Impulsion

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Impulsion can only occur if the horse is coming properly up through the back and hindquarters, as seen here. Wellenbewegung-pferd.jpg
Impulsion can only occur if the horse is coming properly up through the back and hindquarters, as seen here.

Impulsion is the movement of a horse when it is going forward with controlled power. Related to the concept of collection, impulsion helps a horse effectively use the power in its hindquarters. To achieve impulsion, a horse is not using speed, but muscular control; the horse exhibits a relaxed spinal column, which allows its hindquarters to come well under its body and "engage" so that they can be used in the most effective manner to move the horse forward at any speed.

Contents

The concept and term was first written about by practitioners of dressage, but an ability to move with impulsion is a desired goal in most other equestrian disciplines. Impulsion occurs when a horse is under human control and is one of the desired goals in horse training, but it may sometimes be exhibited by a horse in a free and natural state. Impulsion allows any horse gait to be more elastic and light, and also provides the animal with the power needed to perform complex movements, including the piaffe and the airs above the ground. Within the dressage world, there is an unresolved debate whether impulsion can only occur in gaits which have a period of suspension, the trot and canter, or if it occurs at any gait, including the walk and the ambling gaits.

Definitions

There are competing definitions of impulsion. The 2007 USDF rule book defines it as "...Thrust. Releasing of the energy stored by engagement. The energy is transmitted through a back that is free from negative tension and is manifested in the horse's elastic, whole-body movement. [1] The classical dressage trainer Nuno Oliveira described impulsion as, "...a mental and physical state of the horse to obey the rider's demands as fast as possible, to move forward, and to maintain his forward impulsion without support from the aids..." and ""Impulsion means to maintain the energy within the cadence." [2] Another definition is that "[a] horse is said to have impulsion when the energy created by the hind legs is being transmitted into the gait and into every aspect of the forward movement. A horse can be said to be working with impulsion when it pushes off energetically from the ground and swings its feet well forward." [3] The USEF states that impulsion is "the transmission of an eager and energetic, yet controlled propulsive energy generated from the hindquarters into the athletic movement of the horse. Its ultimate expression can be shown only through the horse’s soft and swinging back to be guided by a gentle contact with the rider’s hand." [4]

In competitive dressage circles, impulsion is defined by the German Training Scale, which states that impulsion is only possible in gaits having a moment of suspension, such as the trot and canter, but not the walk. [3] This is the current position of the USDF. Others differ, however. Oliveira described impulsion as necessary at all paces: "If your horse goes from walk to trot without changing the head and neck position, the walk had good impulsion." [2] Outside the world of competitive dressage, impulsion is considered necessary at all gaits, encouraged in gaited horses, [5] and in horses used for western riding. [6] Impulsion at the walk is encouraged and judged in many lower level dressage and combined driving competitions that do not necessarily follow the current trends in international judging. [7]

Purpose and requirements

Impulsion is very important in all equestrian disciplines, because good impulsion allows the horse to effectively utilize the power in its hindquarters.

Impulsion is particularly important in dressage. It not only makes the horse's gait more elastic, light, and expressive, but provides the animal with the power needed to perform the required movements. This is especially true for those requiring collection, such as passage, piaffe, pirouette, tempi changes. In jumping poor impulsion is often linked to horses failing to clear obstacles

Good riding is needed to create impulsion in any horse, although some horses may be built in such a way that they can more naturally create impulsion (such as those with an "uphill" build). The horse must be forward, yet relaxed, and coming correctly "on the bit" by coming up through the back. Additionally, a horse must be straight, with "throughness." The rider should use correct driving aids, and contain the energy created by the engaged hind legs. Ideally, this is accomplished through persuasion of the horse, not bullying. [8]

Impulsion occurs in all gaits: the walk, the trot, and the canter and even the ambling gaits of gaited horses. Because the walk has no moment of suspension, it is a difficult gait to perform with impulsion. Impulsion at various gaits may not always appear the same. In the walk, it is seen when the hindquarters are engaged and the gait is "purposeful yet relaxed." [6] The USEF describes impulsion at the piaffe as follows: "The piaffe must always be animated by a lively impulsion and characterized by a perfect balance. While giving the impression of being in place there may be a visible inclination to advance, this being displayed by the horse’s eager acceptance to move forward as soon as he is asked." [4]

Related Research Articles

Dressage Equestrian sport and art

Dressage is a form of horse riding performed in exhibition and competition, as well as an art sometimes pursued solely for the sake of mastery. As an equestrian sport defined by the International Equestrian Federation, dressage is described as "the highest expression of horse training" where "horse and rider are expected to perform from memory a series of predetermined movements."

Horse gait Ways of movement of equines

Horses can use various gaits during locomotion across solid ground, either naturally or as a result of specialized training by humans.

Collection (horse)

Collection occurs when a horse's center of gravity is shifted backwards. Energy is directed in a more horizontal trajectory with less forward movement. Biomechanical markers include: increased flexion in the lumbo-sacral joint, stifle, and hocks of the horse; increased engagement of the thoracic sling muscles resulting in the withers rising relative to the horse's scapula; and reduced ranges of limb protraction–retraction.

Equitation

Equitation is the art or practice of horse riding or horsemanship.

