tooth sensitivity was 1.13 (95%, confidence interval 0.70–1.82). Both tooth sensitivity scales were statistically similar. The results of the subjective evaluation (Vita Classic: p=0.73, Vita Bleachedguide: p=1.00) and the objective evaluation (p=1.00) of bleaching efficacy corresponded to the hypothesis of equality between groups after bleaching. Both pH values were around 7, and for the consistency test, there were significant differences between the groups (p=0.002). Conclusions: Storage temperature of the analyzed in-office bleaching agent had no influence on tooth color effectiveness and tooth sensitivity.

scholarly journals In-Office Tooth Bleaching for Adolescents Using Hydrogen Peroxide-Based Gels: Clinical Trial

2017 ◽  
Vol 28 (6) ◽  
pp. 720-725 ◽  
Author(s):  
Marcela Leticia Leal Gonçalves ◽  
Antonio Carlos da Silva Tavares ◽  
Ana Carolina Costa da Mota ◽  
Luiz Alberto Plácido Penna ◽  
Alessandro Melo Deana ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Hydrogen Peroxide ◽  
Statistical Significance ◽  
Young Patients ◽  
Tooth Bleaching ◽  
Controlled Clinical Trial ◽  
Tooth Sensitivity ◽  
Tooth Color ◽  
Bleaching Procedure ◽  
Shade Guide

Abstract The aim of the present study was to evaluate colorimetric changes and tooth sensitivity in adolescents and young patients submitted to tooth bleaching with 20% and 35% hydrogen peroxide. A randomized, controlled, clinical trial was conducted with 53 patients aged 11 to 24 years who were allocated to groups based on the use of the following commercial products: Whiteness HP - FGM® (35% hydrogen peroxide); Whiteness HP Blue Calcium - FGM® (35% hydrogen peroxide); and Whiteness HP Blue Calcium - FGM® (20% hydrogen peroxide). After the bleaching procedure, the visual analog scale was used to measure tooth sensitivity and the Vita Classical Shade guide was used to determine changes in tooth color. Statistical analysis involved the Friedman, Kruskal-Wallis and Student-Newman-Keuls tests, with p≤0.05 considered indicative of statistical significance. The addition of calcium contributed to a reduction in tooth sensitivity, especially when the lower concentration of hydrogen peroxide (20%) was used. Tooth sensitivity occurred in a transitory way and did not influence the tooth bleaching process. Significant differences in color were found after each of the two bleaching sessions. In-office tooth bleaching was considered an effective method for adolescents and young adults. Further studies in this population are necessary in order to fully evaluate the effects of bleaching in young teeth.

scholarly journals Coadministration of ibuprofen/caffeine on bleaching-induced tooth sensitivity: A randomized clinical trial

2021 ◽  
Vol 32 (3) ◽  
pp. 105-115
Author(s):  
Karine Letícia da Silva ◽  
Elisama Sutil ◽  
Diego Hortkoff ◽  
Renata Maria Oleniki Terra ◽  
Márcia Rezende ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Randomized Clinical Trial ◽  
Repeated Measures ◽  
Rating Scale ◽  
Absolute Risk ◽  
Tooth Sensitivity ◽  
Dental Bleaching ◽  
Significance Level ◽  
Significant Difference ◽  
The Absolute

Abstract This clinical trial evaluated the effect of the coadministration of ibuprofen/caffeine on bleaching-induced tooth sensitivity (TS). A triple-blind, parallel-design, randomized clinical trial was conducted on 84 patients who received ibuprofen/caffeine or placebo capsules. The drugs were administered for 48 hours, starting 1 hour before the in-office bleaching. Two bleaching sessions were performed with 35% hydrogen peroxide gel with 1-week interval. TS was recorded up to 48 hours after dental bleaching with a 0-10 visual analogic scale (VAS) and a 5-point numeric rating scale (NRS). The color was evaluated with VITA Classical and VITA Bleachedguide scales (ΔSGU) and VITA Easyshade spectrophotometer (ΔE*ab and ΔE00). The absolute risk of TS in both groups was evaluated using Fischer's exact test. Comparisons of the TS intensity (NRS and VAS data) were performed by using the Mann-Whitney test and a two-way repeated measures ANOVA, respectively. The color alteration between the groups was compared with the Student's t test. The significance level was 5%. There was no statistically significant difference between the groups for the absolute risk of TS (p = 1.00) or for the intensity of TS (p > 0.05). A bleaching of approximately 7 shade guide units was observed on the Vita Classical and Vita Bleachedguide scales, with no statistical difference between the groups. It was concluded that coadministration of ibuprofen and caffeine did not reduce the absolute risk or intensity of TS and did not interfere with the efficacy of dental bleaching.

