Pull-up

Key takeaways

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

Reference excerpt

A pull-up is an upper-body strength exercise. The pull-up is a closed-chain movement where the body is suspended by the hands, gripping a bar or other implement at a distance typically wider than shoulder-width, and pulled up. As this happens, the elbows flex and the shoulders adduct and extend to bring the elbows to the torso. Pull-ups build up several muscles of the upper body, including the latissimus dorsi, trapezius, and biceps brachii. A pull-up may be performed with overhand (pronated), underhand (supinated)—sometimes referred to as a chin-up—neutral, or rotating hand position. Pull-ups are used by some organizations as a component of fitness tests, and as a conditioning activity for some sports.

Movement Beginning by hanging from the bar, the body is pulled up vertically. From the top position, the participant lowers their body until the arms and shoulders are fully extended. The end range of motion at the top end may be chin over bar or higher, such as chest to bar. Pull-ups are a closed-chain, compound movement involving flexion at the elbow and adduction or extension of the shoulder joint. The trapezius, infraspinatus, and brachialis muscles are most active at the beginning of the pull-up; the latissimus dorsi, teres major, and biceps brachii reach peak activity during the middle of the movement, and the triceps brachii and subscapularis experienced maximum activity at the top of the movement. There is similarity to the pull-down in terms of the muscle activation. A 2017 study found that pronated grip activated the middle trapezius more than the neutral grip, but that overall the muscle activation of different grip variants was similar. Muscle activation is significantly different depending on whether the pull-up is completed individually or in a set without resting between repetitions, which is more efficient due to muscle and tendon stretch-shortening rebound. Overhead movements such as pull-ups reduce the subacromial space and create a risk of shoulder impingement. According to one study, the pronated grip pull-up with hands at shoulder width apart led to less risk of impingement than other variations studied.

Variations Pull-ups can be done with a supinated, neutral, or pronated grip; devices allow the grip to rotate during the pull-up. The pull-up performed with a supinated grip is sometimes called a chin-up. A pull-up may be completed using different widths of hand position; studies have found that participants freely choose a grip that is between 20 and 50 percent wider than shoulder width. A grip that is too wide could increase the injury risk or reduce the number of repetitions able to be completed due to lengthening the lever arm.

Equipment

Pull-ups are commonly performed using a bar; doorway mounted bars are sold for use in in-home gyms. They can also be completed by grasping towels, rotating handles or gymnastics rings.

Use

Pull-ups are a common way to measure upper body strength, endurance, and strength-to-weight ratio. The strength to do a pull-up is correlated with job-related tasks in some careers such as firefighting, police, and military. Pull-ups are used as a conditioning activity for many sports, especially those that require pulling strength, including rock climbing, gymnastics, rope climbing, rowing, and swimming. They are also used by police and military to increase muscular strength among their members. Some organizations have allowed women to use a flexed arm hang as a substitute for a pull up in fitness tests after discovering that few female recruits could complete a pull-up. According to a 2003 study in college-age women, one third of participants were able to complete a pull-up after a twelve-week full-body strength training program.

Guinness World Records The Guinness World Record for the most consecutive pull-ups was set by Japan Coast Guard diver Kenta Adachi in 2022 with 651 pull-ups, taking 87 minutes. In 2024 he improved his record to 1224 pull-ups. The rule was that one pull-up has to be done every 15 seconds. The world record for pull-ups with no breaks is 88, held by Joonas Mäkipelto. The Guinness World Record for the maximum amount of weight added to a weighted pull-up was set by David Marchante of Spain in 2016, with 104.55 kilograms (230.5 lb). The Guinness World Record for longest dead hang on a pull-up bar by a woman over age 80 was surpassed by over a minute in 2026 when Bonnie Sumner hung for more than 3 minutes. The Guinness World Record for the most pull ups in 24 hours (male) was set by Enrique Zapata from Mexico in 2026 with 12,345 pull ups. The Guinness World Record for the most pull ups in 24 hours (female) was set by Olivia Vinson from Australia in 2025 with 7,079 pull ups.

Illustrations

Worked examples

Example 1 — a first encounter with Pull-up

Start with the simplest possible case. Write down what Pull-up claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, 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 Pull-up 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 Pull-up 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 Pull-up

In research: Pull-up appears in physics 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 Pull-up 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: Pull-up is common in secondary-school and first-year university syllabi. It links to neighbouring topics Bodyweight exercises, Sports biomechanics, so understanding it makes those chapters shorter.
In everyday life: Look for Pull-up 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.

How to study Pull-up in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Pull-up 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 Pull-up out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Pull-up in simple terms?

A pull-up is an upper-body strength exercise. The pull-up is a closed-chain movement where the body is suspended by the hands, gripping a bar or other implement at a distance typically wider than shoulder-width, and pulled up.

Why does Pull-up matter?

Because it connects several physics 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 Pull-up?

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 Pull-up.