Discus Definition Essay Example for Free

Discus Definition Essay 1. Discus is a complex sport that requires skill and a lot of training. The discus is held in the dominant hand putting the first knuckles of your fingers around the edge. Your hand must be spread wide but not strained. You must orient your wrist so your index finger is directly in line with your forearm. You must then align yourself with the target area, either at your left shoulder or behind you. Most professionals face away from the target, which requires another 90 degrees of spin and can be a more difficult manoeuvre but optimizes throwing speed on a properly executed throw. Just before your right leg is planted, your left leg should rise off the ground with the momentum of your spin. As your right leg plants, your left leg should move low and fast around your body to plant in line with the right leg at the front of the circle. The left leg plants firmly and the entire momentum of the body is directed into the extended right arm. The hips drive through the rotation to face the target while the shoulders and arm trail behind and then snap through. The discus is released off the front of the fingers, rolling off the index finger, which imparts clockwise spin. The skeletal system has a major contribution as it provides the movement during the discus throw. The phalanges and metatarsals are used to allow the movement in the feet when spinning and swivelling. The feet play a very significant role throughout the entire preparation and throw. The tarsals in the ankles are gliding joints which allow for the ankles to create the joint action of dorsiflexion and plantar flexion when the individual turns their body in preparation for the throw. During the discus throw, the athlete lifts one foot in a plantar flexion whilst the other foot stays in the dorsiflexion position. During the whole throw, the legs are constantly flexed and extension is not made until the discus has been released and the athlete is not longer in motion. The vertebral column, consisting of the cervical vertebrae, thoracic curvature and the lumbar curvature, allows movement in the trunk. When the individual spins, the vertebral allows the trunk to rotate from side to side. Included in the trunk is the sternum and the rib cage. The patella is a condyloid joint is in a bent while the tibia, fibula and femur are all flexing as rotation is taking place. The pelvis which is a ball and socket joint allows flexion in the legs. The phalanges and the metacarpals flex as the discus is gripped. The carpals in the wrist are gliding joints, which rotate and flex as the arm swings back and forth across the body in order to keep a solid grip on the discus. The fingers extend when releasing the discus in order to get distance. The elbow, which is a hinge joint, allows bending when coming back across the body after hyperextension behind the body. It is then in a pronation position when extended forward. The muscular system also plays a major role in throwing a discus. The entire muscular system is required to enable to discus throw. The tibialis anterior, located near the tibia, allows the feet to produce the action of dorsiflexion, inversion and eversion. For the knee to be able to flex, the gastrocnemius and the hamstrings perform a concentric movement whilst the quadriceps and tibialis anterior create the eccentric movement because they lengthen. The erector spinae allows for the back to extend when the individual swings their arms back and forth around their body in preparation of releasing the discus. This allows for the muscle length to increase so that muscle is completing an eccentric contraction. Because the body is moving from side to side, the external obliques flex as the trunk rotates. Whilst the athlete is moving to the left, the left hand side obliques shorten, performing the concentric muscle contraction. At the same time the right external oblique is lengthening. This is constantly swapping as the athlete swings their arms from side to side. The trapezius elevates the shoulders and extends while the pectorals flex when the arms moves. The pectorals are performing concentric contractions and the trapezius is performing eccentric contractions. In the upper body the deltoids are extending as the arms hyperextend behind the body, which is an eccentric contraction, although it is becoming a concentric contraction as the arms move towards the front of the body. As the arm flexes, the bicep is performing a concentric contraction whilst the triceps perform eccentric contractions. The rectus abdominals are an isometric muscle contraction as they do not play a major role in performing discus. 2. In performing discus there are six main physical fitness and movement components. Three being health-related components and three being skill-related components. Muscular strength is highly necessary in discus. The more muscular strength an individual has, the further distance the discus will go. Flexibility is also a component of fitness involved in discus. It is one of the most neglected but most vital elements to an athlete. There are many different stretching techniques a discus athlete should perform in preparation. These include straddle stretch, upper groin stretch, butterfly groin stretch, trunk twist, open arm stretch, triceps stretch, cuff stretch. The skill related components that discus thrower posses are power, coordination and balance. There are many different training techniques that all professional discus throwers need to be able to perform. The first is weight lifting. Discus throwers should