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An interpretive and loose dance style, the Boogaloo began as a mixture of the African American, Cuban, Latino, and Puerto Rican music and dance cultures. Blending jump blues, R&B, doo wop, son montuno, guaracha, mambo, and soul, the Bogaloo became a part of the shared taste of New York City’s culture. Although it originated in the 1950s, the Boogaloo did not become vastly popular with mainstream America until its appearance on the television show American Bandstand in the 1960s.

The music features a mid-tempo looping melody that acts as the anchoring rhythm to the dance. The footwork is similar to Pachanga, is counted over the eight beat patterns, and, similar to jive, contains many fast motions. The Latin based form is called Boogaloo, whereas the more funk-oriented version is called Electric Boogaloo.

The Electric Boogaloo is an evolved sub-genre that was started by the dance group “Electronic Boogaloo Lockers” in 1978. This group first performed on television in November of 1978 and performed the dance to a more funk-oriented music. The group, hailing from Fresno, California, consited of Tick’n Will Green, Darnel “Twist-o Don” McDowell, and Sammy “Boogaloo Sam” Solomon.

There are several common moves in the Boogaloo and Electric Boogaloo, which include body rolls, worming, puppet, leg rolls, twist-o-flex, neck-o-flex, old man, romeo twist, and the walk-out.

[youtube src="HlPLqWWOaNI"/]

Also known as 
Shing-a-ling 

Originator: 
Electronic Boogaloo Lockers (Electric Boogaloo) 

Region of origin: 
New York, NY (Boogaloo) & Fresno, CA (Electric Boogaloo) 

Popularized by: 
American Bandstand (Boogaloo), Electronic Boogaloo Lockers (Electric Boogaloo)

A type of techno dance popular in South Korea. Involves a lot of arm movement, synced with the rest of the body.

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Also known as
Bokgo Dancing 

Originator: 
Bae Seul Gi 

Region of origin: 
Korea 

Popularized by: 
Korean T.V. Show "Love Letter"

The Clown Walk, also known as the C-Walk, is a dance usually performed to hip hop music. It is a form of the gang-related dance called the Crip Walk. Inspired by the Crip Walk, the Clown Walk was specifically designed as a dance and not a gang-related movement. While the style of the Clown Walk is very fast and very flashy, it does not focus on precision or clean walking. This style allows people to move how they feel and incorporate it into their dance, much like Krumping. Another form of Clown Walking is Crown Walking, which involves more flowing movements than the typical speed and flash.

Some basic movements in the Clown Walk are the V, Shuffle, Heeltoe, X-hop, Others, Wiggle Walk, and Gangsta Skip. Many “walkers”, as the dancers are referred to, like to slide, glide, moonwalk, and add variations to their walk.

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Also known as
C-Walk 

Region of origin: 
California 

Popularized by: 
Xzibit

Crip Walk originated in the gang culture of Compton, a suburb of Los Angeles, California in the early 1970s. By the late1990s, this symbolic form of gang expression became a popular inspiration for hip-hop dancing.

Crip Walk is composed of small and nimble movements of the feet which hold a variety of purposes in the gang culture. These purposes include recognition of members by showing love and loyalty, and making a symbolic statement that a Crip Walker is a member of the Crips. A different use of Crip Walking is to insult the rival gang, the Bloods. To do this, the Crips spell out their rival's name using Crip Walk, then cross it out. Using hand gestures, also called stacking, the Crip Walkers spell out their own names, neighborhoods, and other words to communicate via the Crip Walk.

There are two basic moves to Crip Walk: the V Move and the Shuffle.

To perform the V Move:

Start with both feet flat on the ground.
Pick up your left foot's toes, and you right foot's heel, and pivot to form a V with your feet.
Now, pick up the left heel and right toes, and pivots outward, forming an upside down V with your feet.
Repeat these steps to make a V or upside-down V.

To perform the Shuffle:

Start by standing on your toes.

Jump/Slide you right foot backward and your left foot forward so that your left heel lines up with your right toes.

Jump/Slide again and alternate your feet. Again, the heel of one foot should align with the toes of the other.

NOTE: Try to keep your feet really low to the ground, so it looks like you are sliding/gliding your feet from one position to another.

