Carrying on the head is a common practice in many parts of the world as an alternative to carrying a burden on the back, shoulders and so on. People have carried burdens balanced on top of the head since ancient times, usually to do daily work, but sometimes in religious ceremonies or as a feat of skill, such as in certain dances.
Carrying on the head is common in many parts of the developing world, as only a simple length of cloth shaped into a ring or ball is needed to carry loads approaching the person's own weight. The practice is efficient, in a place or at a time when there are no vehicles or beasts of burden available for transporting the objects. Today, women and men carry burdens on their heads where there is no less expensive, or more efficient, way of transporting workloads. In India, women carry baskets of bricks to workmen on construction sites. [1] It is also used by the lowest caste to carry away human waste scooped out of pit latrines, the practice of manual scavenging. [2]
It is also wide-spread in Africa. Women in particular may have practical reasons for carrying on the head. For many African women it is "well-suited to the rough, rural terrain and the particular objects they carry—like buckets of water and bundles of firewood". The practice is usually not abandoned after migrating to urban areas where their daily routines, and socially accepted practices, are different. In Ghana, affluent residents of the southern cities employ young women who migrate from the poorer northern region to work as "head porters", called kayayei , for $2 a day. [3] In East Africa, Luo women may carry loads of up to 70% of their own body weight balanced on top of their heads. Women of the Kikuyu tribe carry similar heavy loads, but using a leather strap wrapped around their forehead and the load to secure it while it is carried. (see tumpline) This results in a permanent groove in the forehead of the women. However, there is no evidence of other harmful effects on the health of women who carry heavy loads on top of their heads. Researchers speculate that training from a young age may explain this. Up to 20% of the person's body weight can be carried with no extra exertion of energy. [4] Other researchers have shown that African and European women carrying 70% of their body weight in controlled studies used more oxygen while head-carrying, in contrast to carrying a load on their backs. The research did not support the notion that head-loading is less exerting than carrying on the back, "although there is some evidence of energy saving mechanisms for back-loading at low speed/load combinations". [5]
African-American women continued the practice during the 19th century, which they learned from their elders who had been enslaved from Africa. One observer during the American Civil War noted the impressive sense of balance and dexterity that the practice gave women in South Carolina: "I have seen a woman, with a brimming water-pail balanced on her head, or perhaps a cup, saucer, and spoon, stop suddenly, turn round, stoop to pick up a missile, rise again, fling it, light a pipe, and go through many revolutions with either hand or both, without spilling a drop". [6] Until the turn of the 20th century, African-American women in the Southern states continued carrying baskets and bundles of folded clothes on top of their heads, when they found work as washerwomen, doing laundry for white employers. This practice ended when the automobile became common in affluent communities, and employers began delivering the clothing to the homes of the washerwomen, rather than the workers coming to the employers' homes. [7]
Head-carrying was used in London's Covent Garden market in the late 19th century, with porters competing to carry up to 15 stacked baskets on their head. [8] In describing "the most cosmopolitan fruit market in the world" just before the Great Depression in the late 1920s, the United States department of Agriculture said the porters carried produce on their heads, backs, or in barrows. [9] Every day loads continued to be transported on the head into the 1950s, as shown in the documentary film Every Day Except Christmas .
There are several traditional dances of West African cultures that include balancing an object on the head as a skillful feat. Ritual dancing among worshippers of the thunder deity, Shango, sometimes balance a container of fire on their heads while dancing. The Egbado Yoruba have dances that include balancing "delicate terracotta figures" on the head while the arms and torso are moving. [10] This tradition continued among Africans taken to America during the Atlantic slave trade. African-Americans in the 19th century had a popular type of dance competition called "set the floor" ("set de flo'"), during which individual dancers would take turns dancing. Competing dancers would try to perform complicated steps given to them by a caller (usually a fiddler), without stepping outside the bounds of a circle drawn on the ground. To add to the challenge, some dancers would compete while balancing a glass full of water on top of their heads, trying not to spill the water while they danced. [10]
During the Victorian era, when finishing schools for young women were at their peak and manners and comportment were more rigid, young women were sometimes instructed to improve their posture by balancing books or a teacup and saucer on their heads while walking and getting up or down from a chair. They were told to model themselves after "the Egyptian water-carrier, with the jug of water poised so prettily on her head, and her figure so straight and beautiful". [11]
A prospective case-control study conducted in 2020 showed that "carrying a load on the head leads to accelerated degenerative changes, which involve the upper cervical spine more than the lower cervical spine and predisposes it to injury at a lower threshold. Thus, alternative methods of carrying loads should be proposed." [12]
In anatomy, the atlas (C1) is the most superior (first) cervical vertebra of the spine and is located in the neck.
Portage or portaging is the practice of carrying water craft or cargo over land, either around an obstacle in a river, or between two bodies of water. A path where items are regularly carried between bodies of water is also called a portage. The term comes from French, where porter means "to carry", as in "portable". In Canada, the term "carrying-place" was sometimes used.
A porter, also called a bearer, is a person who carries objects or cargo for others. The range of services conducted by porters is extensive, from shuttling luggage aboard a train to bearing heavy burdens at altitude in inclement weather on multi-month mountaineering expeditions. They can carry items on their backs (backpack) or on their heads. The word "porter" derives from the Latin portare.
A backpack—also called knapsack, schoolbag, rucksack, pack, booksack, bookbag, haversack or backsack—is, in its simplest frameless form, a fabric sack carried on one's back and secured with two straps that go over the shoulders; but it can have an external or internal frame, and there are bodypacks.