incorporate upper body and lower body exercises. For the upper body, perform workouts that train the essential muscles for discus throwing. These include bench press, shoulder press, triceps extensions, and shoulder lifts, exercises that improve the strength of the shoulders and arms to generate a longer throw. For the lower body, perform squats, lunges, and box jumps to improve leg power. Discus throwing includes a high level of intensity and a sudden burst of speed for a short interval of time. Another way discus throwers can train is by using medicine balls. Use a medicine ball to perform exercises that mimic throwing the disc. To increase oblique strength, throw a medicine ball from your hip against a wall and catch on the opposite side of your body. Repeat to strengthen both sides of the body. This strengthens the upper body by simulating similar movements to discus throwing. As with strength training, medicine ball exercises should be performed at maximum intensity. Another training technique is the tire flip. The tire flip improves explosiveness, endurance and full body muscle strength. Flip the tire as many times as you can at full intensity. The tire flip works the muscles necessary for the discus throw and greatly improves conditioning. There are also other training techniques for discus throwers such as stretching and the sandbag carrying. Athletes should perform a complete stretching routine before and after each training session. Since discus throwing incorporates all muscles of the body, take the time to stretch each muscle group thoroughly. Throwing a discus is an extremely intense movement, forcing your body to twist and jerk at high speed. Competitors can easily injure a number of muscle groups if they fail to prepare the muscles for the movements by stretching and warming up. The sandbag carry will develop your core and strengthen your abdominal muscles. As you throw the disc, your body is twisted at a high speed to generate power. Your abdominal muscles generate this twist as your arm swings around. The sandbag carry develops strength and endurance for this muscle group. This exercise also strengthens the shoulders and the arms. 3. Biomechanical principles deal with the scientific basis of human movement. Analysis of the way the body moves during the sport has led to improved and advances performance using newly developed techniques and modified or changed sports equipment. The first aspect of biomechanics that has an influence on discus is motion. Angular motion and momentum are the most influential in discus. Angular motion is motion in a curved or circular path. Discus is the best example of angular motion, as the thrower is moving in a circular path in preparation for the release of the discus. Linear and angular motion are combined in most movement activities. Momentum is the amount of motion possessed by a moving object. A moving object has a certain mass and velocity and the two of these together equals the momentum. The greater the momentum of the body, the greater the tendency to resist changes in motion. External forces can have an influence on momentum, as can internal forces. The greater the mass, the greater the momentum. When professional athletes spin in circles will preparing to throw the discus, they are aiming to gain momentum in order for the disk to go a further distance. Balance and stability also occur in discus. Dynamic balance is balance in motion. While the discus thrower is beginning their throw, they must keep dynamic balance in order for their throw to go as preferred. There are many factors that influence stability. These include mass, base of support, centre of gravity, stability and mobility. The greater the mass of the discus thrower, the more stable the body is likely to be. The larger the bass of support, the greater the stability. This is why taking larger steps while circling will benefit the thrower and give them more stability. The lower a person’s centre of gravity, the greater the stability. The line of gravity must be located within the supporting base to increase stability, therefore the closer to the ground the discus thrower is the more stable they will be and will get more distance in their throw. The momentum of an object directly affects stability in motion. The faster the discus throw is going, the more stable they are with their throw. The larger the mass, the greater its stability. Taller discus throwers will be less stable in motion than shorter discus throwers because of the height of their centre of gravity. Force is something that causes movement. A force may be a push or pull, that causes a change in the shape of an object or body. Forces can be internal or external. The body can apply force using the summation of forces. This is a combination of a number of forces working in sequence. For example in discus, forces produced by the feet, legs, arms, wrists and fingers produce the large forced used to throw the discus as far as possible. The body also applies force by Newton’s Third Law: for every applied force there is an equal and opposite force. For example in discus the thrower exerts a force against the ground and an equal and opposite force pushes the thrower off the ground. Applying force to objects depends on a number of factors. These include magnitude which is the amount of force that has been applied to the discus, direction which is the way the force is applied to the discus, the point of application which is the spot where the force is applied to the discus and the line of action which is the point of application plus the direction of the force.

