Section: Coach Breath — Breath as System
This section covers Chapter 3, Lessons 3.1 through 3.4.
Part A — Vocabulary (20 points, 2 points each)
Select the best answer for each question.
1. Autonomic flexibility refers to:
A) Range of motion B) The ability to shift quickly and appropriately between sympathetic and parasympathetic states C) Muscle elasticity D) A breathing pattern
2. Vagal tone refers to:
A) Vocal range B) The strength and responsiveness of vagal signaling; higher is generally favorable C) Sound made when exhaling D) A medical condition
3. Heart Rate Variability (HRV) generally:
A) Falls when autonomic regulation improves B) Rises with healthier autonomic regulation and falls with chronic stress C) Has no physiological meaning D) Equals resting heart rate
4. Respiratory sinus arrhythmia describes:
A) A dangerous heart condition B) The normal rise of heart rate during inhale and fall during exhale, reflecting vagal tone C) An arrhythmia of the lungs D) The same as VO2 Max
5. Co-regulation refers to:
A) Regulating others B) The process by which two nervous systems influence each other through presence C) Government regulation D) Self-regulation only
6. Allostatic load is:
A) Daily caloric intake B) Cumulative wear-and-tear from repeated or prolonged stress C) A type of fitness D) A medication side effect
7. Polyvagal framework refers to:
A) A heart surgery B) A framework describing multiple functional branches of the vagus nerve C) A breathing pattern D) A meditation practice
8. Obstructive Sleep Apnea (OSA) is:
A) Difficulty falling asleep B) Repeated airway closure during sleep, causing oxygen drops and brief awakenings C) Mouth-breathing D) A type of dream
9. AHI (Apnea-Hypopnea Index) is:
A) An asthma classification B) A measure of apneas plus hypopneas per hour of sleep C) A breathing rate D) Blood pressure measurement
10. Ventilatory threshold (VT1) is:
A) Maximum oxygen uptake B) An exercise intensity inflection point where the talk test transitions C) Lung capacity D) Resting breath rate
Part B — Concept Comprehension (20 points, 2 points each)
Select the best answer for each question.
11. The primary driver of increased breath rate during exercise is:
A) Decreasing oxygen supply B) Increasing carbon dioxide production C) Increasing body temperature D) Falling blood pressure
12. The first ventilatory threshold (VT1) corresponds roughly to the intensity at which:
A) You cannot speak any words B) You can still speak full sentences with some effort C) You reach VO2 Max D) Your lactate hits zero
13. Research observed that recreational athletes trained with deliberate nasal breathing can:
A) Run twice as fast B) Comfortably nasal-breathe at workloads they previously thought required mouth breathing C) Stop needing to breathe during exercise D) Eliminate CO2 production
14. Breath during slow-wave (deep) sleep is characterized by:
A) Highly variable rate and depth B) The slowest, most regular pattern of the night C) Frequent breath-holds D) Higher rate than during waking
15. Obstructive sleep apnea differs from simple snoring in that it involves:
A) Singing during sleep B) Complete or partial airway closure causing oxygen drops and brief awakenings C) Only occurs on weekends D) No measurable health effects
16. Coach Breath's position on mouth taping for adolescents during sleep without medical supervision is:
A) Strongly recommended B) Strongly cautioned against; consult a healthcare provider first C) Required for nasal breathing development D) Unrelated to sleep
17. The vagus nerve is best described as:
A) A short nerve in the foot B) The tenth cranial nerve, primary parasympathetic highway, traveling from the brainstem to many organs C) A blood vessel D) Part of the digestive tract
18. Heart rate variability (HRV) generally:
A) Falls when autonomic regulation improves B) Rises with healthier autonomic regulation and falls with chronic stress C) Means nothing physiologically D) Should be exactly the same as resting heart rate
19. Respiratory sinus arrhythmia describes:
A) A dangerous heart condition requiring surgery B) The normal rise of heart rate during inhale and fall during exhale, reflecting vagal tone C) An arrhythmia of the lungs D) The same thing as VO2 Max
20. According to this chapter, the appropriate response for someone struggling with severe anxiety, depression, panic, or thoughts of self-harm is:
A) Practice slow breathing alone for several months B) Avoid telling anyone C) Reach out to a trusted adult, a healthcare provider, or a crisis resource D) Wait for it to pass
Part C — Application (30 points, 6 points each)
Write 2-4 complete sentences for each question. Show your reasoning.
21. Describe how breath functions as both an effect and a cause of the acute stress response.
22. Why does Coach Breath argue that the goal of breath practice is not "always be calm" but autonomic flexibility?
23. Explain co-regulation in your own words. Why does it matter for stress regulation, and how does it appear in everyday life?
24. Walk through the warning signs of sleep-disordered breathing that should prompt a conversation with a healthcare provider.
25. The chapter says "Breath is a friend. Breath is not a replacement for the difficult work of changing what needs to change." What does this mean? Give one example.
Continue to the next section.