science

Shallow breathing

Shallow breathing is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Shallow breathing rather than just read about it. In short: Shallow breathing, thoracic breathing, costal breathing or chest breathing is the drawing of minimal breath into the lungs, usually by drawing air into the chest area using the intercostal muscles rather than throughout the lungs via the diaphragm. Shallow breathing can result in or be symptomatic of rapid breathing and hypoventilation.

Key takeaways

Shallow breathing belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Shallow breathing to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Shallow breathing from memory before moving on to harder problems.

Reference excerpt

Shallow breathing, thoracic breathing, costal breathing or chest breathing is the drawing of minimal breath into the lungs, usually by drawing air into the chest area using the intercostal muscles rather than throughout the lungs via the diaphragm. Shallow breathing can result in or be symptomatic of rapid breathing and hypoventilation. Most people who breathe shallowly do it throughout the day and they are almost always unaware of the condition.

In upper lobar breathing, clavicular breathing, or clavicle breathing, air is drawn predominantly into the chest by the raising of the shoulders and collarbone (clavicles), and simultaneous contracting of the abdomen during inhalation. A maximum amount of air can be drawn this way only for short periods of time, since it requires persistent effort.

Conditions Several conditions are marked by shallow breathing, including: anxiety disorders, asthma, hyperventilation, pneumonia, pulmonary edema, and shock. Overly shallow breathing, also known as hypopnea, may result in hypoventilation. During sleep, breathing originates from the diaphragm, which is sometimes impaired in people with neuromuscular disorders or central sleep apnea.

Illustrations

Shallow breathing: Fig. 6: Shallow breathing using rib muscles — Fig. 6: Shallow breathing using rib muscles

Worked examples

Example 1 — a first encounter with Shallow breathing

Start with the simplest possible case. Write down what Shallow breathing claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Shallow breathing before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Shallow breathing ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Shallow breathing

In research: Shallow breathing appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Shallow breathing in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Shallow breathing is common in secondary-school and first-year university syllabi. It links to neighbouring topics Breathing abnormalities, Sleep disorders, so understanding it makes those chapters shorter.
In everyday life: Look for Shallow breathing outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Shallow breathing in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Shallow breathing means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Shallow breathing out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Shallow breathing in simple terms?

Why does Shallow breathing matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Shallow breathing?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Shallow breathing.