Teenage Alcoholism Essay -- Alcohol Drinking binge Youth Essays

Teenage Alcoholism What is alcohol? Alcohol is many things to many people: To little kids, it is a curiosity. To teenagers, it is ?cool?. To responsible drinkers, it is a relaxant. To bartenders, it is a job, their lives. To restaurant owners, it is a moneymaker. To probation officers, it is a frustration. To actively drinking alcoholics, it is heaven. To wives and husbands of drinking alcoholics, it is a waste. To recovering alcoholics, it is a painful old friend. To us, it is something to be learned about and controlled. ? (Dolmetsch, p.4) The definition of alcoholism stresses the basic elements of (1) chronicity; (2) compulsive, uncontrollable drinking; (3) intoxication; and (4) interruption of normal life functions. (Claypool, p. 91) When the drinker?s work, social life, study habits, mental health, or family and personal relationships are affected, the possibility exists that the drinker may be an alcoholic. If the drinker is able to stop drinking permanently, then he is not considered to be an alcoholic. ?For teenagers and adults, alcohol is the most commonly abused drug. It is easy to get, easy to use, and as common in our society as aspirin.? (Claypool, p. 62) Millions of American teenagers drink alcohol. Young people drink for many reasons; whether it?s to escape the daily stress of school or family life, or to fit in with their friends. But sadly enough, many teenagers discover too late that drinking cannot solve any of their problems. Teenage drinking is now one of the most serious problems that young people face. (Landau, intro) In 1977, Senator Frank J. Dodd stated: ?Alcoholism is one of the greatest health problems in the United States and is one that afflicts individuals in virtually all social and economic categories and varying age groups.? (Claypool, pp. 90 -91) From the time children reach the age of 13 Â ½, 63 percent of the boys and 54 percent of the girls have at least tried their first alcoholic beverage. (Claypool, p. 14) Alcohol use substantially increases each year throughout junior and senior high school. By the twelfth grade, 93 percent of the young men and 87 percent of the young women have at least tried one drink. Thirty percent of these students had five or more drinks in a row within the previous two weeks. (Landau, p.15) The National Institute of Alcohol Abuse and Alcoholism states that: ?By the time ... ...le to pull through successfully. (Dolmetsch, pp. 88, 115) Alcoholism among teenagers in the United States is becoming more widespread than ever before. Current statistics present an unpleasant picture of teenage alcohol use rising every year. Alcohol use leads to teens having problems with school, family, or even with authorities. They may drink to escape these problems, or even to fit in with their friends. This problem of teenage drinking is now one of the most serious problems that young people face today, and the only way to stop these statistics from growing, is to educate the teenagers of the risks of drinking alcohol. Works Cited: Claypool, Jane. Alcohol and You. New York: Franklin Watts, 1988. Landau, Elaine. Teenage Drinking. New Jersey: Enslow Publishers, Inc. 1994. Lang, Alan. Alcohol: Teenage Drinking. New York: Chelsea House, 1992. Dolmetsch, Paul, and Gail Mauricette, ed. Teens Talk About Alcohol and Alcoholism. New York: Doubleday & Company, Inc. 1987. Spence, W.R. Drinking and Driving: Murder on Our Highways. Texas: Health Edco. 1998. Vogler, Roger E. Teenagers and Alcohol: When Saying No Isn?t Enough. Philadelphia: Charles Press, 1992.

