Chapter 12: No Sleep Edition (from the book)
What is the amount of blood pumped by the heart per unit of time known as?
Cardiac output
What is the primary function of the heart?
It keeps the blood flowing
Who were the participants in this study?
Retired day and night shift workers aged 60 or older
What was the research question? (broad)
Do shift workers experience continued sleep dysregulation into retirement?
Was the hypothesis supported?
No :(
RSA reflects the activity of which cranial nerve?
Vagus nerve
What separates the left side of the heart from the right side of the heart? (hint: think of your nose)
Septum
What was used to record participants' heart rate?
Electrocardiogram (ECG)
Which two variables were compared between retired night shift and day workers?
Heart rate (HR) and high frequency heart rate variability (HF-HRV)
What was one limitation of this study?
The sample was predominately non-hispanic white individuals
Name two common problems with ECG recordings.
1) 60 Hz interference
2) Movement artifacts
Name two heart valves.
Mitral, tricuspid, aortic, and pulmonary
How long was the entire laboratory session?
60 hours
What condition were participants put under during the study?
What type of design could researchers do for future studies?
Longitudinal
Auscultatory methods of automated blood pressure recordings rely on what?
Changes in sound via a microphone
What is hypertension commonly known as? And what value classifies it?
High blood pressure, 130/80
Nocturnal polysomnography was conducted on which of the nights?
Nights one and three
Was the ratio of night shift to day workers and men to women equal?
Yes! (33 RNSW, 37 RDW) (47% female)
Does sleep recovery occur in one singular night?
No! It takes multiple
What is the difference between systolic blood pressure and diastolic blood pressure?
Systolic - when the heart contracts
Diastolic - when the heart relaxes between beats
What is a myocardial infarction commonly known as?
A heart attack
What did participants have to do for seven days prior to the study?
Keep a sleep-wake diary
When talking about sleep, what does NREM and REM refer to?
Non-rapid eye movement and rapid eye movement
Researchers found that recovery sleep did NOT appear restorative for which system?