Tuesday, April 24, 2018

Sports Injury: Footballers' ankle





Something a young sportsperson never wants to hear, especially if they are keen soccer or footy, is they suffer from a condition known as footballer's ankle. Literally this condition puts thousands of young hopefuls off the professional circuit every year and prevents them from ever playing the game seriously, again.



Footballer's Ankle is a pinching or impingement of the ligaments or tendons of the ankle between the bones, particularly the talus and tibia. This results in pain, inflammation and swelling. The condition was first described in 1950 and occurs in people who repeatedly kick a ball. Excessive kicking and up-ward bending and stretching of the foot causes strain on the capsular ligaments causes damage to the bones in front of the ankle. Repetitive ankle injuries cause not only thickened ligaments but also the bone in the ankle to hit the base of the shin bone causing a lump of bone or trapped ligament to appear. This restricts normal ankle movement and makes kicking a stationary ball, very painful. Some people respond well to surgical treatment but the vast majority of sufferers end up with chronic pain, especially if they attempt to persevere with activity.



Perhaps one of the few ways to help prevent this disorder is to learn, from a very early age, how best to kick the ball.



People who excel at sport tend to have the advantage their bodies are naturally made for that particular sport. Middle distance runners for example present a different leg foot relationship to long distance runners. In the former, the runner uses the ball of the foot, whereas in the latter, the heel strikes the ground first. Understanding this can help improve selection of young athletes and enrich training techniques sufficiently well enough to prolong their active careers.



In New Zealand researchers reported a small study on part-time soccer players to consider the relationship between anatomy of the player and type and frequency of injuries they sustained during a playing season. Players from Lower Hutt Football Club AFC (Premier Division in New Zealand) were examined and a diary of injuries recorded over the season. The data was compared to previously published data from a similar study conducted on professional Premier League players in England . Due to the limited size of the study, insufficient evidence was found to support the connection between anatomical make up of the individual player with the type of injury suffered. However the injuries noted in the New Zealand study were consistent with the type of play. High incidence of muscle strains and tendon pulls were recorded but ligament injury and joint sprains did not feature. A possible reason for this pattern of injuries may be related to the level of fitness of the player. Played at a slower pace, intricate ball skills are less obvious in New Zealand soccer than South American or Australian styles for that matter. Maintaining possession or dispossessing an opposing player takes longer therefore increasing the risk of contact and traumatic injury. Defensive and mid-field players were reported more at risk because they were involved in general play for longer periods of time. A lack of preparation before the game may also have contributed to their injuries. The playing surfaces had no significant effect on the type and frequency of injuries reported nor was new boots or studs a factor. All injured players were wearing boots worn for at least three months. Injury was more prone to occur during the first thirty minutes of the game with the first hard tackle being the primary cause of damage.


Saturday, April 21, 2018

Stress Fractures of the Metatarsals




Concerns were expressed as to the potential cause of foot fractures in football code players and the role of boots in cause and or prevention. First and foremost there are many types of fractures which can affect the foot and with 28 bones (26 small bones + 2 sesamoinds ) so the matter can be quite complex. However if restricted to March Fractures of the (middle) metatarsals these are due to fatigue cracks in the short bones (metatarsals). This results from rotation along the long access of the foot due to the pendulum swing of the rearfoot against the forefoot during propulsion. It may also arise as a result external forces (serendipitous trauma) acting upon the foot when it is in non weigtbearing.



Boot design can assist the foot to cope with some of these stresses but may not be able to cope with all external factors. Depending on the location of the fracture i.e. the base of the fifth metatarsal, repeated inversion of the foot (rotating inwards) will weaken or damage the insertion of the lateral tendons from the leg . Overuse (overplaying and training) will further weaken this important junction between the leg and foot. No boot can help prevent this once the weakness has been established and rest from peak stress is the only option. In the case of professional athletes with punishing expectations this is often not an option. Players will be played until a critical incident arises and radical options such as surgery are employed. The reason why so many cases are now reported is not because of an epidemic due to poor footwear but instead because the responsibility of duty of care to the player from their club (employer) requires all injuries are reported and the consequences of the damage and or outcome of treatment explained to player. For as long as we over exercise our professional athletes we can look forward to more fatigue related injuries. Take care of the pair.