[youtube src="TT16OTNPyEk"/]

Also known as 
C-Walk 

Originator: 
The Crips (LA gang)

Region of origin: 
Los Angeles, CA

The moonwalk or backslide is a dance technique that presents the illusion that the dancer is stepping forward whilst actually moving backward. The dance move gained widespread popularity after being performed by Michael Jackson on the 1983 television special Motown 25: Yesterday, Today, Forever, and has since become his signature move. The moonwalk has since become the most well known dance move in the world. As Stern and Stern wrote in their 1992 Encyclopedia of Pop Culture, Michael Jackson's signature moonwalk "became the single best-known bit of celebrity body language since the four Beatles."

The move commonly referred to as the moonwalk today was originally known as the backslide or "walking on your toes". The moonwalk was the name of another dance now known as the circle moonwalk. This step has two distinct types. One is called the turnwalk. This is usually performed very quickly giving the impression that the dancer is walking quickly in a circle. The other circular moonwalk type is known as the 360 or Four-Corner Moonwalk and is often done much slower in a floating style. This involves sliding a heel back (usually the left heel), pivoting both heels to change direction, and then pivoting the non-sliding heel 45 degrees. Other moonwalk variants include the "sidewalk" or "side glide," in which the dancer appears to glide sideways, and the "spotwalk," in which the dancer appears to moonwalk in place. In numerous interviews, Jackson has attributed the dance that he now is credited for, to ordinary children, whom he saw doing a variation of what we now call the moonwalk and he took it that step further to first perform it on Motown 25 where he wowed fans and is now a feature of perhaps his most popular single Billie Jean.

Backslides have been performed on numerous earlier occasions. The moonwalk was recorded as early as 1943 in a performance by tap dancer Bill Bailey. Prior to Jackson, Jeffrey Daniel was "moonwalking" in a performance of Shalamar's "A Night To Remember" on Top of the Pops in 1982. A member of the Electric Boogaloos performance group, Timothy 'Popin Pete' Solomon, also performed a "moonwalking" move in the Talking Heads video 'Crosseyed And Painless' which aired around 1981. Marcel Marceau's famous Walking Against the Wind routine was the original influence that Michael drew from.

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Also known as 
Backslide 

Popularized by: 
Michael Jackson

Human anatomy is the branch of science concerned with the structure and function of the body.


The human body is the dancer's instrument of expression. 
Understanding how the body works can help a dancer stay in shape,
improve performance, increase confidence and add longevity to his or
her performing career. It can also help a dancer avoid injury. If an
injury does occur, knowledge of human anatomy can contribute to a safe
process of healing and recovery.

I. General Anatomical Terms

Anatomical position: Descriptions
in human anatomy are expressed in relation to anatomical position.
These positions describe where different body parts are found or what
the direction of a movement is relative to the midline of the body or
to another body part. Anatomical positions are referred to according to
their orientation:
  1. Superior - toward the head
  2. Inferior - toward the feet
  3. Anterior - toward the front of the body
  4. Posterior - toward the back of the body
  5. Medial - toward the midline of the body
  6. Lateral - away from the midline of the body

Body cavity: Houses the internal organs. There are three main body cavities:
  1. The thoracic cavity is the space above the diaphragm. It encloses the heart and lungs within the ribcage, sternum (breastbone) and twelve thoracic vertebrae.
  2. The abdominal cavity, which houses the abdominal viscera, begins below the diaphragm and ends at the top of the pelvis, at about waist level.
  3. The pelvic cavity extends from the end of the abdominal cavity to the pelvic floor.

Organ: A group of tissues that perform a particular function. For example, the heart, lungs, liver and kidney are all organs.


Pelvic floor: A group of muscles that reach from the pubic bone back to the sacrum. One function of the pelvic floor is to support the internal organs.


Tissue:
A group or collection of similar cells and their intercellular
substance that act together to perform a particular function. The
primary tissues are epithelial, connective, skeletal, muscular,
glandular and nervous.

Viscera: Any internal organ.

