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Blood Rule
A blood rule is a rule used in many sports that generally states that an athlete that receives an open wound, is bleeding, or who has blood on them or their clothes, must immediately leave the playing area to receive medical attention. Though they may be able to play again later, they cannot continue until the wound is taken care of, bleeding has stopped, and all contaminated equipment has been replaced. The main concern addressed by these rules is the spread of infectious diseases. Some sports where this is used are Australian Rules Football, NCAA Baseball, and some major American sports leagues. In the National Rugby League, for example, play stops whilst the player's medical staff attends to the wound. If the bleeding is not stopped to the referee's satisfaction, the player must then leave the field for further attention. In sports such as association football Association football, more commonly known as football or soccer, is a team sport played between two teams of 11 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sports
Sport is a physical activity or game, often competitive and organized, that maintains or improves physical ability and skills. Sport may provide enjoyment to participants and entertainment to spectators. The number of participants in a particular sport can vary from hundreds of people to a single individual. Sport competitions may use a team or single person format, and may be open, allowing a broad range of participants, or closed, restricting participation to specific groups or those invited. Competitions may allow a "tie" or "draw", in which there is no single winner; others provide tie-breaking methods to ensure there is only one winner. They also may be arranged in a tournament format, producing a champion. Many sports leagues make an annual champion by arranging games in a regular sports season, followed in some cases by playoffs. Sport is generally recognised as system of activities based in physical athleticism or physical dexterity, with major competi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open Wound
A wound is any disruption of or damage to living tissue, such as skin, mucous membranes, or organs. Wounds can either be the sudden result of direct trauma (mechanical, thermal, chemical), or can develop slowly over time due to underlying disease processes such as diabetes mellitus, venous/arterial insufficiency, or Autoimmune disease, immunologic disease. Wounds can vary greatly in their appearance depending on wound location, injury mechanism, depth of injury, timing of onset (Acute (medicine), acute vs Chronic condition, chronic), and wound sterility, among other factors. Treatment strategies for wounds will vary based on the classification of the wound, therefore it is essential that wounds be thoroughly evaluated by a healthcare professional for proper management. In normal physiology, all wounds will undergo a series of steps collectively known as the wound healing process, which include hemostasis, inflammation, proliferation, and tissue remodeling. Age, tissue oxygenation, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bleeding
Bleeding, hemorrhage, haemorrhage or blood loss, is blood escaping from the circulatory system from damaged blood vessels. Bleeding can occur internally, or externally either through a natural opening such as the mouth, nose, ear, urethra, vagina, or anus, or through a puncture in the skin. Hypovolemia is a massive decrease in blood volume, and death by excessive loss of blood is referred to as exsanguination. Typically, a healthy person can endure a loss of 10–15% of the total blood volume without serious medical difficulties (by comparison, blood donation typically takes 8–10% of the donor's blood volume). The stopping or controlling of bleeding is called hemostasis and is an important part of both first aid and surgery. Types * Upper head ** Intracranial hemorrhage — bleeding in the skull. ** Cerebral hemorrhage — a type of intracranial hemorrhage, bleeding within the brain tissue itself. ** Intracerebral hemorrhage — bleeding in the brain caused by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blood
Blood is a body fluid in the circulatory system of humans and other vertebrates that delivers necessary substances such as nutrients and oxygen to the cells, and transports metabolic waste products away from those same cells. Blood is composed of blood cells suspended in blood plasma. Plasma, which constitutes 55% of blood fluid, is mostly water (92% by volume), and contains proteins, glucose, mineral ions, and hormones. The blood cells are mainly red blood cells (erythrocytes), white blood cells (leukocytes), and (in mammals) platelets (thrombocytes). The most abundant cells are red blood cells. These contain hemoglobin, which facilitates oxygen transport by reversibly binding to it, increasing its solubility. Jawed vertebrates have an adaptive immune system, based largely on white blood cells. White blood cells help to resist infections and parasites. Platelets are important in the clotting of blood. Blood is circulated around the body through blood vessels by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sports Equipment
Sports equipment, also called sporting goods, are the tools, materials, apparel, and gear, which varies in shapes, size, and usage in a particular sport. It includes balls, nets, rackets, protective gears like helmets, goggles, etc. Since the performer must use a sport equipment, it can also be serve for protection. History and development of sports Historically, many sports players have developed their own sporting equipment over time. For instance, the use of a football dates back to ancient China, between the Warring States period (476–221 BC) and the Han Dynasty (220 AD). As football remains the most popular sport in the 21st century, the material of the ball has completely changed over the centuries; from being made out of animal skin, to being lined with multiple layers of polyester or cotton. As the sporting equipment industry improves, so do the athletes' performance. This is due to the fact that the equipment is more efficient, lighter and stronger, thus forming ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infectious Diseases
infection is the invasion of tissues by pathogens, their multiplication, and the reaction of host tissues to the infectious agent and the toxins they produce. An infectious disease, also known as a transmissible disease or communicable disease, is an illness resulting from an infection. Infections can be caused by a wide range of pathogens, most prominently bacteria and viruses. Hosts can fight infections using their immune systems. Mammalian hosts react to infections with an innate response, often involving inflammation, followed by an adaptive response. Treatment for infections depends on the type of pathogen involved. Common medications include: * Antibiotics for bacterial infections. * Antivirals for viral infections. * Antifungals for fungal infections. * Antiprotozoals for protozoan infections. * Antihelminthics for infections caused by parasitic worms. Infectious diseases remain a significant global health concern, causing approximately 9.2 million deaths ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian Rules Football