scholarly journals Comparison of the effect of Chamomile and Mefenamic Acid on primary dysmenorrhea, associated symptoms and menstrual bleeding – A randomized clinical trial study

2020 ◽  
Author(s):  
Fatemeh Shabani ◽  
Katayon Vakilian ◽  
Fereshteh Narenji ◽  
Mahbubeh Bozorgi ◽  
Soodabeh Bioos ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Randomized Clinical Trial ◽  
Mefenamic Acid ◽  
Statistical Tests ◽  
Primary Dysmenorrhea ◽  
Verbal Scale ◽  
Associated Symptoms ◽  
Ethics Code ◽  
Group A ◽  
Group B

Abstract Background Dysmenorrhea is one of the most common pelvic pains in women, impairing their quality of life.This study investigated the effects of chamomile sachet and mefenamic acid on primary dysmenorrhea, associated symptoms and bleeding. Methods In this randomized clinical trial, 200 female students with primary dysmenorrhea from Arak universities were randomly assigned to two groups. The group (A) received mefenamic acid (250 mg) and group (B) received chamomile (5000 mg) plus one teaspoonful of honey )as a flavoring( for two days before up to the first three days of menstruation, three times a day in two consecutive cycles. Pain severity, associated symptoms and bleeding were assessed using visual analog scale, Andersch-Milsom Verbal Scale and Higham chart, respectively. Data were analyzed by descriptive and inferential statistical tests by SPSS 21. Results Severe pain during two months after intervention was in 6 (6.3%) of group (B) and 6 (6.3%) in group (A) (p = 0.351, p = 0.332). Mean severity of associated symptoms two months after the treatment was( 4.93 ± 3.54) in group (B) and (5.62 ± 3.54 ) in group (A), indicating further reduction in group (B) but not significant (p = 0.278). Mean of bleeding was (88.71 ± 66.4 vs. 70.54 ± 53. 34) in group (B) and (A) respectively, in two months later. therefore decrease in the two groups but was not significant between groups(p = 0.567). Conclusions It seems chamomile sachet can reduce the severity of pain and bleeding similar to mefenamic acid and even further mitigate the symptoms associated with dysmenorrhea. Trial registration: This study was performed with the proposal approval code of 2611, ethics code of (ARAKMU.REC.1395.164) at Arak University of medical sciences and code of IRCT 2016100825031N5 on 2016.11.08.

scholarly journals LAND BASED EXERCISES VERSUS POOL BASED EXERCISES FOR SWIMMER’S SHOULDER IN COMPETITIVE SWIMMERS: RANDOMIZED CLINICAL TRIAL

2021 ◽  
Vol 10 (4) ◽  
pp. 3296-3299
Author(s):  
Waqar M. Naqvi
Keyword(s):  
Clinical Trial ◽  
Randomized Clinical Trial ◽  
Shoulder Pain ◽  
Pain Disability Index ◽  
Pain Disability ◽  
Significant Difference ◽  
Shoulder Strength ◽  
Group A ◽  
Group B ◽  
Competitive Swimmers

To compare the effect of Land based exercises and Pool based exercises for shoulder strength to reduce shoulder pain in competitive swimmers using Shoulder Pain Disability Index (SPADI) score, Hand-Held dynamometer (HHD), Randomized Clinical trial.29 competitive swimmers with age group between 8 to 18 years were evaluated for shoulder pain using Shoulder Pain Disability Index Score [SPADI] and shoulder strength was evaluated using Hand Held Dynamometer [HHD] before and after the study. Then all the subjects were divided into 2 groups, for Group A Pool based exercises were given and for Group B Land based exercises were given. Statistically there is significant difference in values of outcome measures after the study in both groups but there is more significant difference in Group A than Group B. Pool based exercises showed more significant effect on shoulder pain than land based exercises in swimmer’s shoulder.

scholarly journals Telemanagement of Home-Isolated COVID-19 Patients Using Oxygen Therapy With Noninvasive Positive Pressure Ventilation and Physical Therapy Techniques: Randomized Clinical Trial