Sunday, April 15, 2018

Goal line technology




Goal-line technology (or Goal Decision System) refers to an electronic means to determine when the ball has completely crossed the goal line with the sole intention to assist referees in awarding a goal or not. In the wake of controversial calls made in the Premier League, 2010 World Cup and the Euro 2012 FIFA have rather reluctantly accepted the need for GLT but insist the function is not to replace the role of the officials, but rather to support them in their decision-making. The introduction of the so-called "fifth official", i.e. the extra assistant referee standing beside the goal-line, was partly in order to facilitate in such situations.



FIFA’s decision to incorporate goal line technology is largely attributed to a 2010 World Cup game between England and Germany. Frank Lampard’s goal against Germany was disallowed despite television network footage showing it crossing the goal line before bouncing into the German goalkeeper’s hands. The game ended with a German victory, 4-1.



The International Football Association Board (IFAB) officially approved the use of goal line technology in 2012 and for the first time goal-line technology in a competitive match has been used at the 2014 FIFA World Cup in Brazil .





The GoalControl system was installed in each of the 12 stadiums. Each stadium is equipped with 14 high-speed cameras positioned around the field, with seven cameras focusing on each goalmouth (the area directly in front of the goal). The system was developed by the Fraunhofer Society in association with Select Sport . It works by detecting the passage of the ball using magnetic induction. A low frequency magnetic field is generated around the goal, which is monitored by coils installed in the goal posts and crossbar. The ball is fitted with a passive electronic circuit embedded between the leather outer and inflatable inner layers. Software monitors the condition of the magnetic field in the goal and can detect the change that occurs in it due to the passage of the coils in the ball over the line. Once detected, the system sends an encrypted radio signal in real time to a wrist watch worn by the referee, which both vibrates and displays a message that a goal was scored.



The first World Cup goal to be be award using GLT was in a group stage match between France and Honduras, the Honduran goalkeeper Noel Valladares dropped a shot from Karim Benzema into the goal.



Advocates for goal-line technology maintain it will significantly reduce refereeing errors during play (up to 30% of the referee’s decisions made during a game) but the systems still has critics mainly within FIFA itself. Critics believe the new technology will impact on the human element of the game and remove the enjoyment of debating mistakes. Without doubt the new technology is prohibitively expensive particularly for smaller/poorer football associations. Advocates contend that any extra help for the referee should outweigh arguments that it would lead to non-uniform rules (since not all football associations would be able to implement it). Goal line technology will likely remain a part of the World Cup in future years and many believe goal line technology will enable referees to focus more on off sides which is important as those are still entirely monitored by humans.



The electronic goal-line technology to be used in the 2018 FIFA World Cup Russia™ has been in use in all FIFA men’s senior events since 2012 FIFA Club World Cup Japan competition and was used for Women’s World Cup in Canada for the first time. The electronic goal-line technology will automatically register the goal and instantly alert the referee to the fact that the football has crossed the goal line. The following goal-line systems have been approved for use: GoalRef, Hawk-Eye, and GoalControl-4D. Recent reports of errors with GoalControl system during the Coupe de la Ligue quarter-finals, have cause d some concerns however and the use of the technology was suspendended. The Premier League, Bundesliga, Eredivisie and Italian Serie A all use a separate company, Hawk-Eye, for their goal-line technology, while GoalControl's system was used during the 2014 FIFA World Cup. Video Assistant Referees (VAR) has created confusion in the first full season of live trials which now include more than 1,000 games worldwide. Unease over the technology has largely centered on the lack of clarity for fans, coaches and television audiences over when and how decisions are reached using video review. The International Football Association Board (IFAB), FIFA have agreed Video Assistant Referees (VAR) will be at the World Cup in Russia 2018.

