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Recommended: Swimming and physics
Swimming is simple; it consists of two parts -- pulling and kicking. However, swimming is not all about strength, technique, or skill; it is also about fluid dynamics, drag reduction, and body structure. Due to drag reduction, some swimmers will go to extremes to reduce drag. How efficiently a swimmer kicks and pulls is also influenced by the viscosity of the water (the thickness of the water). As well as having strong muscles throughout the body because almost every muscle is used while swimming, there are many variables that effect the speed of a swimmer.
Several forces slow down a swimmer; two examples being friction and drag.Water is 700 times denser than air, 55 times more viscous (Gibo, 2005, para. 3), and 1,000 times more resistant (Koff, Matkovich, McPhilips, 2004, para. 1). Because of this density, viscosity, resistance, drag heavily affects a swimmer’s speed. A liquid’s viscosity increases as its temperature decreases (“Viscosity”, n.d., para. 1). The average water temperature for an athletic pool is 25.5-27.5 degrees Celsius, giving pool water a relatively high viscosity (“Air and Water Temperature Guidelines”, n.d., para. 21). Friction is caused by the constant contact between the swimmer and the water molecules (Gibo, 2005, para. 4), causing what is known as friction drag. Friction drag comes into play the most when the swimmer is at racing speeds. "The pressure around the swimmer increases due to the difference in water velocities directly around his or her body” (Gibo, 2005, para. 6). Because drag has such a large impact, swimmers will try to reduce their drag as much as possible.
Two ways swimmers can reduce the amount of drag they create is by means of shaving and using the right equipme...
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Koff, T., Matkovich, E., & McPhillips, K. (2004, April 15). The physics of swimming. Retrieved
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Nasr, S. L. (n.d.). Can a swimsuit make you swim faster? Retrieved November 5, 2013, from http://science.howstuffworks.com/swimsuit-swim-faster3.htm Nelson, R., & McNeill, A. (Eds.). (2004). Junior reference collection (Vol. 5). Retrieved from
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Sharp, R. L., & Costill, D. L. (1989, October 21). Influence of body hair removal on physiological responses during breaststroke swimming. Retrieved from http://www.ncbi.nlm.nih.gov/pubmed/2691818
Viscosity. (n.d.). Retrieved November 6, 2013, from http://www.chem.purdue.edu/gchelp/liquids/viscosity.html
water, curved and smooth and green.'; This seems to illustrate the peacefulness of the situation, almost creating a lazy, calm atmosphere. However, the imagery within “The Swimmer'; is quite opposite. “The Swimmer'; tends to portray a scene of force, as there is no evidence of the peaceful interaction between man and water as found in “Lone Bather.'; Evidence of such force ...
The human body is composed of three different energy systems that “provide energy for muscular work and exercise, including two anaerobic systems and one aerobic.” (Amezdroz, Dickens, Hosford, Stewart, and Davis,2010) (Refer to Appendix A). Our bodies need a continuous supply of energy in the form of ATP (Adenosine Phosphate) to do work. All three systems produce ATP to fuel our bodies with energy depending on the conditions of the activities, such as duration and intensity. An aquathon is “the simplest form of multisport, it consists of swimming and running” (Triathlon.org, 2018). This analytical exposition will justify how the contribution of energy from the aerobic system supports my aquathon capacities.
