Running is a very simple task, all it is is rapid leg movements, along with arm swinging, through long strides while on foot. To be considered an act of running, both feet must be held off the ground at regularly spaced brief intervals. Believe it or not, there is actually a lot of physics behind running. There is the speed of the runner, the length of each stride the runner takes, the energy you use and how to save it, and then you have the pendulum law.
The speed of the runner is very easy to determine. It's only stride length times stride frequency, for example if you travel five feet in one stride and you take three strides per second you're speed will be 15 feet per second. Basic math. Although, there are three different types of stride lengths, takeoff, flight, and landing distance. Takeoff distance is the distance that the body's center of mass is ahead of the toe of the front foot at the instant the back foot leaves the ground. The flight distance is the distance that the body's COM travels while the runner is in the air. The landing distance is the distance that the toe of...
A runner must use a strategy that is specific to that style of racing. If a distance runner attempts to apply pacing to a short sprint he has lost the race before approaching the start. Although racing strategies differ between every individual race it is possible to associate some basic strategies used in particular types of races. These techniques are common amongst the runners of a particular event but vary compared to runners of different types of races.
Gliding is the art of maintaining the flattest ski in order to achieve the lowest possible friction. The forces associated with gliding are fairly straightforward: gravity, friction, and air resistance. Air resistance has several inputs that add to the total resistive force. Friction is caused by the lack of a perfectly smooth surface between the skis and snow on a microscopic level. Think of it as the Rocky Mountain range trying to slide over the Himalayas. On a microscopic level this is what friction is.
The sport of rowing involves numerous combinations and classes of athletes. Boats can be rowed with or without coxswains (the non-rowing captain) and by 1, 2, 4, or 8 rowers. Each rower can handle one oar (sweeping) or two oars (sculling). Racing shells are currently being made with Carbon or Carbon/Kevlar combinations. The act of rowing involves the transfer of momentum by the rowers and their oars to the water. The momentum is transferred to the water by pulling on the oar and pushing with the legs (the feet are attached to the boat by restraints). This causes the seat to slide backwards and the oars to pivot on the riggers. Each stroke is made up of four basic parts: catch (blade vertical in the water, knees bent, arms forward), drive (legs straight, arms pulling toward the body), finish (oar out of water, blade vertical), recovery (body moves forward, blade turns from vertical to the horizontal). For some of the basic forces acting on a 4+ (coxed four) see Figure 1.
Its not quite easy to be a successful track runner. You have to be devoted enough to observe your eating habits, be able to weightlift, and constantly practice plyometric drills. Plyometrics are exercises used to strengthen leg muscles; which can include regular
Common dictionary definitions for the word run are “to go rapidly or hurriedly” from Merriam-Webster.com and “to go quickly by moving the legs more rapidly than at a walk…” from dictionary.com. This is what most people think when this word
To calculate the average acceleration will be derived by converting miles per hour into meters per second. To do this, divide the miles per hour by .6. This will give kilometers per hour. Then multiply that by 1000. This will give meters per hour. This gives meters per hour, to convert this to meters per second divide meters per hour by 3600. At this point divide by the time of the run, this is the average acceleration. Next it is known that gravity makes things fall at a speed of 10 meters per second. Take the average acceleration divided by the time to complete the run and divide this total by 10 meters per second and this gives a number that represents a multiple of gravitational force exerted on the masses involved in the acceleration. This number is a multiple of the normal gravitational force exerted on everything on earth.
Track and field-style events are among the oldest of all sporting competitions, as running, jumping and throwing are natural and universal forms of human physical expression. The first recorded examples of organized track and field events at a sports festival are the Ancient Olympic Games. At the first Games in 776 BC in Olympia, Greece, and only one event was contested which was the stadion footrace. We have track athletes to distinguish who is the best athlete for the event in which they are competing in and the athletes can be distinguished from high school, college, and even countries. All tracks athletes come in different shape and sizes, but one thing they
December 1891 in Springfield, Massachusetts a man by the name of Dr. James Naismith invented a world famous game called basketball. The game was invented to condition the young athletes for the winter. The game consisted of peach baskets and a soccer style ball. Dr. Naismith published 13 rules for the game. Naismith had a class of 18 and divided them to 2 teams of 9. The objective of the game was to throw the ball into the fruit baskets that were nailed on the gym balcony. The game was stopped until the janitor got the ladder and got the ball out of the baskets. Later on, the bottom of the baskets was removed.
Aerobic exercise involves improving the cardiovascular system. It increases the efficiency with which the body is able to utilize oxygen (Dintiman, Stone, Pennington, & Davis, 1984). In other words, aerobic exercise means that continuous and large amounts of oxygen are needed to get in order to generate the amount of energy needed to complete the workout. The most common type of aerobic exercise is long-distance running, or jogging. While running, the body requires large amounts of energy in order for the body to sustain energy. “During prolonged exercise, most of the energy is aerobic, derived from the oxidation of carbohydrates and fats” (Getchell, 1976).
distance, and will continue to do so for infinity. In this way, the runner can
Gait speed is a timed assessment of a person walking a pre-determined distance at her usual pace. It has often been called the sixth vital sign in geriatrics. This is because it is both a sensitive and specific measure of physical mobility63,64. It is easy to measure and requires no special equipment. Slower gait speed has been shown to independently predict disability in the general geriatric population65,66. In elderly cancer patients improved gait speed is associated with improved survival67.
A good comparison of this is when one is looking at how long distance runners run compared to short distance runners. Distance runners can maintain their speed longer while short distance runners can achieve their top speed quicker.
Jesse Owens once said, “We all have dreams. But in order to make dreams come into reality, it takes an awful lot of determination, dedication, and self discipline, and effort.” Running track was always a dream of mine. Since I was a little girl, I always loved to run around the house, backyard, shopping store, everywhere. I had a lot of energy in me when I was little and my mom would call me a “busy body.” I struggled finding something I was good at that I actually enjoyed. My coach motivated me to run hurdles because she said I was tall and lanky. I had the body of an hurdler. Also it was something positive and kept me active while doing something I loved.I was determined to make this dream come true. Not only run track in grade school, but to be the best at my events and become the best and have numerous gold medals from the Olympics.
Running may be one of the oldest and most developed sports out there. According to legend, the first marathon was run unintentionally in 490 B.C. by a Greek Soldier(James). The soldier ran twenty-five miles to Athens to announce battleground victory over the persians then dropped dead(James). In 1896 the marathon was included in the Olympic games, in Greece, for the first time(James). It was there that the first gold was won by a Greek runner with a time of two hours fifty-eight minutes and fifty seconds(James). The current world record for the fastest finish is two hours three minutes and fifty-nine seconds(James). Marathoning has turned into a world wide activity and every person who participates must endure intense training.
Sir Isaac Newton is the man well known for his discoveries around the term, Motion. He came up with three basic ideas, called Newton’s three laws of motion.