Crawling (human) - How To Help My Baby Learn To Crawl

- 01.17

Crawling by definition is using ones knees to propel forward. It is the first gait learned by most humans. Human crawling has similar features to crawling in other primates as well as nonprimate quadropeds, suggesting similar mechanisms.

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When crawls are used

Crawling is used mainly:

  • When a person cannot yet walk because of being an infant
  • When a person cannot walk due to disability, being wounded, sick, or drunk
  • In very low places (caves, under a table, in a mine, etc.). Sometimes underground miners need to crawl long distances during their work
  • When searching for something on the ground
  • To get down to the ground in gardening, for maintenance or other work-related purposes which require a good reach on the ground
  • For stealth (camouflage and quietness)
  • To lower the field of vision
  • As an exercise
  • As a token of submission
  • For fun or comical purposes
  • During a fire, crawling may be used because the air near the ground is easier to breathe

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In infants

Infants sometimes "crawl" with their stomachs on the ground as early as 3 months, but this crawling is infrequent with the baby remaining stationary most of the time. True crawling with the stomach off the ground and the baby frequently on the move usually develops between 7 and 11 months of age and lasts for 3 to 6 months before the child switches to walking. Even after taking their first unaided steps, most babies still crawl part of the time for 2 or 3 months. While crawling, infants gradually practice standing, at first by using people or objects for support and, later, without support. Crawling babies are notorious for getting into trouble, so parents are often advised to childproof their house before a baby reaches crawling age.

Though crawling is an important developmental milestone in children, it is not necessary for healthy development. Some babies skip crawling and go directly to walking. Others "bottom shuffle" instead of crawling (sometimes referred to as "bum-shuffling", or "scooting"). Bottom-shuffling babies sit on their bottoms and push themselves forward using their legs, and sometimes their hands, often in specially reinforced trousers. Bottom-shuffling is particularly prevalent among infants who have not been allowed to sleep on their stomachs due to concerns about Sudden Infant Death Syndrome. Babies that bottom-shuffle tend to walk later than babies that crawl.

Whether infants crawl is also culturally determined. European parents in previous centuries discouraged it as being too animal-like. They kept their children in long dresses and other clothes that made crawling difficult or impossible. Some cultures consider it to be dirty and dangerous.

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Types of crawls

Standard crawl

Crawling is a specific 4-beat gait involving the hands and knees. A typical crawl is left-hand, right-knee, right-hand, left-knee, or a hand, the diagonal knee, the other hand then its diagonal knee. This is the first gait most humans learn, and is mainly used during early childhood, or when looking for something on the floor or under low relief. It can be used to move with a lower silhouette, but there are better crawls for that purpose. This is the most natural of the crawls and is the one that requires the least effort.

Bear crawl

The bear crawl is almost identical to the standard crawl, but the feet are used instead of the knees, which creates an arched or squatted body posture. This works as a faster crawl but requires more effort to maintain.

Crab crawl

The crab crawl is an upside down bear crawl. This is the most unnatural of the crawls, requiring the most effort, and is used in crab soccer. The crab crawl starts by sitting down with the feet and hands flat on the ground, the hips are then raised off the ground and the chest faces the sky. Due to its inefficiency, it is more commonly used as a form of exercise than actual transportation. Crabwalking builds triceps endurance and arm and leg strength, and is a recommended exercise of various school athletic departments and soccer organizations (such as USA Football). Because of its unusual appearance, crabwalking has been used in several horror films to suggest the demonic possession of a character. These have included The Exorcist and The Unborn.

The crab crawl is also useful for descending steep slopes with poor traction. Its feet-first orientation ensures a low center of mass to prevent tumbling, while the inverted posture allows one to see where he or she is going.

Leopard crawl/High crawl

The leopard crawl is a military-specific crawl. There are two versions, the leopard crawl proper and a modified version for when carrying weapons in the hands. This is a two-beat gait like a trot: an arm/elbow is advanced with the diagonal knee. This is designed for the smallest silhouette possible, and the body is often nearly or actually touching the ground, and although the elbow and knee are the main focus, most of the respective limbs touch the ground.

Tiger crawl

The tiger crawl is essentially a highly accelerated combination between crawl and leopard crawl. It uses the hands and the knees/feet depending upon the situation, while maintaining a silhouette almost as small as that of the leopard crawl. This is relatively fast gait but can take large amounts of energy.



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