A pannier is a basket, bag, box, or similar container, carried in pairs either slung over the back of a beast of burden, or attached to the sides of a bicycle or motorcycle. The term derives from a Middle English borrowing of the Old French panier, meaning 'bread basket'.
A pack animal, also known as a sumpter animal or beast of burden, is a working animal used to transport goods or materials by carrying them, usually on its back.
Engine balance refers to how the inertial forces produced by moving parts in an internal combustion engine or steam engine are neutralised with counterweights and balance shafts, to prevent unpleasant and potentially damaging vibration. The strongest inertial forces occur at crankshaft speed and balance is mandatory, while forces at twice crankshaft speed can become significant in some cases.
The litter is a class of wheelless vehicles, a type of human-powered transport, for the transport of people. Smaller litters may take the form of open chairs or beds carried by two or more carriers, some being enclosed for protection from the elements. Larger litters, for example those of the Chinese emperors, may resemble small rooms upon a platform borne upon the shoulders of a dozen or more people. To most efficiently carry a litter, porters either place the carrying poles directly upon their shoulders or use a yoke to transfer the load from the carrying poles to the shoulders.
A Duluth pack, is a traditional portage pack used in canoe travel, particularly in the Boundary Waters region of northern Minnesota and the Quetico Provincial Park of Ontario. It is a specialized type of backpack that is designed to fit in the bottom of canoes. Originally known as the "Poirier pack" or "Poirier pack-sack", the pack style later became known as the "Duluth pack", as its original, eponymous manufacturing company is located in Duluth, Minnesota.
A tumpline is a strap attached at both ends to a sack, backpack, or other luggage and used to carry the object by placing the strap over the top of the head. This utilizes the spine rather than the shoulders as standard backpack straps do. Tumplines are not intended to be worn over the forehead, but rather over the top of the head just back from the hairline, pulling straight down in alignment with the spine. The bearer then leans forward, allowing the back to help support the load.
Kavadi Aattam is a ceremonial sacrifice and offering practiced by devotees during the worship of Murugan, the Hindu god of war. It is a central part of the festival of Thaipusam and emphasizes debt bondage. The Kavadi ("burden") itself is a physical burden, the bearing of which is used by the devotee to implore Murugan for assistance, usually on behalf of a loved one who is in need of healing, or as a means of balancing a spiritual debt. Devotees process and dance along a pilgrimage route while bearing these burdens.
Material handling equipment (MHE) is mechanical equipment used for the movement, storage, control, and protection of materials, goods and products throughout the process of manufacturing, distribution, consumption, and disposal. The different types of equipment can be classified into four major categories: transport equipment, positioning equipment, unit load formation equipment, and storage equipment.
The inverted row is an exercise in calisthenics. It primarily works the muscles of the upper back—the trapezius and latissimus dorsi—as well as the biceps as a secondary muscle group. The supine row is normally carried out in three to five sets, but repetitions depend on the type of training a lifter is using to make their required gains. This exercise is lighter on the joints compared to weighted rows. The exercise can also be performed with mixed, underhand, or overhand grips with either wide or narrow hand placement. The exercise is also known under various names such as supine row, bodyweight row, Australian pull up or "horizontal pull-up".
Kayayei or Kaya Yei is a Ghanaian term for a female porter or bearer. Many of these women have migrated from a rural community to any of Ghana's urban cities in search of work. They generally carry their burdens on their heads.
A carrying pole, also called a shoulder pole or a milkmaid's yoke, is a yoke of wood or bamboo, used by people to carry a load. This piece of equipment is used in one of two basic ways:
A catastrophic injury is a severe injury to the spine, spinal cord, or brain. It may also include skull or spinal fractures. This is a subset of the definition for the legal term catastrophic injury, which is based on the definition used by the American Medical Association.
Spinal precautions, also known as spinal immobilization and spinal motion restriction, are efforts to prevent movement of the bones of the spine in those with a risk of a spine injury. This is done as an effort to prevent injury to the spinal cord in unstable spinal fractures. About 0.5-3% of people with blunt trauma will have a spine injury, with 42-50% of injuries due to motor vehicle accidents, 27-43% from falls or work injuries, and the rest due to sports injuries (9%) or assault (11%). The majority of spinal cord injuries are to the cervical spine, followed by the thoracic and lumbar spine. Cervical spinal cord injuries can result in tetraplegia or paraplegia, depending on severity. Of spine injuries, only 0.01% are unstable and require intervention.
Forward head posture (FHP) is an excessively kyphotic (hunched) thoracic spine. It is clinically recognized as a form of repetitive strain injury. The posture can occur in dentists, surgeons, and hairdressers, or people who spend time on electronic devices. It is one of the most common postural issues. There is a correlation between forward head posture and neck pain in adults, but not adolescents.
A canoe pack, also known as a portage pack, is a specialized type of backpack used primarily where travel is largely by water punctuated by portages where the gear needs to be carried over land.
Axial loading is defined as applying a force on a structure directly along a given axis of said structure. In the medical field, the term refers to the application of weight or force along the course of the long axis of the body. The application of an axial load on the human spine can result in vertebral compression fractures. Axial loading takes place during the practice of head-carrying, an activity which a prospective case–control study in 2020 shows leads to "accelerated degenerative changes, which involve the upper cervical spine more than the lower cervical spine and predisposes it to injury at a lower threshold."
{{cite news}}: CS1 maint: multiple names: authors list (link)