Piaffe

The piaffe is a dressage movement where the horse is in a highly collected and cadenced trot, in place or nearly in place. The center of gravity of the horse should be more towards the hind end, with the hindquarters slightly lowered and great bending of the joints in the hind legs. The front end of the horse is highly mobile, free, and light, with great flexion in the joints of the front legs, and the horse remains light in the hand. The horse should retain a clear and even rhythm, show great impulsion, and ideally should have a moment of suspension between the foot falls. As in all dressage, the horse should perform in a calm manner and remain on the bit with a round back.

Trot

The trot is a two-beat diagonal horse gait where the diagonal pairs of legs move forward at the same time with a moment of suspension between each beat. It has a wide variation in possible speeds, but averages about 13 kilometres per hour (8.1 mph). A very slow trot is sometimes referred to as a jog. An extremely fast trot has no special name, but in harness racing, the trot of a Standardbred is faster than the gallop of the average non-racehorse, and has been clocked at over 30 miles per hour (48 km/h).

Spanish Riding School

The Spanish Riding School is an Austrian institution dedicated to the preservation of classical dressage and the training of Lipizzaner horses, based in Vienna, Austria, whose performances in the Hofburg are also a tourist attraction. The leading horses and riders of the school also periodically tour and perform worldwide. It is one of the "Big Four", the most prestigious classical riding academies in the world, alongside the Cadre Noir, the Portuguese School of Equestrian Art, and the Royal Andalusian School.

Canter and gallop Equine gait

The canter and gallop are variations on the fastest gait that can be performed by a horse or other equine. The canter is a controlled three-beat gait, while the gallop is a faster, four-beat variation of the same gait. It is a natural gait possessed by all horses, faster than most horses' trot, or ambling gaits. The gallop is the fastest gait of the horse, averaging about 40 to 48 kilometres per hour. The speed of the canter varies between 16 to 27 kilometres per hour depending on the length of the horse's stride. A variation of the canter, seen in western riding, is called a lope, and is generally quite slow, no more than 13–19 kilometres per hour (8–12 mph).

Pirouette (dressage)

A Pirouette is a French word for the Ballet reference, "to whirl about."

Ambling gait Horse gait

An ambling gait or amble is any of several four-beat intermediate horse gaits, all of which are faster than a walk but usually slower than a canter and always slower than a gallop. Horses that amble are sometimes referred to as "gaited", particularly in the United States. Ambling gaits are smoother for a rider than either the two-beat trot or pace and most can be sustained for relatively long periods, making them particularly desirable for trail riding and other tasks where a rider must spend long periods in the saddle. Historically, horses able to amble were highly desired for riding long distances on poor roads. Once roads improved and carriage travel became popular, their use declined in Europe but continued in popularity in the Americas, particularly in areas where plantation agriculture was practiced and the inspection of fields and crops necessitated long daily rides.

Saddle seat Style of horse riding

Saddle seat is a style of horse riding within the category of English riding that is designed to show off the high action of certain horse breeds. The style developed into its modern form in the United States, and is also seen in Canada and South Africa. To a much lesser extent, it is ridden with American horse breeds in Europe and Australia. The breeds used for this flashy style are typically the showy Morgan Horse, and the high stepping American Saddlebred.

Equestrian at the Summer Olympics

Equestrianism made its Summer Olympics debut at the 1900 Summer Olympics in Paris, France. It disappeared until 1912, but has appeared at every Summer Olympic Games since. The current Olympic equestrian disciplines are Dressage, Eventing, and Jumping. In each discipline, both individual and team medals are awarded. Women and men compete together on equal terms.

François Baucher

A "baucher" is also a type of bit, named after the man.

Riding aids

Riding aids are the cues a rider gives to a horse to communicate what they want the animal to do. Riding aids are broken into the natural aids and the artificial aids.

Throughness

In equestrianism, throughness is an absence of resistance in the horse to the rider's commands.

On the bit

The phrases "on the bit", "behind the bit" and "above the bit" are equestrian terms used to describe a horse's posture relative to the reins and the bridle bit. A position on the bit is submissive to the rider's rein aids, given through the bit. When a horse is behind the bit, the head is tucked too far down and rearward. If above the bit, then the head is too high.

Show hack

The show hack is a type of ridden show horse, exhibited to a standard first established in England.

Studbook selection is a process used in certain breeds of horses to select breeding stock. It allows a breed registry to direct the evolution of the breed towards the ideal by eliminating unhealthy or undesirable animals from the population. The removal of individuals from a population is called culling, and does not suggest killing the animal in question. Typically, culls are castrated or they and their offspring are unable to be registered.

Lead (leg)

Lead refers to which set of legs, left or right, leads or advances forward to a greater extent when a quadruped animal is cantering, galloping, or leaping. The feet on the leading side touch the ground forward of its partner. On the "left lead", the animal's left legs lead. The choice of lead is of special interest in horse riding.

Five-gaited

Five-gaited horses are notable for their ability to perform five distinct horse gaits instead of simply the three gaits, walk, trot and canter or gallop common to most horses. Individual animals with this ability are often seen in the American Saddlebred horse breed, though the Icelandic horse also has five-gaited individuals, though with a different set of gaits than the Saddlebred.

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