A weight transfer or weight change is dancer's movement so that their weight is moved from one supporting foot (or supporting limb/body part) to another one fully or partially.
Walking, for example, involves shifting of the body's weight from one foot to another, so freeing the first so that it may be lifted and moved forward. This process is a 'natural' movement in humans and other animals, but is in effect a complex process of biomechanics.
In the full weight transfer, the center of gravity becomes vertically projected onto another body part (e.g., foot) freeing the first one so that it may be freely lifted or moved. (In fact, lifting the foot off the ground is a simple test often suggested for the beginners to ensure that they have completed the practiced dance move and their weight is on the proper foot.)
In partial weight transfer the center of gravity is shifted to project between the old and new support body part. In some dance moves, such as ball change, the force produced by pushing with the new supporting foot at the moment of the partial weight transfer makes it possible to lift the previous support foot for a short time, followed by the drop back onto the first supporting foot subject to the gravity force.
Partner dancing
Control of weight transfers is an important part of the partner dance technique. In general, important components of foot action during a dance step are foot movement, foot placement, and weight transfer.
In some types of partner dance, lead and follow are designations for the two dancers' roles in a dance pairing. The leader is responsible for guiding the couple and initiating transitions to different dance steps and, in improvised dances, for choosing the dance steps to perform. The leader communicates choices to the follower, and directs the follower by means of subtle physical and visual signals, thereby allowing the pair to be smoothly coordinated.
A pulley is a wheel on an axle or shaft that is designed to support movement and change of direction of a taut cable or belt, or transfer of power between the shaft and cable or belt. In the case of a pulley supported by a frame or shell that does not transfer power to a shaft, but is used to guide the cable or exert a force, the supporting shell is called a block, and the pulley may be called a sheave.
Spins are an element in figure skating in which the skater rotates, centered on a single point on the ice, while holding one or more body positions. They are performed by all disciplines of the sport, single skating, pair skating, and ice dance, and are a required element in most figure skating competitions. As The New York Times says, "While jumps look like sport, spins look more like art. While jumps provide the suspense, spins provide the scenery, but there is so much more to the scenery than most viewers have time or means to grasp". According to world champion and figure skating commentator Scott Hamilton, spins are often used "as breathing points or transitions to bigger things"
Weight training is a common type of strength training for developing the strength and size of skeletal muscles. It utilizes the force of gravity in the form of weighted bars, dumbbells or weight stacks in order to oppose the force generated by muscle through concentric or eccentric contraction. Weight training uses a variety of specialized equipment to target specific muscle groups and types of movement.
Dance moves or dance steps are usually isolated, defined, and organized so that beginning dancers can learn and use them independently of each other. However, more complex movements are influenced by musicality and lyrical relevance to express emotions or refer to a message. Dance moves tend to emphasize the concepts of lead and follow and connection.
This is a list of dance terms that are not names of dances or types of dances. See List of dances and List of dance style categories for those.
Because ballet became formalized in France, a significant part of ballet terminology is in the French language.
Automobile handling and vehicle handling are descriptions of the way a wheeled vehicle responds and reacts to the inputs of a driver, as well as how it moves along a track or road. It is commonly judged by how a vehicle performs particularly during cornering, acceleration, and braking as well as on the vehicle's directional stability when moving in steady state condition.
The snatch is the first of two lifts contested in the sport of weightlifting followed by the clean and jerk. The objective of the snatch is to lift the barbell from the ground to overhead in one continuous motion. There are four main styles of snatch used: squat snatch, split snatch, power snatch, and muscle snatch. The squat snatch and split snatch are the most common styles used in competition while power snatch and muscle snatch are mostly used for training purposes.
In thermodynamics, work performed by a system is energy transferred by the system to its surroundings, by a mechanism through which the system can spontaneously exert macroscopic forces on its surroundings. In the surroundings, through suitable passive linkages, the work can lift a weight, for example. Energy can also transfer from the surroundings to the system; in a sign convention used in physics, such work has a negative magnitude.
In common parlance, the core of the body is broadly considered to be the torso. Functional movements are highly dependent on this part of the body, and lack of core muscular development can result in a predisposition to injury. The major muscles of the core reside in the area of the belly and the mid and lower back, and peripherally include the hips, the shoulders and the neck.
Gait training or gait rehabilitation is the act of learning how to walk, either as a child, or, more frequently, after sustaining an injury or disability. Normal human gait is a complex process, which happens due to co-ordinated movements of the whole of the body, requiring the whole of Central Nervous System - the brain and spinal cord, to function properly. Any disease process affecting the brain, spinal cord, peripheral nerves emerging from them supplying the muscles, or the muscles itself can cause deviations of gait. The process of relearning how to walk is generally facilitated by Physiatrists or Rehabilitation medicine (PM&R) consultants, physical therapists or physiotherapists, along with occupational therapists and other allied specialists. The most common cause for gait impairment is due to an injury of one or both legs. Gait training is not simply re-educating a patient on how to walk, but also includes an initial assessment of their gait cycle - Gait analysis, creation of a plan to address the problem, as well as teaching the patient on how to walk on different surfaces. Assistive devices and splints (orthosis) are often used in gait training, especially with those who have had surgery or an injury on their legs, but also with those who have balance or strength impairments as well.
A balanced-arm lamp, sometimes called a floating arm lamp, is a lamp with an adjustable folding arm which is constructed so that the force due to gravity is always counteracted by springs, regardless of the position of the arms of the lamp. Many lamp brands as well as other devices, such as drawing boards, use this principle.
Weightlessness is the complete or near-complete absence of the sensation of weight. This is also termed zero-G, although the more correct term is "zero G-force". It occurs in the absence of any contact forces upon objects including the human body.
The leg raise is a strength training exercise which targets the iliopsoas. Because the abdominal muscles are used isometrically to stabilize the body during the motion, leg raises are also often used to strengthen the rectus abdominis muscle and the internal and external oblique muscles.
Stance is the position an American football player adopts when a play begins. There are three common stances used by linemen: two-point, three-point, and four-point. The stance names reference the number of points where a player's body is touching the ground while down in the stance. Each technique has its own strengths and weaknesses; therefore, each one is used accordingly in different situations. Furthermore, stances are taught and used differently depending on the level of competition.
Power training typically involves exercises which apply the maximum amount of force as fast as possible; on the basis that strength + speed = power. Jumping with weights or throwing weights are two examples of power training exercises. Regular weight training exercises such as the clean and jerk and power clean may also be considered as being power training exercises due to the explosive speed required to complete the lifts. Power training may also involve contrasting exercises such as heavy lifts and plyometrics, known as complex training, in an attempt to combine the maximal lifting exertions with dynamic movements. This combination of a high strength exercise with a high speed exercise may lead to an increased ability to apply power. Power training frequently specifically utilises two physiological processes which increase in conjunction with one another during exercise. These are deep breathing, which results in increased intra-abdominal pressure; and post-activation potentation, which is the enhanced activation of the nervous system and increased muscle fibre recruitment. Power training programmes may be shaped to increase the trainee's ability to apply power in general, to meet sports specific criteria, or both.
Ice dance, a discipline of figure skating, has required elements that make up a well-balanced skating program and must be performed during competitions. They include: the dance lift, the dance spin, the step sequence, twizzles, and choreographic elements. The elements must be performed in specific ways, as described by published communications by the International Skating Union (ISU), unless otherwise specified. Choreographic elements are judged differently; they are considered complete if the minimum requirements defining the element are met.
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