10.2196/23446 ◽  
2021 ◽  
Vol 23 (4) ◽  
pp. e23446
Author(s):  
Aya Sedky Adly ◽  
Mahmoud Sedky Adly ◽  
Afnan Sedky Adly
Keyword(s):  
Health Care ◽  
Clinical Trial ◽  
Physical Therapy ◽  
Randomized Clinical Trial ◽  
Health Care System ◽  
Oxygen Therapy ◽  
Early Stage ◽  
Home Based ◽  
Group A ◽  
Group B

Background With the growing stress on hospitals caused by the COVID-19 pandemic, the need for home-based solutions has become a necessity to support these overwhelmed hospitals. Objective The goal of this study was to compare two nonpharmacological respiratory treatment methods for home-isolated COVID-19 patients using a newly developed telemanagement health care system. Methods In this single-blinded randomized clinical trial, 60 patients with stage 1 pneumonia caused by SARS-CoV-2 infection were treated. Group A (n=30) received oxygen therapy with bilevel positive airway pressure (BiPAP) ventilation, and Group B (n=30) received osteopathic manipulative respiratory and physical therapy techniques. Arterial blood gases of PaO2 and PaCO2, pH, vital signs (ie, temperature, respiratory rate, oxygen saturation, heart rate, and blood pressure), and chest computed tomography scans were used for follow-up and for assessment of the course and duration of recovery. Results Analysis of the results showed a significant difference between the two groups (P<.05), with Group A showing shorter recovery periods than Group B (mean 14.9, SD 1.7 days, and mean 23.9, SD 2.3 days, respectively). Significant differences were also observed between baseline and final readings in all of the outcome measures in both groups (P<.05). Regarding posttreatment satisfaction with our proposed telemanagement health care system, positive responses were given by most of the patients in both groups. Conclusions It was found that home-based oxygen therapy with BiPAP can be a more effective prophylactic treatment approach than osteopathic manipulative respiratory and physical therapy techniques, as it can impede exacerbation of early-stage COVID-19 pneumonia. Telemanagement health care systems are promising methods to help in the pandemic-related shortage of hospital beds, as they showed reasonable effectiveness and reliability in the monitoring and management of patients with early-stage COVID-19 pneumonia. Trial Registration ClinicalTrials.gov NCT04368923; https://clinicaltrials.gov/ct2/show/NCT04368923

scholarly journals Efektivitas terapi komplementer propolis telaah terhadap SGHT dan IL-33 sekret hidung penderita rinitis alergi

2019 ◽  
Vol 49 (1) ◽  
pp. 57
Author(s):  
Yunis Sucipta Ibnu ◽  
Dwi Reno Pawarti ◽  
Mansyur Siddiq Wiyadi
Keyword(s):  
Clinical Trial ◽  
Allergic Rhinitis ◽  
Randomized Clinical Trial ◽  
Standard Therapy ◽  
Nasal Secretion ◽  
Tropical Disease ◽  
Double Blind ◽  
Interleukin 33 ◽  
Group A ◽  
Group B