Monday, April 9, 2018

Football boots - manufacturers and retailers : The best of the rest




According to Football Bootas DB more players wore Nike boots (52.7 % | 387 players , followed by Adidas (263 players 35.7%) at the FIFA World Cup Brazil 2014. The remaining players wore other models from a variety of lesser known brands. For the most part these smaller companies look for niche areas or gaps in the market where they can establish their products.



Aspero
The German based company produce the Aspero Classic and Aspero Tec boot which feature leather uppers with Neokick touch control, and a ball control region right around the laces. Refined Nappa Leather strips are used to help grip and control the ball. The ball control area stops higher up the foot which creates a larger vamp for better ball contact. The boot is lined inside with a 3D Air Mesh to improve cushioning and ventilation, it also moulds to the foot reducing friction and foot slippage. On average the boots weigh 330g.



They are currently not available for sale outside Germany and did not feature in the FIFA World Cup Brazil 2014 but they are becoming more popular among the Bundesliga players and may well feature in the future.





Concord
Concord have three ranges of light soccer boots on the market; the Concord Techno , the Concord Performance and the Concord Aston. They are available with K-leather uppers or a microfibre upper. The boots share the same stud configuration and have a flex zone in the out-sole. The Concord Techno has asymmetrical lacing and weighs approx 10.2oz



The Concord Performance and Aston are very similar with the former slightly lighter (10oz)



The Concord Aston weighs 10.2oz. and appears outwardly to be more old school boot with thicker laces.



Both José "El Gallo" Vázquez and Carlos Alberto Peña (Mexico wore Concord S117CT at the FIFA World up Brazil 2014.







Diadora
After the Second World War , the Italian company soon established themselves as manufacturers of quality work shoes and mountain boots. In the 70s they started to produce football boots with the help of Roberto Bettega (Juventus and Italy ) .



Their range came to include kangaroo leather with bladed polyurethane outsoles. with many top professionals including Zico , Van Basten, Baggio, Roy Keane, and Recoba associated with them. In 1985 the company signed a sponsorship contract for the Italian National Soccer Team. Diadora America is the #3 brand in the market share in football (soccer).



Antonio Cassano (Parma and Italy) is a brand ambassador for Diadora and wears Diadora DD-NA 2 GLX 14 during the FIFA World Cup Brazil 2014.









Kripsta



Mickaël Landreau (France ) wore Kipsta 700 pro soccer cleats at the FIFA World Cup Brazil 2014.





Lotto Sport Italia
The company was established in 1973 by the Caberlotto family in Montebelluna, Northern Italy and started producing tennis shoes. Known for their sports clothing Lotto initially concentrated on the Italian market. They started production of football boots in the 1980s and signed major collaboration agreements with Dino Zoff and Ruud Gullit.



A takeover in 1999 saw the company renamed as Lotto Sport Italia and they now distribute in more than 60 countries. For the FIFA World Cup Brazil 2014 Lotto signed 5 players : Cristian Zapata (Colombia ), Johnny Acosta (Costa Rica), Esteban Granados (Costa Rica), and Máximo Banguera (Ecuador) will wear Lotta Solista boots. Maximo Banguera's boots have a special skin that reflects light, which the Italian shoemaker claims causes the shoes to “glow” in direct sunshine or under bright lights.



Adrian Bone (Equador ) will wear Lotto Zhero Gravit boots .









Mizuno
A Japanese boot supplier with plenty of new polymer technology packed into their soccer boots. Mizuno offers several different 2014 World Cup Boots, including the totally new Basara Speed Boot . Other popular ranges include Mizuno Morelia Neo and the Mizuno Wave Ignitus.



Brazilian striker Givanildo Vieira de Souza better known as Hulk (Brazil) wore Mizuno Morelia Neo. These are soft and lightweight kangaroo leather cleats made exclusively in Japan. Dual density outsole technology provides forefoot flexibility and midfoot shank rigidity, offering a barefoot feeling to maximize performance and touch. The High tech engineered outsoles provide flexibility and stability, offering a barefoot feeling to maximize performance and touch. The molded cleats are specifically made to provide traction and stability on firm ground fields.

