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Separated Shoulder
A separated shoulder, also known as acromioclavicular joint injury, is a common injury to the acromioclavicular joint. The AC joint is located at the outer end of the clavicle where it attaches to the acromion of the scapula. Symptoms include non-radiating pain which may make it difficult to move the shoulder. The presence of swelling or bruising and a deformity in the shoulder is also common depending on how severe the dislocation is. It is most commonly due to a fall onto the front and upper part of the shoulder when the arm is by the side. They are classified as type I, II, III, IV, V, or VI with the higher the number the more severe the injury. Diagnosis is typically based on physical examination and X-rays. In type I and II injuries there is minimal deformity while in a type III injury the deformity resolves upon lifting the arm upwards. In type IV, V, and VI the deformity does not resolve with lifting the arm. Generally types I and II are treated without surgery, while ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Collarbone
The clavicle, collarbone, or keybone is a slender, S-shaped long bone approximately long that serves as a strut between the shoulder blade and the sternum (breastbone). There are two clavicles, one on each side of the body. The clavicle is the only long bone in the body that lies horizontally. Together with the shoulder blade, it makes up the shoulder girdle. It is a palpable bone and, in people who have less fat in this region, the location of the bone is clearly visible. It receives its name from Latin ''clavicula'' 'little key' because the bone rotates along its axis like a key when the shoulder is abducted. The clavicle is the most commonly fractured bone. It can easily be fractured by impacts to the shoulder from the force of falling on outstretched arms or by a direct hit. Structure The collarbone is a thin doubly curved long bone that connects the arm to the trunk of the body. Located directly above the first rib, it acts as a strut to keep the scapula in place so tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Football
American football, referred to simply as football in the United States and Canada and also known as gridiron football, is a team sport played by two teams of eleven players on a rectangular American football field, field with goalposts at each end. The offense (sports), offense, the team with possession of the oval-shaped Ball (gridiron football), football, attempts to advance down the field by Rush (gridiron football), running with the ball or Forward pass#Gridiron football, throwing it, while the Defense (sports), defense, the team without possession of the ball, aims to stop the offense's advance and to take control of the ball for themselves. The offense must advance the ball at least ten yard, yards in four Down (gridiron football), downs or plays; if they fail, they turnover on downs, turn over the football to the defense, but if they succeed, they are given a new set of four downs to continue the Glossary of American football#drive, drive. Points are scored primarily b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roller Derby
Roller derby is a roller skating contact sport played on an oval track by two teams of five skaters. It is played by approximately 1,250 amateur leaguesA Roller Derby league is synonymous with an individual club or team in other team sports, as opposed to the more typical use of the word Sports league, league. worldwide, though it is most popular in the United States. A 60-minute roller derby game, or ''bout'', is a series of two-minute timed ''jams''. Each team, typically with a roster of 15, fields five skaters during each jam: one ''jammer'', designated with a star on their helmet, and four ''blockers''. During each jam, players skate counterclockwise on a circuit track. The jammer scores a point for each opposing blocker they lap. The blockers simultaneously defense (sports), defend by hindering the opposing jammer, while also playing offense (sports), offense by maneuvering to aid their own jammer. Because roller derby uses a penalty box, Power play#Roller Derby, power jam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cycling
Cycling, also known as bicycling or biking, is the activity of riding a bicycle or other types of pedal-driven human-powered vehicles such as balance bikes, unicycles, tricycles, and quadricycles. Cycling is practised around the world for purposes including transport, recreation, exercise, and competitive sport. History Cycling became popularized in Europe and North America in the latter part and especially the last decade of the 19th century. Today, over 50 percent of the human population knows how to ride a bike. War The bicycle has been used as a method of reconnaissance as well as transporting soldiers and supplies to combat zones. In this it has taken over many of the functions of horses in warfare. In the Second Boer War, both sides used bicycles for scouting. In World War I, France, Germany, Australia and New Zealand used bicycles to move troops. In its 1937 invasion of China, Japan employed some 50,000 bicycle troops, and similar forces were instrumental in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crack The Whip
Crack the whip (also known as Pop the Whip or ''Snap the Whip'') is at its simplest an outdoor children's game, usually played in small groups, on grass and sometimes ice. One player, chosen as the "head" of the whip, runs (or skates) around in random directions, with subsequent participants holding on to the hand of that ahead of them (or hips when skating) and seeking to hang on. With every turn the forces generated accelerate the tail, the sharper the turn and longer the tail the more so, eventually "cracking the whip" and sending one or more players flying. Unlike musical chairs the game is not won by the last to hold on. Instead, those shucked along the way are welcome to rejoin the game so long as they can hang on, with competition among them to resume as close to the current tail as they can, to minimize the likelihood of being thrown off again at its end. There is no objective to the game, which was illustrated in Winslow Homer's 1872 painting of boys joyously plunged i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skateboarding