II. The Systems of the Body

System:
Organs that work together to perform major body functions like
breathing, digesting, moving and reacting to external stimuli. Some
examples of systems include:

  1. Cardiovascular: composed of the heart, blood and blood vessels (arteries, veins and capillaries)
  2. Digestive: composed of the oral cavity, pharynx, stomach and intestines
  3. Endocrine: involving glands that secrete hormones
  4. Integumentary: composed of skin, hair and nails
  5. Muscular: composed of skeletal, smooth and cardiac muscles
  6. Nervous: composed of the brain, spinal cord, peripheral nerves and sensory organs
  7. Respiratory: composed of airways and lungs
  8. Skeletal: composed of bones and cartilage
All systems are important for normal body functioning but, for a dancer,
sound knowledge of the following systems is particularly helpful:
  1. The muscular and skeletal systems are often grouped together and called the musculoskeletal system. This system's primary function is movement.
  2. The nervous system is comprised of three main parts:
    1. The central nervous system involves the brain and the spinal cord. It is the control centre of the nervous system.
    2. The peripheral nervous system consists
      of any nervous tissue that is not encased in the skull or vertebral
      column. It includes the peripheral nerves and the sensory organs they
      stimulate in different parts of the body. The peripheral nervous system
      is important in balance.
    3. The autonomic nervous system is chiefly concerned with the regulation of visceral activity. It is involuntary.

III. Bones

Bon (osseus tissue): A specialized form of dense connective tissue
consisting of bone cells (osteocytes) embedded in a matrix of calcified
intercellular substance. The main functions of bone are to:
  1. Protect vital structures
  2. Support the body
  3. Provide a basis for movement through muscle and tendon attachments
  4. Provide attachment points for ligaments
  5. Store important mineral salts such as calcium
  6. Produce red blood cells which transport oxygen and carbon dioxide to and from tissues
Bones give shape and structure to the body. They provide points of attachment
for muscles and become the levers making movement possible. Bones are
classified as follows:
  1. Flat, e.g. scapula (shoulder blade) and sternum (breast bone)
  2. Irregular, e.g. talus (ankle bone) and vertebrae (spinal bones)
  3. Long, e.g. femur (thighbone) and ulna (one of the forearm bones)
  4. Short, e.g. navicular (a small bone in the arch of the foot)
  5. Sesamoid, e.g. patella (knee cap, where the bone is free but a tendon runs through it)
Trochanter: A bony protuberance by which muscles are attached between the pelvis and the upper part of the thighbone (femur).

IV. Muscles and Related Terms

Core: The dancer's centre, or core, involves a balance of stability and strength between the abdominal muscles (transversus abdominis, rectus abdominis, and internal and external obliques), the back muscles and the pelvic floor muscles. The diaphragm is also an important part of the dancer's core. A strong core is very important in maintaining good posture and control of limb movement.

Diaphragm:
The diaphragm is the most important breathing muscle. It spans from
front to back and side to side at the level of the lower ribs. After
exhaling, the diaphragm is shaped like a dome. The lungs sit on top of
the dome and when they fill with air the dome flattens. This flattening
pushes the ribs up and out, and also pushes down on the abdominal
contents, which is why the belly gets pushed out when a deep,
diaphragmatic breath is taken.

Hip joint muscles:
  1. The adductors 
    (e.g. adductor longus, adductor brevis and adductor magnus) are the
    muscles running along the inside of the leg from the groin area.
    Flexibility in the adductors makes it possible to do side splits.
  2. The lateral rotators 
    (e.g. piriformis and posterior fibres of gluteus medius) are found deep
    in the buttock region. They are often very well developed in the ballet
    dancer who performs many movements in the "turned-out" position.
  3. The medial rotators 
    (e.g. gluteus minimus and anterior fibres of gluteus medius) have the
    dual function of internal rotation (opposite to the turned-out
    position) and abduction (moving the leg away from midline). They are
    the antagonistic, or opposite, muscle group to the lateral rotators.
  4. The extensors 
    (e.g. gluteus maximus and the hamstrings) are used in moving the leg
    backwards, in jumping and in straightening from a crouched position.
  5. The flexors (e.g. iliopsoas and rectus femoris) bring the leg forward or the knee toward the chest.

Iliotibial band: A fibrous muscle structure running from the outside of the hip joint to
the lower leg just below the knee joint. It is a continuation of the
gluteus maximus muscle, which is the largest muscle in the buttock.