Margaret Atwood †Relationship between three of her poems Essay

Margaret Atwood is a Canadian poet, novelist, and critic, noted for her feminism and mythological themes. She was born in 1939 in Ottawa, about the same time World War 2 started. Her life was lived in a time of male dominance, which she did not like. She expressed her views of this by writing, and her writings showed many of the feminine views that she believes in. According to a reviewer, Atwood’s writings are obtained from the â€Å"traditional realist novel,† where often the female protagonist is representative of an ‘everywoman’ character, and is victimized by gender and politics. In her stories Atwood combine fantasy and social realism, myth and parody and poetry, and also uses postmodernist devices to unsettle the certainties of traditional realism. The reason why she uses a lot of mythological themes is because her father was a forest etymologist. Many of the experiences that she had when she was a child, influenced her to write about the things of nature. Her writings were praised by many, this can be seen through all the awards and recognitions that she has received throughout her long and productive life. Her most outstanding award would be the Canadian Governor General’s Award for poetry in 1966. Her work has been an inspiration to many and she will be recognized for many years to come. The three poems that I am going to discuss are: The Landlady, Rat Song and Song of the Worms. All three of these poems use strong imagery to show Margaret Atwood’s view of the way that women are treated. She uses several tones in her poems, the tone that she generally uses for these three poems are frustration and anger. Another thing that she likes to use is a run on style of poetry, which allows for the readers emotions to carry on to the next line all the way to the end of the story. Almost all of her poems are free verse, I could not find any rhythmic or rhyming devices used in any of them. She likes to use symbolisms to get her point out, and when she uses them they are direct. One thing that I find interesting in her writings is that she likes to use something like personification, but it is the opposite. She is giving people qualities of animals. Her writing style is unique and interesting, and this style will be seen in the three poems. In the poem The Landlady, Atwood shows that women are stronger than men. In the beginning of the story, someone is describing the landlady and we do not  know who this someone is, but I think that this someone represents men. This person describes the landlady as intrusive and she is everywhere. This symbolizes that women are getting stronger and will be controlling the men. The next section says that the landlady controls the man’s life. Everything belongs to the landlady and nothing to the man. The next section is where the man tries to escape from the landlady, but she is always surrounding him. Even in the man’s dreams the landlady will be there and there will be no way around it. The last section describes how the landlady is overpowering and will not let the man go through her. This poem is free verse, which means that there are no literary devices. The only style of writing that I can see in her poem is a type of run on poem, which allows the reader’s emotions and thoughts to carry through to the end of the story. The tone of the story is fear and entrapment by the male because of the woman’s power and authority over them. I think that this is a poem about how strong the female can be over the men. The woman will be able to control the men, and men will be at the mercy of the women. This is a strong feminist view that Atwood supports and shows through her writing. This is a strong poem and was criticized by an American journalist for being too one sided. I think that Atwood got her point through in this poem. In the poem Rat Song, Atwood is trying to show how the rat symbolizes the woman. In the first section, it says that when the man hears the voice of the rat singing, the man takes out his gun and tries to kill the rat. This symbolizes the woman when she is trying to be heard, and the man is trying to shut the woman up. The next stanza shows that when the man tries to trap the rat, the rat outsmarts it. This makes the man think that the rat is dangerous because it is very smart. That stanza symbolizes how women are smart and men should watch out for them. The following stanza talks about what the rat really wants. It says in the poem, â€Å"All I want is love,† the rat does not want to bother the man or live off of the man, all it wants is some love. This is just like women today, they do not want to annoy men, and all they want are love and respect. The reason why the rat lives off the man is not because it wants to, but because it is the only thing that it can do. Atwood is tr ying to say that women are weaker because men are suppressing the women. In the last section, there is a line that says, â€Å"he is hiding /  between your syllables.