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 Flex or FLEX may refer to: Computing * Flex (language), developed by Alan Kay * FLEX (operating system), a single-tasking operating system for the Motorola 6800 * FlexOS, an operating system developed by Digital Research * FLEX (protocol), a com ...

and the shoulders

adduct An adduct (from the Latin ''adductus'', "drawn toward" alternatively, a contraction of "addition product") is a product of a direct addition of two or more distinct molecules, resulting in a single reaction product containing all atoms of all co ...

and

extend Extension, extend or extended may refer to: Mathematics Logic or set theory * Axiom of extensionality * Extensible cardinal * Extension (model theory) * Extension (predicate logic), the set of tuples of values that satisfy the predicate * Ext ...

to bring the elbows to the torso. Pull-ups build up several muscles of the upper body, including the

latissimus dorsi The latissimus dorsi () is a large, flat muscle on the back that stretches to the sides, behind the arm, and is partly covered by the trapezius on the back near the midline. The word latissimus dorsi (plural: ''latissimi dorsorum'') comes from ...

trapezius The trapezius is a large paired trapezoid-shaped surface muscle that extends longitudinally from the occipital bone to the lower thoracic vertebrae of the spine and laterally to the spine of the scapula. It moves the scapula and supports th ...

, and

biceps brachii The biceps or biceps brachii ( la, musculus biceps brachii, "two-headed muscle of the arm") is a large muscle that lies on the front of the upper arm between the shoulder and the elbow. Both heads of the muscle arise on the scapula and join ...

. 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 shoulder joint (or glenohumeral joint from Greek ''glene'', eyeball, + -''oid'', 'form of', + Latin ''humerus'', shoulder) is structurally classified as a synovial ball-and-socket joint and functionally as a diarthrosis and multiaxial joint ...

. The

infraspinatus In human anatomy, the infraspinatus muscle is a thick triangular muscle, which occupies the chief part of the infraspinatous fossa.''Gray's Anatomy'', see infobox. As one of the four muscles of the rotator cuff, the main function of the infraspin ...

, and

brachialis The brachialis (brachialis anticus), also known as the Teichmann muscle, is a muscle in the upper arm that flexes the elbow. It lies deeper than the biceps brachii, and makes up part of the floor of the region known as the cubital fossa (elbow ...

muscles are most active at the beginning of the pull-up; the

teres major The teres major muscle is a muscle of the upper limb. It attaches to the scapula and the humerus and is one of the seven scapulohumeral muscles. It is a thick but somewhat flattened muscle. The teres major muscle (from Latin ''teres'', meaning ...

, and

reach peak activity during the middle of the movement, and the

triceps brachii The triceps, or triceps brachii (Latin for "three-headed muscle of the arm"), is a large muscle on the back of the upper limb of many vertebrates. It consists of 3 parts: the medial, lateral, and long head. It is the muscle principally respon ...

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 strech-shortening rebound. Overhead movements such as pull-ups reduce the subacrominal 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 an 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 home gyms. They can also be completed by grasping towels, rotating handles or

gymnastics rings The rings, also known as still rings (in contrast to flying rings), is an artistic gymnastics apparatus and the event that uses it. It is traditionally used only by male gymnasts, due to its extreme upper body strength requirements. Gymnasts oft ...

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 Firefighting is the act of extinguishing or preventing the spread of unwanted fires from threatening human lives and destroying property and the environment. A person who engages in firefighting is known as a firefighter. Firefighters typically ...

, police, and military. Pull-ups are used as a conditioning activity for many sports, especially those that require pulling strength, including

rock climbing Rock climbing is a sport in which participants climb up, across, or down natural rock formations. The goal is to reach the summit of a formation or the endpoint of a usually pre-defined route without falling. Rock climbing is a physically a ...

gymnastics Gymnastics is a type of sport that includes physical exercises requiring balance, strength, flexibility, agility, coordination, dedication and endurance. The movements involved in gymnastics contribute to the development of the arms, legs, s ...

rope climbing A rope is a group of yarns, plies, fibres, or strands that are twisted or braided together into a larger and stronger form. Ropes have tensile strength and so can be used for dragging and lifting. Rope is thicker and stronger than similarly c ...

rowing Rowing is the act of propelling a human-powered watercraft using the sweeping motions of oars to displace water and generate reactional propulsion. Rowing is functionally similar to paddling, but rowing requires oars to be mechanically ...

, and

swimming Swimming is the self-propulsion of a person through water, or other liquid, usually for recreation, sport, exercise, or survival. Locomotion is achieved through coordinated movement of the limbs and the body to achieve hydrodynamic thrust that r ...

. They are also used by police and military to increase muscular strength among their members. Some organizations allow 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 ''Guinness World Records'', known from its inception in 1955 until 1999 as ''The Guinness Book of Records'' and in previous United States editions as ''The Guinness Book of World Records'', is a reference book published annually, listing world ...

for the most consecutive pull-ups was set by

Japan Coast Guard The is the coast guard of Japan. The Japan Coast Guard consists of about 13,700 personnel and is responsible for the protection of the coastline of Japan under the oversight of the Ministry of Land, Infrastructure, Transport and Tourism. Th ...

diver Kenta Adachi in 2022 with 651 pull-ups, taking 87 minutes. 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 kg (230.49 lb).

Movement

Variations

Equipment

Use

Guinness World Records

References

Further reading