When performing in a triathlon, which consists of swimming, cycling, and running in a single continuous event, it is generally accepted throughout the exercise science community, that “over performing” during the cycling stage by increasing ones cadence or aerobic power, could hinder the running portion of the triathlon that follows (Hausswirth). In order to help triathletes in avoiding this potential problem, the researchers set the purpose of the experiment as follows:
Swimmers tend to be tall and have a noticeable upper body muscle development. Having low body
brief description of how physics plays a part in improving you game of pool. So read on
Divers cannot put the equipment on and immediately dive in. Before diving there are a series of procedures the diver and their partners must do before going down. In addition, the further down the diver dives the more pressure pressing down on the diver which lessens the amount of oxygen in the scuba tank. Therefore, the further down the diver dives the less time the diver can spend on the bottom. But now, by far the largest group of divers is “Recreational Divers”. These dives are practiced at depths of less than 130 feet, from these depths, divers can make a straight ascent to the surface. Diving beyond this limit requires advanced training. Also, when diving the diver must take into account the amount of time spent descending and ascending in the water. If the diver descends too quickly the pressure can deflate their lungs and cause problems. Similarly, if they ascend too quickly nitrogen bubbles can form under the diver’s skin causing bends or decompression sickness. This sickness can be extremely harmful and possibly fatal. Lastly, a dive watch or computer is needed to calculate the amount of oxygen left in their tank and the depth. Dive computers help the divers be aware of their conditions and keep them
Human Diving Response. Department of Biology, saint Louis University. Retrieved from starklab.slu.edu/PhysioLab/Diving.htm. April 18, 2011.
This force now can be used by the diver not only to go up, but to rotate and therefore perform various dives.
(2011), traditional ergometers are stationary (i.e. known as fixed ergometer) that the rower moves respectively to the resistance unit. However, they stated that the dynamic ergometers (i.e. known as slides ergometer) are the best simulation on-water rowing in which all parts of the ergometer moves in response to the motion of the athlete. Additionally, both types of ergometers were used by rowers for training, evaluation and team selection (Shazlin and Sunil, 2015). In recent, the most used rowing ergometer is the Concept II rather than among the existing models (Elliot et al., 2002) which led the market since the development of the II b model in 1986 (Smith and Hopkins, 2012). The similar biomechanics have shown on dynamic ergometry and sculling (i.e. on-water rowing) (Elliot et al., 2002) as notice that shorter drive lengths and higher handle forces during ergometry than sculling (Kleshnev, 2005). Besides, biomechanical analysis shown that the stroke profile in slide rowing differs from stationary rowing as the max and mean forces during slide rowing are lower and stroke frequency is higher at the same work intensity (Larsen and Jensen, 2010). The previous studies observed that the rowers were generated lower stroke forces and higher stroke rates during dynamic than stationary ergometry (Colloud et al., 2006). They reported that significant difference in force curve profiles which is handle and stretcher force during slides ergometer and
In swimming you turn direction when you get to the end of a swimming pool, for freestyle and backstroke you use a tumble turn to change. direction, in butterfly and breathstroke you have to touch the wall with two hands and push off the wall with your feet. Again, speed is only really important in hockey and football. In swimming. There are two types of course, short course and long course.
When people are swimming, apart from the swimming technique of individual, there is another important factor affecting the speed, which is the drag of body. Therefore, the properties of the high technology swimwear are also designed based on how to reduce the drag.
Surfing is the sport of riding a surfboard toward the shore on the crest of a wave. It is an amazing sport to learn and it gives the rider a hell of an adrenaline rush!! There are three major phases of surfing – paddling, push up and the standing position. This report will give you a full understanding of the correct techniques to use while surfing and it also describes the basic structure and function of the muscular-skeletal and cardio-respiratory systems of the human body. It will also describe the many different energy systems and how they change when surfing.
...or the speed of this stroke. Swimmers can choose how many strokes they take before they need to breathe. Each breath is a movement outside of the streamline. Every movement of the body outside of the streamline body position of this stroke can slow the swimmer down.
The affects of swimming on disabled people’s bodies’ physically is colossal due to the fact that water provides support, stability, and has numerous healing mechanisms. According to aquatic therapist Stacy Bintzler, “Water has four main features that are not offered through land activity: buoyancy, resistance, support and hydrostatic pressure” which allows for simple movement to be less painful and easier in comparison to the same movements on land (Bintzler). Water’s main components aid in the following ways: buoyancy, reduces stress on joints; resistance, buil...
"Swimming Introduction, Organizations, Strokes, Benefits, History, Tips and Information - MedicineNet." Swimming Strokes, Benefits, Classes, History, Tips and Information - MedicineNet. MedicineNet, 2014. Web. 27 Mar. 2014.