Skateboarding is an extreme sport, action sport that involves riding and Skateboarding trick, performing tricks using a skateboard, as well as a recreational activity, an art form, an entertainment industry Profession, job, and a method of transportation. Originating in the United States, skateboarding has been shaped and influenced by many skateboarders throughout the years. A 2009 report found that the skateboarding market is worth an estimated $4.8 billion in annual revenue, with 11.08 million active skateboarders in the world. In 2016, it was announced that skateboarding would be represented at the 2020 Summer Olympics in Tokyo, for both male and female teams. Skateboarding made its Olympic debut in 2020 and was included in the 2024 games. Since the 1970s, skateparks have been constructed specifically for use by skateboarders, freestyle BMXers, aggressive inline skating, aggressive skaters, and more recently, Freestyle scootering, scooters. However, skateboarding has becom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snowboarding
Snowboarding is a recreational and competitive activity that involves descending a snow-covered surface while standing on a snowboard that is almost always attached to a rider's feet. It features in the Winter Olympic Games and Winter Paralympic Games. Snowboarding was developed in the United States, inspired by skateboarding, sledding, surfing, and skiing. It became popular around the world and was introduced as a Winter Olympic Sport at Nagano in 1998 and featured in the Winter Paralympics at Sochi in 2014. , its popularity (as measured by equipment sales) in the United States peaked in 2007 and has been in a decline since. History The first snowboards were developed in 1965 when Sherm Poppen, an engineer in Muskegon, Michigan, invented a toy for his daughters by fastening two skis together and attaching a rope to one end so he would have some control as they stood on the board and glided downhill. Dubbed the "snurfer" (combining snow and surfer) by his wife Nancy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rugby Football
Rugby football is the collective name for the team sports of rugby union or rugby league. Rugby football started at Rugby School in Rugby, Warwickshire, England, where the rules were first codified in 1845. Forms of football in which the ball was carried and tossed date to the Middle Ages (see medieval football). Rugby football spread to other Public school (United Kingdom), English public schools in the 19th century and across the British Empire as former pupils continued to play it. Rugby football split into two codes in 1895, when twenty-one clubs from the North of England left the Rugby Football Union to form the Rugby Football League, Northern Rugby Football Union (renamed the Rugby Football League in 1922) at the George Hotel, Huddersfield, George Hotel, Huddersfield, over payments to players who took time off work to play ("broken-time payments"), thus making rugby league the first Football, code to turn professional sport, professional and pay players. Rugby union turn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rowing (sport)
Rowing, often called crew American English, in the United States, is the sport of racing boats using Oar (sport rowing), oars. It differs from paddling sports in that rowing oars (called blades in the United Kingdom) are attached to the boat using Rowlock, rowlocks, while paddles are not connected to the boat. Rowing is divided into two disciplines: sculling and sweep rowing. In sculling, each rower (or oarsman) holds two oars, one in each hand, while in sweep rowing each rower holds one oar with both hands. There are several boat classes in which athletes may compete, ranging from single sculls, occupied by one person, to shells with eight rowers and a coxswain (rowing), coxswain, called eight (rowing), eights. There are a wide variety of course types and formats of racing, but most elite and championship level racing is conducted on calm water courses long with several lanes marked using buoys. Modern rowing as a competitive sport can be traced to the early 17th century whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Combat Sports
A combat sport, or fighting sport, is a contact sport that usually involves one-on-one combat. In many combat sports, a contestant wins by scoring more points than the opponent, submitting the opponent with a hold, disabling the opponent (''knockout'', KO), or attacking the opponent in a specific or designated technique. Combat sports share a long history with the martial arts. Some combat sports (and their national origin) include boxing (Greek-British), Brazilian jiu-jitsu (Japanese-Brazilian), catch wrestling (British-American), jujutsu (Japanese), judo (Japanese), freestyle wrestling (British-American), Greco-Roman wrestling (French), karate (Chinese-Okinawan-Japanese), kickboxing (numerous origins, mainly Southeast Asian), Lethwei (Burmese), mixed martial arts (numerous origins), Muay Thai (Thai), Sambo (martial art), sambo (Soviet/Russian), sanda (sport), sanda (Chinese), savate (French), taekwondo (Korean), Vale Tudo (Brazilian), pankration (Ancient Greek), Luta Livre, luta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parkour
Parkour () is an athletic Training#Physical training, training discipline or sport in which practitioners (called ''traceurs'') attempt to get from one point to another in the fastest and most efficient way possible, without assisting equipment and often while performing feats of acrobatics. With roots in military obstacle course training and martial arts, parkour includes Flip (acrobatic), flipping, running, climbing, :wikt:swing, swinging, vault (urban movement), vaulting, jumping, plyometrics, roll (gymnastics), rolling, and crawling (human), quadrupedal movement—whatever is suitable for a given situation. Parkour is an activity that can be practiced alone or with others, and is usually carried out in Urban area, urban spaces, though it can be done anywhere. It involves seeing one's environment in a new way, and envisioning the potential for navigating it by movement around, across, through, over and under its features. Historically, Flip (acrobatic), flips and other Acroba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lacrosse
Lacrosse is a contact team sport played with a lacrosse stick and a lacrosse ball. It is the oldest organized sport in North America, with its origins with the indigenous people of North America as early as the 12th century. The game was extensively modified by European colonists, reducing the violence, to create its current collegiate and professional form. Players use the head of the lacrosse stick to carry, pass, catch, and shoot the ball into the goal. The sport has five versions that have different sticks, fields, rules and equipment: field lacrosse, women's lacrosse, box lacrosse, lacrosse sixes and intercrosse. The men's games, field lacrosse (outdoor) and box lacrosse (indoor), are contact sports and all players wear protective gear: helmet, gloves, shoulder pads, and elbow pads. The women's game is played outdoors and does not allow body contact but does allow stick to stick contact. The only protective gear required for women players is eyegear, while go ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