Australian football, also called Australian rules football or Aussie rules, or more simply football or footy, is a contact sport played between two teams of 18 players on an Australian rules football playing field, oval field, often a modified cricket ground. Points are scored by kicking the Football (ball)#Australian rules football, oval ball between the central goal posts (worth six points), or between a central and outer post (worth one point, otherwise known as a "behind"). During general play, players may position themselves anywhere on the field and use any part of their bodies to move the ball. The primary methods are kick (football), kicking, handball (Australian rules football), handballing and running with the ball. There are rules on how the ball can be handled; for example, players running with the ball must intermittently running bounce, bounce or touch it on the ground. Throwing the ball is not allowed, and players must not get caught holding the ball. A distinctiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NCAA Baseball
College baseball is baseball that is played by student-athletes at institutions of higher education. In the United States, college baseball is sanctioned mainly by the National Collegiate Athletic Association (NCAA); in Japan, it is governed by the . In comparison to American football and basketball, college competition in the United States plays a smaller role in developing professional players, as Minor League Baseball tends to be more extensive, with a greater history of supplying players from the high school level to Major League Baseball (MLB). But many amateur baseball players may choose college, for the sake of physical preparation and a softer transition from the high school level to the minor leagues. If players opt to enroll at a four-year college, they must complete three years of college to regain professional eligibility, or have turned at least age 21 before starting their third year of college. Players who enroll at junior colleges (i.e., two-year institutions) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NCAA
The National Collegiate Athletic Association (NCAA) is a nonprofit organization that regulates College athletics in the United States, student athletics among about 1,100 schools in the United States, and Simon Fraser University, 1 in Canada. It also organizes the Athletics (physical culture), athletic programs of colleges and helps over 500,000 college student athletes who compete annually in college sports. The headquarters is located in Indianapolis, Indiana. Until the 1956–57 academic year, the NCAA was a single division for all schools. That year, the NCAA split into the NCAA University Division, University Division and the NCAA College Division, College Division. In August 1973, the current three-division system of NCAA Division I, Division I, NCAA Division II, Division II, and NCAA Division III, Division III was adopted by the NCAA membership in a special convention. Under NCAA rules, Division I and Division II schools can offer athletic scholarships to students. Divi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Major Professional Sports Leagues In The United States And Canada
Major professional sports, professional sports leagues in the United States and Canada traditionally include four leagues: Major League Baseball (MLB), the National Basketball Association (NBA), the National Football League (NFL), and the National Hockey League (NHL). Other prominent leagues include Major League Soccer (MLS) and the Canadian Football League (CFL). MLB, the NBA, the NFL, and the NHL are commonly referred to as the "Big Four". Each of these is the wealthiest professional club competition in its sport worldwide, and along with the English Premier League they make up the top five sports leagues by revenue in the world. Each of the Big Four leagues, as well as MLS and the CFL, averages at least 15,000 fans in attendance per game . The NFL has the largest stadiums on average in the world, ranging in capacity from just over 60,000 to almost 100,000 spectators, while MLB ballparks generally hold between 30,000 and 50,000 fans. Venues used primarily by MLS and CFL vary mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Rugby League
The National Rugby League (also known as the NRL Telstra Premiership for sponsorship reasons) is a professional rugby league competition in Oceania which contains clubs from New South Wales, Queensland, Victoria (state), Victoria, the Australian Capital Territory, and New Zealand. Tracing its origins back to the New South Wales Rugby League, which formed in 1908, rugby league competition in Australia had gone through numerous iterations, including the 1990s Super League war, by the time the NRL formed in 1998 as a joint partnership between the Australian Rugby League Commission, Australian Rugby League (ARL) and the News Corporation-controlled Super League (Australia), Super League. The partnership was dissolved in 2012, with control of the NRL going to the re-constituted ARL, which was re-structured with an independent board of directors and renamed the Australian Rugby League Commission. The season typically runs from March to October, with each team playing 24 matches. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Association Football
Association football, more commonly known as football or soccer, is a team sport played between two teams of 11 Football player, players who almost exclusively use their feet to propel a Ball (association football), ball around a rectangular field called a Football pitch, pitch. The objective of the game is to Scoring in association football, score more goals than the opposing team by moving the ball beyond the goal line into a rectangular-framed Goal (sport), goal defended by the opposing team. Traditionally, the game has been played over two 45-minute halves, for a total match time of 90 minutes. With an estimated 250 million players active in over 200 countries and territories, it is the world's most popular sport. Association football is played in accordance with the Laws of the Game (association football), Laws of the Game, a set of rules that has been in effect since 1863 and maintained by the International Football Association Board, IFAB since 1886. The game is pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