South Korean internationalists, Hwang Seok-Ho, Park Chu-Young , Lee Keun-Ho , and Lee Yong -jaewore Mizuno Morelia Neo soccer cleats during the competition. As too did Hashem Beikzadeh ( Iran )



Ha Dae-Sung is a member of the South Korea 2014 World Cup Squad and wears Mizuno Morelia Neo Japan soccer cleats.



Mizuno Wave Ignitus are made to maximize kicking motion. The Primeskin uppers include specially designed panels (Tatekaiten and Yokokaiten Panels) that according to the manufacturers help drive, curl, and strike with precision and focus. The Mukaiten Panel (non-spin area) again according to the manufacturer offers the ability to create an unpredictable ball flight. The outsole design is based on soccer player bio mechanics data, allowing for stability and grip during ball strike, stability through the midfoot, and reduced pressure on the foot. Blade shaped studs provide exceptional traction on any firm ground field.



Maya Yoshida (Japan) and will wear Mizuno Wave Ignitus soccer cleats.



The new purple Mizuno Wave Ignitus III Boot is a special colorway called Morpho, inspired by the blue color of the Morpho rhetenor butterfly (blue elongate Atlas butterfly). The outsole is made for firm ground surfaces with blade shaped studs to increase traction and reduce stud pressure. The gold / black Mizuno Wave Ignitus III Boot will be worn by the Japanese midfielder Keisuke Honda during the 2014 World Cup.



Mizuno Morelia II
Toshihiro Aoyama is a member of the Japan 2014 World Cup Squad and wore Mizuno Morelia II soccer cleats.



Mizuno Basara 001
The Primeskin upper of the new Mizuno Basara 001 high performance football boot is also used for the Wave Ignitus III Boot. The synthetic upper material Prime Skin is made for a perfect ball control in all weather conditions. It also reduces weight because the Primeskin upper is thinner. The upper material has comparable softness and feel to kangaroo leather but with added an improved durability and a more structured fit. The silver R-Fiber Control technology used within the upper helps reduce excess stretching. The weight of the Mizuno Basara Boot: 175g. The outsole features the D-Flex Groove. The diagonal groove in the midfoot area allows the player to turn at maximum speed. The stud configuration comes with just two studs at the heel area for maximum speed. To reduce slipping, the insole of the new Mizuno Basara Boot features the new Zero Glide technology. ZeroGlide helps to reduces gap and slip of the foot in the shoe to provide a better traction. The yellow boot were worn by Shinji Okazaki (Japan) in Brazil.







Pantofola d’Oro
An Italian manufacturer of football boots, clothing and leisure footwear the company was established in 1886. Pantofola d’Oro started making customized football boots and trainers in the 1950s when Emidio Lazzarini took over the business from his father.



The classic Lazzarini Canguro is made made from one piece of leather hand stitched to a very basic looking soleplate. The tongue is lined with suede for added comfort. The boots are old school style and have no added bells or whistles but just ooze pure style. Unlike their modern counterparts the leather is prone to absorb water in wet conditions and does increase in weight with play but otherwise pure yesteryear class.



Pantofola d’Oro boots were worn by players like Ferenc Puskas (Hungary) ), Jurgen Klinsmann<./a> (West Germany) , Sven Goran Erikkson and Roger Milla (Cameroon) .





Patrick
Patrick (originally Patrick-Chaussures Techniques), was founded by Patrice Beneteau in 1892. They made a variety of quality sport shoes in a small factory in Vendée, France. More recently the company moved head quarters to Oudenaarde, East Flanders, in Belgium.



During the 70s and 80s Patrick sponsored Michel Platini (France) and Kevin Keegan Keegan later claimed in his autobiography he only wore the boots for the money.



Despite this the company made high quality foot gear which sold well. By the nineties Patrick withdrew from sponsorships as adidas and Nike began to dominate the marketplace. Instead the company exploited the market for referee boots. Frank De Bleeckere collaborated with Patrick to promote a shoe.