† This line talks about how the rat can hear compassion, but it is trying not to be shown by the man. This is a really interesting poem that shows how Margaret Atwood feels about men. She uses many symbolisms to imply what the men are thinking about he women. His style of writing is basically free verse; there is no recognizable beat or rhyming scheme. The only type of literary device that I can see is that she uses a style of run on poetry. This style can be seen throughout the entire poem to allow the reader’s emotions to carry all the way to the end of the story. The tone that she uses in the poem is anger. Atwood is mad about how women are treated by men. She finds that men know that women are smart and therefore are trying to suppress females. Her imagery is convincing and really makes us want to think about the truths in her writing. This poem was written in the early seventies, which is about the time when the feminists’ ideals were strongly implanted into the women of North America. This feminist view can be seen throughout the poem and what Atwood feels is expressed in the entire poem. Overall, this was a great poem with a message to the men on how they are treating the women. In the poem Song of the worms, Atwood tells us how women have been stepped on and taken advantage of. In the first section, it talks about how the worms have done their work and have been underground for so long. This section shows us that men have suppressed women for a long time. The women have done enough work for the men and it is time for a change. The second section talks about how all the women want is to be loved. This section is similar to a part in the first poem where it says that all women want is to be loved. The twist here is that they are rejected by the â€Å"boots† of men. This symbolizes the men stepping on the women and treating them like dirt. The women have been stepped on long enough and they know what being stepped on is about. The next stanza says, â€Å"Soon we will invade like weeds, everywhere but slowly.† This is a very strong stanza that is trying to tell the men that soon the women will stand up for themselves and rebel. They will be stepped on no longer and have no fear of what men will try to do to them. The last stanza says that until the time comes, the worms will be in the dirt waiting for the right time to come out and attack. This poem is again free verse and uses a run on style of writing. Atwood makes the worm  symbolize the women who are hardworking and oppressed. She believes that one day, women will rise up and say, â€Å"Enough is enough,† and rise up to rebel against the men. All three of these poems deal with feminism and show what Atwood thinks is going on and what will happen. The writing styles of these three poems are similar. All of them use free verse and a run on poem style, which can be seen in almost all of her work. This allows an easier way to get her point through. Her poems are strong and provocative showing what many people do not want to hear or accept. In the last two poems, they both use certain types of animals to symbolize the woman and how the men are treating them. They both say that men are stepping on women and that the women will one day rise and take down these men. Atwood uses animals because of the way that she was raised up, which was in a home with the father as an etymologist. Her father’s occupation made her enjoy the wilderness and nature, which has influenced her writing today. The first poem is similar to the other poems because it shows that the women have finally stood up for themselves and is now in control. Her feminist views are influenced by the time period that these poems were written in. During the late sixties and early seventies, there was a strong feminist uprising making the women realize that they were like being treated like slaves.

Essay on Cause and Effect of Kristallnacht - 532 Words

Cause and Effect of Kristallnacht The Holocaust was a great tragedy, but it didnt happen overnight. It was a long process of demeaning Jews as subhuman. This started as early as 1933 when Hitler first came to power. However, Kristallnacht, or The Night of the Broken Glass, was like the dam bursting. It was when the government of Germany encouraged its people to loot and burn Jewish shops, synagogues, and schools. In addition, many Jews were pulled out of their houses in the middle of the night and sent to concentration camps. In some towns so many of the men were sent to the camps that the women and children were forced to clean up the broken glass that littered the streets. Kristallnacht was a very significant point in the Holocaust,†¦show more content†¦Aryan were told not to shop in Jewish shops and Jews could not shop in Aryan-owned shops. In 1935 The Nuremberg Race Laws were passed. These stated that Jews could not go to public swimming pools, theaters, schools, etc. In addition Jews were forced to sew a Star-Of-David on their clothes to identify them as Jews. At this point in time, Jews could do very little. Some were arrested just for taking a walk outside. So at this point in time Jews were very restricted. One Jewish teenager, Herschel Grinszpan, was living in Paris. His father was relocated by the Nazis to Poland. He decided that he was going to assassinate the German ambassador. He went to the embassy, but he was not able to locate his target. So he tried to assassinate Third Secretary Ernst vom Rath instead. Ironically, Rath was an anti-Nazi. Even though Rath was only a minor official, Hitler used propaganda to convince people that the act was an international conspiracy by Jews everywhere. Hitler made it seem as though Jews were attacking Germany itself. This is what led to Kristallnacht. The act of one Jew gave Hitler exactly the excuse he needed to hurt the Jews en masse and in public. It gave him the excuse for the government to condone mass destruction of Jewish prope rty and businesses. Even though Jews were losing their liberty they still endured it as best they could. However Kristallnacht convinced them once and for all that they were in serious trouble. Kristallnacht was organizedShow MoreRelatedAmerica ´s Options with World War II1302 Words   |  5 Pagesbefore 1935 tensions between Germany and the Jewish population were prevalent, harkening back to the Weimar Republic and the blame being placed on the Jewish population for the surrender of Germany. In 1935 the Nuremberg Race laws were placed into effect. These laws stated that the Jewish Population was no longer accepted as citizens of the Reich, as well as they could not marry German citizens. The laws also provided a description of what would make a person a Jew. 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