Latar belakang: Rinitis alergi (RA) adalah inflamasi mukosa hidung yang diperantarai oleh IgE. Gejala dapat dinilai dengan Skor Gejala Hidung Total (SGHT). Patofisiologi dan manifestasi klinis RA dipengaruhi oleh berbagai sitokin diantaranya interleukin 33 (IL-33). Efektivitas propolis maupun flavonoid dalam menurunkan SGHT dan kadar IL-33 sekret hidung masih kontroversi. Tujuan: Membuktikan bahwa penambahan propolis pada terapi komplementer RA lebih efektif menurunkan SGHT dan kadar IL-33 sekret hidung. Metode: Penelitian double blind randomized clinical trial (RCT), dilakukan di Unit Rawat Jalan (URJ) Divisi Alergi Imunologi, Departemen Telinga Hidung Tenggorok-Bedah Kepala Leher (THT-KL) RSUD Dr. Soetomo, dan Institute of Tropical Disease, Universitas Airlangga, Surabaya pada bulan September 2018-Januari 2019. Pasien RA yang memenuhi kriteria inklusi diperiksa SGHT dan kadar IL-33 sekret hidung. Terapi diberikan selama 14 hari, evaluasi SGHT dan kadar IL-33 dilakukan hari ke-15. Hasil: Sepuluh sampel mendapat propolis dan terapi standar (kelompok A), sepuluh sampel mendapat terapi standar (kelompok B). Perbandingan SGHT antar kelompok setelah terapi rerata kelompok A=1,6 (SD 1,7), kelompok B=5,2 (SD 1,6). Uji Mann-Whitney satu arah p=0,001 menunjukkan SGHT antar kelompok setelah terapi berbeda signifikan (p<0,005). Rerata kadar IL-33 setelah terapi kelompok A=0,051 (SD 0,005), kelompok B=0,051 (SD 0,013). Uji t nilai p=0,881 menunjukkan kadar IL-33 sekret hidung antar kelompok setelah terapi berbeda tidak signifikan (p>0,005). Kesimpulan: Penambahan propolis sebagai terapi komplementer lebih efektif dalam menurunkan SGHT dibandingkan dengan terapi standar saja, namun tidak efektif dalam menurunkan kadar IL-33 sekret hidung penderita RA. Background: Allergic rhinitis (AR) is a nasal mucosa inflammation mediated by IgE. The symptoms severity is determined by total nasal symptom score (TNSS). The pathophysiology and clinical manifestations of AR are affected by several cytokines, one of which is interleukin 33 (IL-33). Efficacy of propolis or flavonoid in reducing TNSS and IL-33 level in nasal secretion is still a controversy. Purpose: To find out whether propolis addition to standard therapy could be more effective in reducing TNSS and IL-33 level of nasal secretion. Method: Double blind randomized clinical trial (RCT). The study was conducted at Outpatient unit of Department of Allergic and Immunology, Dr. Soetomo General Hospital, Surabaya and Institute of Tropical Disease (ITD) Universitas Airlangga. Allergic rhinitis patients who met inclusion criteria were examined for TNSS and IL-33 nasal secretion level. Therapy was given for 14 days, after which TNSS and IL-33 levels were evaluated on day 15th. Ten samples received propolis and standard therapy (group A), ten samples received standard therapy only (group B). Result: The comparison of TNSS groups after treatment: mean group A=1.6 (SD 1.7), and mean group B=5.2 (SD 1.6). One way Mann-Whitney test showed p=0.001 indicating the TNSS after treatment was significantly different (p<0.005). The comparison of IL-33: mean group A=0.051(SD=0.005) and mean group B=0.051(SD=0.013), t-test p=0.0881 indicating the IL-33 level of nasal secretion after treatment was not significantly different (p>0.005). Conclusion: Propolis as a complementary therapy was more effective reducing TNSS compared to standard therapy only, but it was not effective in reducing IL-33 level of nasal secretion.

scholarly journals Maternal-fetal acute responses to two moderate-intensity exercise types: a randomized clinical trial

10.3823/2558 ◽  
2018 ◽  
Vol 11 ◽  
Author(s):  
Jousilene de Sales Tavares ◽  
Adriana Suely Oliveira Melo ◽  
Suzana Farias Leite ◽  
Alexandre Sergio Silva ◽  
João Guilherme Alves ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Heart Rate ◽  
Randomized Clinical Trial ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Moderate Intensity ◽  
Maternal Heart Rate ◽  
Group A ◽  
Exercise Type ◽  
Group B

Objective:  This study aims to compare maternal and fetal responses during two physical exercise types. Design:  A randomized clinical trial compared 120 pregnant women, gestational age of 35-37 weeks, 56 exercising on a stationary bicycle (Group A) and 64 on a treadmill (Group B). Methods: Participants were monitored for three 20-minute phases: resting, exercise and recovery.  Fetal heart rate (FHR) and maternal heart rate (MHR) were monitored.  Glucose and lactate levels were evaluated at rest and during exercise. Results:  After the beginning of exercise, maximum lactate (L) levels were reached at 20 minutes and never exceeded 4 mmol/l.  FHR decreased by 22 bpm during exercise in relation to resting values, irrespective of the exercise type (p<0.001).  Comparing the exercise types, the incidence of bradycardia after 10’ was 23.2% in Group A and 35.9% in Group B (p>0.05), increasing at 20’ to 32% and 40.6%, respectively, (p>0.05).  The FHR decrease during exercise was accompanied by a simultaneous increase in its variability (p<0.001), nevertheless a rapid return to resting values was observed shortly after exercise end.  Glucose decreased in both groups irrespective of the exercise type (85 mg/dl at rest; 79 mg/dl during exercise and 81 mg/dl during recovery; p<0.001). There were no hypoglycemia cases. Conclusions: FHR variability increase and the rapid return to resting values after exercise suggests that the FHR fall and the presence of bradycardia during exercise is the fetal physiologic response to blood flow redistribution, with maintenance of fetal well-being. Key-words: Exercise; fetal heart rate; glucose; maternal heart rate; pregnancy Clinical Trial Registration: ClinicalTrials.gov, www.clinicaltrials.gov, NCT01383889.

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