My expectation and inspiration for this analysis is based upon my prior knowledge that I have gained during our healthy body systems unit, looking deeply into the bodies muscular system and how it can affect a persons physical performance. My hypothesis for this experimentation is that the different varieties of shoes and their soles will affect the physical performance of a person while running.
This experimentation consists of different characteristics of the human bodies (lower) muscular system, specifically the feet and their functions while wearing different varieties of shoes. Whilst a person is running their feet go through two stages the first being Stance (Fig 1) and the second being Aerial (Fig 2), Aerial is the stage in which both feet are off the ground, and stance is when one foot is touching the ground. The Aerial phase consists of gravity pulling us down to the stance phase generating kinetic energy. Nevertheless, the moment our foot touches the ground (in the stance phase) the energy instantly decelerates, losing the kinetic energy in the process. The kinetic energy that is lost goes into the sounds and vibrations we create while striking the ground however, a large portion of it goes towards the tendons.
(Fig1) (Fig 2)
The Tendons and Muscles in our body are extremely springy, they perform almost like pogo sticks, exchanging kinetic energy from the Aerial faze into elastic potential energy in which our bodies can use later. Once the foot has reached the stance phase it will then proceed to excel forward by stepping off the springy tendencies, separating 50% of the elastic potential energy back into kinetic energy resulting in it becoming easier for our bodies to propel forward (Insider, Tech.) (Fig 3). If our bodies were deprived of this extra kinetic energy our bodies would have to exert more effort in order to take just one step, potentially putting more pressure on the knees.
Natalie Mackenzie states that the shoes you wear can make you feel slim, sexy and stylish—— or they can leave you wincing in pain (FoxNews.com), and in some cases this is true. While walking barefoot a persons foot lands flat on the ground, and rolls through the step, pushing off the toes, puts less stress on the knees. However, over the past few years shoes have become more for show than for comfort, using high heels as an example. High heels, if worn constantly may result in long-term damages to your body. A Danish study in 2010 found that wearing high heels can increase the chances of you obtaining diseases such as osteoarthritis by 6%, and wearing high heels can also decrease the number of calories a person burns daily, adding up to 2 kgs more weight in a year (Foot Sensation Canada). Another example is pointed shoes; because of the narrow sides, they compress the foot causing the protective layer around the nerves to break down. Fluid then begins to build up in the foot and symptoms such as inflammation and discomfort will slowly present themselves, if continued deformity may occur. The pointed toe shoe can also force toes to be compressed on top of each other, resulting in permanent deformities such as crossover toe.
Thongs are also another example of shoes used more for show than comfort. Thongs consist of one single thin strap that prevents the shoe from falling off, however in order for the shoe to stay on a person must bunch up their toes. This constant action makes it impossible for a person to flex there foots arch normally, prohibiting their foot from pushing off when taking a step, resulting in hips and knees absorbing most of the impact. Thongs also shorten a persons strides resulting in lower-body muscle tiredness over long periods of time. Lastly, Small shoes are a very large problem when running, there must be at least an inch of space between the tip of a persons big toe and the tip of the shoe to accommodate the shifting of the foot within the shoe while walking/running.
The purpose of this study is to demonstrate the difference in shoes and there soles on a persons physical performance while running. The Prior research I have conducted led me to believe that this topic is quite interesting, allowing me to look at a variety of different shoes and how they affect the physical performance of a person while running. This topic also helped me to create expectations for the results of my experimentation, which was based on the prior knowledge I have learned during our healthy body systems unit in science class, and the prior research, I have conducted online.
The results I have gathered show that the shoes with the intention of being worn more for show are relatively more painful, and can hinder a person from reaching there highest physical potential, resulting in slower times and physical injuries. As stated before shoes such as thongs and high heels can have long-term consequences when worn constantly, while runners are specifically designed to enable the foot to rolls through its natural movement, where the foot lands flat on the ground, and rolls through the step, pushing off the toes. Since thongs and high heals restrict the movement of the foot by causing the toes to contract and enabling proper sole movement it can hinder a persons physical performance, and creating long-term physical problem. While conducting this experimentation it was difficult for the subject to run is high heals because of the limited movement and the constant rubbing of the leather the top of the foot. Thongs (Flip-flops) were also a problem, resulting in cuts between the subjects big and second toes as a consequence of the rubber strap constantly rubbing against it.
The procedure used was very simple and consisted of basic vocabulary that any middle school student could understand. Although the procedure was quite basic there is room for improvement such as, while the person is running they cannot just stop half way in order for the instructor to check the time and, heart rate without the subjects heart rate decreasing slightly. Another flaw in this procedure is that this experimentation cannot be used with more than one person at a time, resulting in the instructor having to do the same steps numerous times with multiple subjects with different physical states in order to determine the alterations between different subjects physical performance and, how it can change due to their foot ware. Since this procedure takes large periods of time to complete only one subjects physical performance has been measured, meaning that although there are some distinct differences between the subjects physical performance while wearing different shoes, it is impossible to determine weightier or not it is only restricted towards this subject alone or it is connected to a variety of other subjects.
Throughout this interdisciplinary unit, I was able to contrast the different elements of our unit healthy body systems in science class with our PHE unit … During our science unit, we looked into the different aspects of the human body such as the muscular system, respiratory system, and the circulatory system. While during our PHE unit we looked into how to enhance our bodily systems, using different exercises and workout plans to reach out physical health goals, we also touched on the concept that all of our bodily systems are connected and when you work out one aspect of your body another section could also be affected by it. This is similar as to what we discussed in our science classes, how each part of the body is connected such as the respiratory system and the circulatory system. In order for the respiratory to properly operate the circulatory system must pump oxygen and carbon dioxide towards the lungs, working together in order to ensure that the body is provided with enough oxygen to pump the heart and other arteries.
Although interdisciplinary units allow the students to delve deeper into how different classes and units connect, it also can hinder their knowledge consumption. Considering that both classes want to teach the same unit but have different approaches to do so, it can become quite confusing for the student to keep up with what they have learned and what they are still yet to learn. An example of this is if we were to have a science class then got to our PHE class, they would begin by asking us what we have already learned in the science classes then build off of that, however during most PHE classes we would mostly be working on our reports instead of reviewing the information we have learned. This problem also occurs during science class when we are presented with the information but it is given to us quickly making it harder for us to have a good conceptual understanding of the topic before we are instructed to work on our reports once again. Nevertheless, because of the large amount of teacher available to help and guide us during this unit we were able to create our own research topics and experimentations, making this interdisciplinary unit very enjoyable.
My hypothesis for this experimentation was that the different varieties of shoes and their soles will affect the physical performance of a person while running, and considering the results I have gathered, I would say that my hypothesis is accurate.