Distance Running Positive Body

You may list, as students report out, the physiological changes to the respiratory, cardiovascular, neuromuscular, and urinary systems expected during strenuous exercise and as noted in the case of the cyclist, Joe. Students will respond with answers suggesting increases in heart rate, respiration, sweating and muscle fatigue, as well as muscle soreness as normal. However, in

Heart rate quickens – more blood (oxygen and nutrients) is needed for running or fighting without stopping.

Homeostatic is all about balance so when you begin to exercise, you need more oxygen. The harder you breathe the more energy it takes to replace it. Your body temperature while exercising also increases; typically it creates too much heat so your body has to figure out a way to release the heat so it doesn't become dangerous. This is done by sweating

Exercise increases heart rate by a process of sympathetic autonomic stimulation. Sympathetic (adrenergic) nerves increase the excitability of the sino-atrial node and reduce the P-R interval .As exercise continues, the physiological changes in the body are continuously monitored by a number of physiological systems and the balance of activity of the sympathetic system (speeding up) and the parasympathetic system (slowing down) is constantly adjusted. When exercise is over, the heart rate does not drop immediately as the body has to undergo a period of re adaption to return to the resting state.

Why does heart rate increase from lying down to standing and again when the participants start to exercise?

The body will respond to an exercise stress in one of three ways and there may be primary and secondary damage to the tissues as a result of exercise stress. The three responses the body will take to an exercise stress are, the tissues may adapt to the stress and no damage occurs, the tissues may become injured, or the tissues will die. In athletics, athletes often stress their bodies to the point of tissue injury and tissue death.

Heart rate anticipatory response – this is where the heart rate starts to automatically increase before you start to exercise. The heart rate is able to increase automatically by chemical hormones, the hormones are adrenaline and noradrenaline. These hormones are found inside the brain. The reason the heart rate increase before exercise is because it prepares the muscles for exercise, the reason it prepares the muscles for exercise is because by the heart rate increase the more oxygen is getting to the muscles there fore they will not be needing a such a large oxygen supply all at once. It doesn’t only supply oxygen it supply’s nutrients, the supply of nutrients also provides energy and helps to repair the muscles after exercise. By the heart rate starting to increase gives the heart a head to start pumping hard this enables the heart to not have as much stress on it.

Now, is the final stage, which is the exhaustion stage. In an instant, my body has reacted and was prepared to quicken my pace, build up my strides run even faster. I speed up and dash for the finishing line. The moment I pass the finishing line, I was relieved that my competitor did not manage to overtake me. My response starts to restore my homeostasis. The initial stress response burns out. At this stage, my energy has been drained out due to ongoing stress.

When running, two feel good chemicals that are ejected into the brain called: Endorphins and Endocannabinoids. These chemicals make you happier and reduce risk of sadness and depression, this is why running is a great way to end a bad day (Fetters). Not only does running have many mind and mood benefits, it also has many other health benefits as well. For example, It's good for a person's muscles, brain, and even heart. The two main muscles that running helps are the core and the legs, and in some cases even knees. ¨A Medicine and Science in Sports and Exercise study of nearly 100,000 runners found that runners are half as likely to get knee osteoarthritis than people who walk. Even running a short distance in a longer time frame, gives the same benefits that every runner tends to receive and more than the average walker¨, (Fetters). There are also two psychological benefits as well, one is mood improvement and the other is long-term self esteem improvement. Also, running is a great way to encourage creativity. Some runners have expressed that they get their best ideas when they are on a run (Harkins). There are so many more benefits that you can get from the act of running, including weight loss, immune system boosts, increase in bone mass, increase in lung function and the strengthening of the heart, which ends up reducing the risk of heart

To maintain effectiveness of muscle and bone activity, the effects of on the musculoskeletal system are the greatest benefits a person can ask for.

Stress Is the body’s way of responding to the hectic lives most of us live, whether good or bad. The body releases chemicals into the bloodstream, which creates a rush of energy and strength If an individual is feeling stressed. This energy can prove useful if an individual is in physical danger. Because it enables a person’s survival instinct kicks in; it is often described as ‘fight or flight.’ In addition, stress can also have a negative effect on the body, for example: suffering from stress and leaving it unchecked can contribute to health problems, such as high blood pressure, heart disease, obesity, and diabetes.

The final training method performed for the day was a fartlek exercise. Each repetition was comprised of a 40 second period of full intensity with a 20 second period of slow jogging given as rest. This was repeated three times to complete a full set. It was noted in my training diary that this was a fault due to the work to rest ratio set. Despite my aerobic capacity being deemed ‘excellent’, it was not practical to allow such a higher work than rest. This is because of the training principle ‘progressive overload’ which implies that “the load needs to be slowly increased as we become accustomed to the existing level of resistance to bring about further improvements.” This suggests that training loads should become more intense over a period of time, not increased too abruptly or with too much intensity. As the body has not been given time to adapt to this high training intensity of 2:1, it could lead to the possibility of injury. Implications of injury occurring may lead to fitness levels either plateauing or decreasing. This is due to the training principle ‘reversibility’ which states that “fitness improvements will be lost as training

I predict that during exercise the heart and respiratory rate (RR) will increase depending on the intensity of exercise and the resting rates will be restored soon after exercise has stopped. I believe that the changes are caused by the increased need for oxygen and energy in muscles as they have to contract faster during exercise. When the exercise is finished the heart and ventilation rates will gradually decrease back to the resting rates as the muscles’ need for oxygen and energy will be smaller than during exercise.

Stress is always fraught in life. Having a stress free life is impossible, but having a stress free day is possible through running. The calming noises of ambient sounds of nature and the “pitter patter” of one’s footsteps seem to have a calming effect. I have had days where my stress has driven me over the edge, and there is only one way I can get rid of it, running. Anger and stress fuel me as I race out the door and release it throughout the next hour. My heart pumps rapidly as I take off down the road. My lungs find a rhythm of breathing and I can feel the anger slowly leaving my body like a pulse from each slap of a foot. According to howtobefit.com, “After 20 minutes of exercise the brain starts releasing epinephrine and endorphins into the system, which lower tension and help stress stabilization.” So for only twenty minutes a day one can begin to relieve stress from something that can usually cause stress.

Stress is not only affected in the work place and at home, it is also affected during sports. There is a ton of pressure in many high school sports especially individual sports. Stress is the body’s way of