They continue to make old school styled soccer boots with the Patrick GoldCup the flagship of their current range.



The boots are available in soft full grain Kangaroo skin with different cleat designs. Completely lined for comfort they have an embroidered leather tongue, sides and spoilers, as well as a fully stitched polyurethane sole with molded polyurethane cleats or screw in stud options. Some models have reinforced heel counters and triple hardness outsole for durability.







Penalty
Penalty is a Brazilian sporting goods company established in 1970 and mainly supplying products for football market. In the 1980s, Penalty became the largest Brazilian manufacturer of balls.



In 2011 the company designed an exclusive boot for Victor Valdes (F C Barcelona and Spain). Victor wore the Adidas Predator Instinct soccer cleats in Brazil.



The Penalty S11 PRO boot incorporates a Celeron soleplate and a Tenvis technology upper (both unique to Penalty).



Topper
Topper is a South American Company which was founded in 1975, as a subsidiary of Alpargatas . During the 1980s Topper became one of the most important sportsbrand of Argentina. Currently the signature boot is The Topper Velocity boot which was designed to give quick players maximum speed.



Topper also make the “Fuerza” which is a best suited for strikers and the “Classico”, a more old school boot with leather uppers.



Umbro
A UK sportswear and football equipment supplier based in Manchester. The company was founded by Harold and Wallace Humphreys and the name "Umbro" a quasi-portmanteau from Humphreys Brothers Clothing. The Umbro's kit debut was in 1934 at the FA Cup final, when Manchester City and Portsmouth wore kits designed and manufactured by the company. Brazil became the first FIFA World Cup champion to wear kits by Umbro in 1958.



In 1960 Denis Law (Manchester United) became the first footballer to be sponsored by Umbro.



England lifted the World Cup wearing kits by Umbro in 1966.



In 1985 Umbro successfully introduced its first football boot in Brazil then a year later the company started supplying boots internationally. The company was bought by Nike, Inc. in 2007 in a deal worth GB£285 million. Nike later sold the company in 2012.



At the FIFA World Cup Brazil 2014 Mauricio Pinilla (Chile) plays in Umbro Geo Flare. The upper has a textured detailing offering enhanced control.



Joe Hart ( England ) plays in Umbro UX-1. The lightweight boots are built for comfort and control and have evolved from the A-Frame design and protective spine cushions. A dual density cage and a soft protective spine cushion the heel and safeguard the Achilles. The boots have a seamless one piece upper made from light, breathable material, which exhibits both strength and resilience.



On the soles are nine forefront studs spaced to reduce pressure and increase comfort. Four conical heel studs create superior traction, making it easier to change direction fast.







Under Armour
Under Armour, Inc. is a North American supplier of sportswear and casual apparel. The company was founded in 1996 and started selling selling footwear a decade later . Shoes are now Under Armour's fastest growing product line, growing 31% from 2011 to $239 million in sales in 2012.



Under Armour ClutchFit boots include ClutchFit™ technology to wrap players’ feet in a lightweight “second skin.” This is both comfortable and supportive.



Alfredo Talavera (Mexico) wears Armour ClutchFit boots.



Cameroon’s Benoit Assou-Ekotta wears Under Armour Blur Carbon III soccer cleats. These are made from a one-piece synthetic upper with a perforated tongue and die-cut sockliners are added for cushioning and comfort. Wider cleat placement and lateral outrigger allows quick directional changes. The boots weigh 8.8 oz.





Zygo Sports



Australian company based in Melbourne the Zygo Deztruct (under 310g*) has a soft microfibre upper with a side lacing system. The boot incorporates an internal TPU heel counter and moulded outsole and is designed using strategically positioned pods at the throat, toe and instep regions. According to the manufacturers the energy pods perform like a spring, storing and releasing vital energy as well as providing larger sweet spots. The ensuing friction provides exceptional grip assisting ball control and accuracy. The instep zone amplifies spin and swerve. This is a universal kicking boot suitable for soccer, Australian Rules and rugby.



Reference
Football Boots DB