Mi nombre es Legna , ofrezco entrenamientos en varios deportes como Volleyball, natacion, tennis .... Toda mi vida ha estado vinculada al deporte, estudie mi pre universotario en la ESPA NACIONAL  de Cuba como atleta de windsurf hasta terminar mi licenciatura en Sociologia.  En estos momentos me encuentro desde hace mas de un año en Miami trabajando independiente como Fotografo ya que tambien me gradue en arte y fotografia(ISA) ademas trabajo como tennis coach con ninos de 4 a 7 años. Me encantaria dar clases de natacion y volleyball en mi tiempo libre... My name is Legna, I offer training in various sports such as V ... View Profile

There is a wide variety of racket designs, although the badminton racket size and shape are limited by the Laws. Different rackets have playing characteristics that appeal to different players. The traditional oval head shape is still available, but an isometric head shape is increasingly common in new rackets. Various companies have emerged but Yonex of Japan and Li-Ning of China are the dominant players in the market. The majority of top tournaments are sponsored by these companies. Every year new technology is introduced by these companies but predominantly, all rackets are made of carbon graphite composite.
Although Kolkmann admits that concrete courts cost substantially more initially than asphalt, an asphalt surface often requires more frequent and costly upkeep over its lifespan to repair cracking and settling. "Through our own recordkeeping, we estimate that an asphalt court will be unavailable for play, due to repairs being made, for about 100 days over a 20-year period," he says. "During this same time, a post-tensioned slab would be down for about 20 days. In our climate in the upper Midwest, repairs can only be done in the summer, when everyone wants to play. For a private court, the downtime may not be as crucial. But for a club, it can be a substantial unknown cost in lost revenue."
In 1926, promoter C. C. Pyle established the first professional tennis tour with a group of American and French tennis players playing exhibition matches to paying audiences.[26][37] The most notable of these early professionals were the American Vinnie Richards and the Frenchwoman Suzanne Lenglen.[26][38] Once a player turned pro he or she was no longer permitted to compete in the major (amateur) tournaments.[26]
Focus on ball trajectory and how cleanly you hit the ball – this will then allow your brain to merge the technical instruction you’ve been working on with the natural way of movement that creates effortless power – and eventually sound tennis techniques will emerge that simultaneously produce a lot of effortless power and allow easy adjustments to different situations in the game.
Jeu de paume, an older version of modern-day tennis, was very popular in the 17th century and played an important part in the education of princes. As a royal sport, it was codified with etiquette and rituals. Although the Louvre Palace and the palaces at Vincennes, Fontainebleau, Compiègne and Saint-Germain all had their own tennis court, the Palace of Versailles had been without one since the room built under Louis XIII was destroyed in 1682 to ease the way for the building of the Grand Commun. Four years after Louis XIV and his Court moved to Versailles (in 1686), a new room was built for Nicolas Creté, Tennis Master to the King, a few hundred metres south-east of the Palace in the Old-Versailles district. Although built with private funds, it was frequented by Parisian tennis masters, the Court, and the royal family. According to the memoirs of Charles Perrault, Louis XIV's physician had recommended "jeu de paume" to him as a salutary hygienic exercise.
"The biggest drawback of asphalt courts is not that they crack, for even a post-tensioned slab may crack from shrinkage or even develop minor structural cracking, but that the cracks continue to widen year after year," says Kolkmann. "I have seen asphalt courts with cracks as wide as 2 to 3 inches, making them a hazard to the players. The advantage with a post-tensioned slab is that it will not allow the crack to widen, but will keep it compressed to a very thin line."

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In some tournaments, line judges who would be calling the serve, were assisted by electronic sensors that beeped to indicate the serve was out. This system was called "Cyclops".[60] Cyclops has since largely been replaced by the Hawk-Eye system.[61][62] In professional tournaments using this system, players are allowed three unsuccessful appeals per set, plus one additional appeal in the tie-break to challenge close line calls by means of an electronic review. The US Open, Miami Masters, US Open Series, and World Team Tennis started using this challenge system in 2006 and the Australian Open and Wimbledon introduced the system in 2007.[63] In clay-court matches, such as at the French Open, a call may be questioned by reference to the mark left by the ball's impact on the court surface.
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Outside Australasia, the single achieved modest commercial success. It peaked at number 78 on the Canadian Hot 100 and remained for five weeks on the chart.[61] The track earned platinum certification from Music Canada, which denotes shipments of 80,000 copies in the country.[62] The single had the similar position on the UK Singles Chart and was certified silver by the British Phonographic Industry for track-equivalent sales of 200,000 units, based on sales and streams.[63][64] It also entered the top 100 of the German Singles Chart, where it reached number 83.[65] Despite not entering the record chart of Norway, the song was certified platinum by IFPI Norway for exceeding sales of 10,000 units in the country.[66] In the US, "Tennis Court" debuted at number 71, which was also its highest placement, on the Billboard Hot 100 chart dated 19 October 2013.[67] The single spent 18 weeks on the chart and had sold 355,000 copies in the US by April 2014.[68][18] It also reached number nine on the Hot Rock Songs, a Billboard auxiliary chart.[69]
“Gerry,” he began, “you yourself have said you want to get better, and you are getting better.” There followed a series of rhetorical questions involving whether the Utah coach was getting better, anyone else my age was getting better — whether he himself was getting better. He swept his arm up toward the main courts and noted that some of the players in the midst of matches up there, men in their 40s or early 50s, had been on high school teams and college teams. Wasn’t I holding my own in playing doubles with them?
"The contractor the homeowner chooses should be aware of all the different surface types, speed of play, and the size and slope requirements for court construction," stresses Kolkmann. The contractor should also pay close attention to special considerations, he adds, such as the desired surface texture, the finish of the concrete required to ensure good bonding of the color coating, and provisions for fencing and net posts.

3. They often take only private lessons and play points when they play on their own – which means that they do not have enough repetitions in situations without pressure where they could automate their technique. In other words, they don’t practice enough – they only get more information in private lessons and do not groove the strokes in practice.
This is a great question because it is so important to playing the game well. A grip size that is too small will cause your hand to slip on your racquet a little and a grip size that is too big will restrict your wrist movement and make it hard to adjust your grip as you play.To measure your grip you need to take out a measuring tape. Place your fingers on your hand extended out and together and then turn your palm up. With the measuring tape take a measurement from the very end of your ring finger down to the bottom crease in your palm (usually adjacent to where your thumb attaches to your palm). That will be the size grip you need to look for. It usually will fall between 4 inches and 4 ¾ inches on most people.Keep in mind that you may want to add a layer of grip tape to your new racquet like many people do. If you are one of those people then it is best to get a grip size that is one size smaller than what you measured your hand to be. This will allow for the extra grip tape without making the grip too big for your hand.

On 21 May 1881, the oldest nationwide tennis organization in the world[20] was formed, the United States National Lawn Tennis Association (now the United States Tennis Association) in order to standardize the rules and organize competitions.[21] The U.S. National Men's Singles Championship, now the US Open, was first held in 1881 at the Newport Casino, Newport, Rhode Island.[22] The U.S. National Women's Singles Championships were first held in 1887 in Philadelphia.[23]
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