Autonomic Nervous System Imbalance
Conditions
Keywords
heart rate variability; night shift; autonomic nervous system; six-minute walk test; nurses
Brief summary
To evaluate changes in heart rate variability (HRV) after the six-minute walk test (6MWT) in nurses following a night shift and explore the impact of night shift work on the regulation of the autonomic nervous system in the heart. Thirty-five female nurses, with a mean age of 28.7 years (range 21.0-37.0 years), participated in this study. On the first and second mornings after a night shift, the nurses performed the 6MWT. During the test, electrocardiogram (ECG) signals, blood pressure, and walking distance were recorded simultaneously.
Interventions
BEHAVIORALworking night shift
working night shift
Sponsors
Nanfang Hospital, Southern Medical University
Study design
Observational model
OTHER
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
FEMALE
Age
18 Years to 60 Years
Healthy volunteers
Yes
Inclusion criteria
* Female nurses aged ≥ 18 years who had undergone annual physical examinations, did not have serious cardiopulmonary diseases, and were able to walk normally were considered for inclusion in the study.
Exclusion criteria
* (ⅰ) having children at home who require night care; (ⅱ) current pregnancy; (ⅲ) engaging in activities that significantly impact heart rate, such as sexual activity, 24 hours before and 24 hours after working night shifts; (ⅳ) history of thyroid dysfunction, hypertension, diabetes, coronary heart disease, etc.; (ⅴ) experiencing upper respiratory tract infection, fever, cough, diarrhea, or other illnesses within 1 week before the planned enrollment; (ⅵ) consuming coffee or strong tea, smoking, drinking alcohol, or using other substances that affect heart rate 3 days before the planned enrollment; (ⅶ) taking β-receptor blockers, sleeping pills, psychotropic drugs, or other medications that affect heart rate; and (ⅷ) judged by the investigator to be unsuitable for participation in this study.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Delta HRV during the 6MWT | 18 minutes | On the first and second mornings after a night shift, the nurses performed the 6MWT.During the test, electrocardiogram (ECG) signals was recorded simultaneously. |
Countries
China
Outcome results
None listed