Hamstring: A group of muscles found along the back of the leg running from the
pelvis to just below the knee that effect hip and knee movements.   The
semitendinosus and the semimembranosus are found on the medial side and
the biceps femoris is found on the lateral side.

Muscle: Composed of contractile tissue with elastic properties. The special
characteristics of muscle include shortening and contracting, and also
stretching. In general, an overstretched or lengthened muscle is weak.
There are three kinds of muscle:
  1. Smooth muscle acts involuntarily and is found principally in the internal organs.
  2. Cardiac muscle also acts involuntarily and is found around the heart.
  3. Skeletal muscle is
    striated because of different groups of fibres bundled together. It is
    usually found in the limbs. Skeletal muscles, which produce voluntary
    movement, are the ones a dancer uses to gain and maintain a certain posture, to start and stop limb movement, and to stretch or strengthen.
Posture: Involves maintaining a certain alignment of the body. A dancer's
ability to achieve certain postures requires muscle strength and
flexibility of the musculoskeletal system, as well as balance and body awareness involving the nervous system.

Respiration (breathing):
A means of revitalizing tissues. When a dancer takes in air, he or she
is taking in oxygen, or fuel, bringing energy to the muscles and vital
organs. Without oxygen it would be impossible to move and control the
body. Breathing also helps the dancer gain awareness of physical states
like muscle tension and relaxation.

Rotator cuff:
A group of four muscles extending from the scapula (shoulder blade) to
the head of the humerus (shoulder). These muscles are very important
for stability and mobility of the shoulder throughout all movements.
The four individual muscles of the rotator cuff are the supraspinatus,
infraspinatus, teres minor and subscapularis.

Tendon:
The longer fibrous end of a muscle that serves to attach it to the
periosteum (outer layer of bone). Tendons are strong, but inelastic.
They are slow to heal if injured.
A well-known tendon is the Achilles tendon, which attaches the calf
group of muscles (the medial and lateral gastrocnemius and soleus
muscles) to the heel bone (the calcaneum).

V. Joints and Related Structures

Bursa: A padlike sac usually found near a joint. It is lined with a synovial membrane and contains synovial fluid
that reduces friction between tendon and bone, tendon and ligament, or
other structures where friction is likely to occur. [See: Bursitis ]

Cartilage:
Dense, bluish-white or grey connective tissue, like what is seen at the
end of a chicken bone. There are different types of cartilage,
including:
  1. Articular, a thin layer of smooth, elastic cartilage located on the joint surfaces of bone. It protects the end of the joint.
  2. Semilunar, found
    in-between the joint like the middle of a sandwich. Two good examples
    are the intervertebral discs, and the medial and lateral menisci in the
    knee joint.
  3. Cricoid, the lowermost cartilage of the larynx (throat).
  4. Costal, connects the ends of the first ten ribs (true ribs) with the sternum (breast bone).
Joint (articulation): The area where two or more bones are joined together along with their associated structures, such as ligaments. Joints are classified into three types according to the material uniting the articulating bones:
  1. Fibrous joints: united by fibrous tissue (e.g. sutures of the skull bones).
  2. Cartilaginous joints: united by cartilage (e.g. vertebrae and their intervertebral discs) or a combination of cartilage and fibrous tissue (e.g. sacroiliac joint).
  3. Synovial joints: united by cartilage
    with a synovial membrane enclosed in the joint cavity. These are the
    most common joints and are the ones that provide free movement between
    the bones they join. They are typical of nearly all the joints of the limbs. Synovial joints are named after the synovial fluid they contain. This lubricating substance allows the dancer's joints to move freely and smoothly.
Joint axes: Joints may move in one (uniaxial)

or several directions. A hinge-type joint such as the elbow or the knee is a bi-axial joint and permits movement in two directions: flexion or extension only. A ball-and-socket-type joint such as the hip or shoulder is a multi-axial joint as it allows movement in several directions.

Joint capsule: A sleeve that is over the joint. Made of fibrous tissue, it helps keep everything in the joint together, such as the cartilagesynovial fluid and some ligaments.

Ligament:
A band of strong, fibrous connective tissue that connects one bone to
another. Ligaments either allow or prevent a specific movement between
two bones. They are passive structures so we do not have voluntary
control over them. Examples of ligaments are the ACL (anterior cruciate
ligament) and PCL (posterior cruciate ligament). These two ligaments
are found in the knee and are called "cruciate ligaments" because they
cross.

VI. Common Dance-Related Injuries

Bursitis: An acute, painful inflammation of the bursa usually caused by repetitive friction from a tight muscle or a poorly executed movement. Hip bursitis occurs when the tendon of the iliotibial band rubs the greater trochanter of the femur (thighbone).

Joint sprain: A tear of the ligament classified from a Grade 1 (minor) to a Grade 3 (total tear). Joint sprain occurs when a ligament is overstretched or when a joint is bent
in the wrong direction. A classic example is rolling over on the ankle.
It is not uncommon for more than one ligament to be injured at a time.

Muscle strain: A muscle tear that can range from a Grade 1 (minor) to a Grade 3 (total tear). Muscle strain often occurs from quick movements requiring a sudden,
hard muscle contraction, especially when a dancer is not completely
warmed up.

Shin splints:
Pain in the front of the lower leg. Their cause is unclear, but they
tend to develop after prolonged and/or repetitive use of the legs in
weight-bearing activities like running and jumping.

Stress fractures: An incomplete break in the bone.
In dance they are often caused by repetitive landings from jumps. On an
X-ray they appear as a thin line through the bone. In order to heal a
stress fracture it is necessary to rest and reduce impact on the
fractured bone, which usually means taking a break from dancing for a
period of time. Shin splints are one result of stress fractures.

VII. Anatomical Tidbits

The arch of the foot is formed by: the structure of the bones,
the navicular being the high point of the arch; the plantar fascia, a
fibrous band extending from the heel to the ball of the foot; ligaments, the main one being the spring ligament acting as a supporting sling to the navicular bone; and muscles both starting and ending in the foot, as well as muscles originating
from the lower leg area. The primary role of the long arch of the foot
is to absorb shock.

The arm is divided into two parts: the upper arm and the forearm. The long bone of the upper arm is called the humerus and extends from the ball-and-socket multi-axial-type shoulder joint to the hinge-type elbow joint. The forearm consists of two bones, the ulna and the radius, which extend from the elbow to the wrist. The main muscles in the upper arm are the deltoids, triceps and biceps. The muscles of the forearm mostly
start at the elbow and continue into the hand controlling movement of
the wrist and hand.

Arteries
are blood vessels containing oxygenated blood that is pumped from the
heart to other organs of the body. After the organs have taken the
oxygen out of the blood for fuel, another set of blood vessels called veins carry the de-oxygenated blood back to the heart, thereby completing the circuit.

Normal body temperature for a healthy adult at rest is 37 degrees Celsius.

The scapula or shoulder blade acts like a pulley and has muscle attachments to the head, neck, spinal column, sacrum and upper arm.

The spine is made up of seven cervical, twelve thoracic and five lumbar vertebrae; the sacrum (five fused vertebrae); and the coccyx (four fused vertebrae), which is the remnant of the human tail. The spinal cord
running down the centre of the vertebrae is a continuation of the brain
and ends at L1-L2 (the 1st and 2nd lumbar vertebrae). The rest of the
spinal column after L2 is filled with a bunch of nerves that look like
a horse's tail and is called the cauda equina.


The human body has different structural levels of organization. These
levels start with atoms, molecules and compounds, increasing in size
and complexity to cells, tissues, organs and, finally, systems.

VIII. References

Calais-Germain, Blandine. Anatomy of Movement. Seattle: Eastland Press, 1993
Calais-Germain, Blandine and Anderson, Stephen. Anatomy of Movement:
Exercises, Seattle: Eastland Press, 1996
Carola, R., Harley, J.P., and Noback, C. Human Anatomy. New York: McGraw
Hill, 1992
Kapit, Wynn and Elson, Lawrence M. The Anatomy Coloring Book, 3rd edition.
Benjamin Cummings, 2001.
Lesson Planning: The Human Body, Online Resources
Human Anatomy Online

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