What Goes On for your Body During Exercise

 

What Happens To Your Body During Exercise || The Workout Facts You Must Know!

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What Happens to Your Body During Exercise. You can feel the changes as soon as you take your first running step onto the pavement. Your heart pounds, your muscles tighten up, your breath feels shallow.

Fortunately, that feeling doesn’t last for long. One of the key health benefits of exercise is that it helps normalize your glucose, insulin, and leptin levels by optimizing insulin/leptin receptor sensitivity. This is perhaps the most important factor for optimizing your overall health and preventing chronic disease. As soon as you start exercising your body will respond by stimulating and inhibiting physiological processes that will allow you to exercise more efficiently. For example, your cardio-respiratory system increases its activity above what it would be at rest, whereas the digestive system slows right down.

When you exercise, your body releases chemicals such as dopamine (pronounced doh-pa-meen) and endorphins (en-door-fins) in your brain that make you feel happy. Not only is your brain dumping out feel-good chemicals, but exercise also helps your brain get rid of chemicals that make you feel stressed and anxious. Whether you’re a 20-year-old body builder, or a 70-year-old retiree, exercise particularly resistance exercise continues to play an important role in your muscle health. The benefits of working out are due to the direct impact that physical activities have on your muscle tissue, especially during.

What happens to body fat when you exercise? Your muscles first burn through stored glycogen for energy. “After about 30 to 60 minutes of aerobic exercise, your body. Exercising makes the body pump more blood to the muscles.

This will increases the blood flow, which is beneficial for your brain. The minute you start exercising, your brain cells will function at a higher level. The increased blood flow to your brain will make you more. To make this happen, your body must supply oxygen to the muscles and eliminate the waste products and heat.

The more strenuous the exercise, the greater the demands of working muscle. If these needs are not met, then exercise will cease that is, you become exhausted and. Exercise improves oxygen flow to the brain. It also helps the body release hormones that assist in brain cell growth. Additionally, it helps the brain with both learning and memory capabilities. During the first 15 minutes of exercise, the body relies mainly on blood glucose or muscle glycogen (which is converted back into glucose) for fuel.

As exercise continues, the body starts re-converting liver glycogen into glucose. After 30 minutes, the body starts to rely more on body fat.

List of related literature:

This phase is followed by a plateau (during light exercise) or a much more gradual increase in respiration (during heavy exercise) that results from chemical changes in the arterial blood resulting from exercise metabolism.

“Physiology of Sport and Exercise” by W. Larry Kenney, Jack H. Wilmore, David L. Costill
from Physiology of Sport and Exercise
by W. Larry Kenney, Jack H. Wilmore, David L. Costill
Human Kinetics, Incorporated, 2019

This absence of oxygen at the onset of exercise (oxygen deficit) leads to increased respiration at the end of exercise (EPOC) as the body tries to make up for the oxygen that wasn’t initially available.

“Sports Nutrition for Health Professionals” by Natalie Digate Muth, Michelle Murphy Zive
from Sports Nutrition for Health Professionals
by Natalie Digate Muth, Michelle Murphy Zive
F.A. Davis Company, 2019

After the initial few minutes of moderateintensity exercise—and after the cardiovascular and respiratory adjustments—exercising muscle takes up and oxidizes blood-borne glucose and simultaneously diminishes its release of lactic acid.

“Medical Physiology, 2e Updated Edition E-Book: with STUDENT CONSULT Online Access” by Walter F. Boron, Emile L. Boulpaep
from Medical Physiology, 2e Updated Edition E-Book: with STUDENT CONSULT Online Access
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Elsevier Health Sciences, 2012

During exercise, the muscles require additional energy to generate force or to do work, the heart has to work harder to increase blood supply, the respiratory muscles face an increased demand for moving air in and out of the lungs, and the metabolic rate

“Strength and Conditioning: Biological Principles and Practical Applications” by Marco Cardinale, Robert Newton, Kazunori Nosaka
from Strength and Conditioning: Biological Principles and Practical Applications
by Marco Cardinale, Robert Newton, Kazunori Nosaka
Wiley, 2011

If a moderate level of exercise continues to use the same muscles, some of the partially processed glucose is usefully consumed as increased blood flow brings more oxygen.

“Effective Cycling” by John Forester
from Effective Cycling
by John Forester
MIT Press, 1993

During strenuous exercise, the muscles do not get enough oxygen and in the absence of enough oxygen, there is anaerobic breakdown of glucose into lactic acid.

“Oswaal Gujarat GSEB NCERT Solutions (Textbook + Exemplar) Class 11 Biology Chapterwise & Topicwise (For March 2020 Exam)” by Oswaal Editorial Board
from Oswaal Gujarat GSEB NCERT Solutions (Textbook + Exemplar) Class 11 Biology Chapterwise & Topicwise (For March 2020 Exam)
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At certain times in muscles, especially during exercise when glucose consumed is much more than the amount of oxygen available, a partial oxidation of glucose to lactate occurs (glycolysis) ; the lactate so produced is largely disposed of by other tissues, mainly liver.

“Text Book of Biochemistry” by Dr. G. R. Agarwal, Dr. O. P. Agarwal, Dr. (Mrs) Kiran Agarwal
from Text Book of Biochemistry
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Krishna Prakashan,

Aerobic exercise is initially fueled by the glucose molecules stored as glycogen in the muscles themselves, but after a few minutes, the muscles depend more and more on free fatty acids released into the blood from adipose (fat) tissue.

“Karp's Cell Biology” by Gerald Karp, Janet Iwasa, Wallace Marshall
from Karp’s Cell Biology
by Gerald Karp, Janet Iwasa, Wallace Marshall
Wiley, 2018

During the first 20 minutes of moderate exercise, glucose from the blood and glycogen from the muscles are used as the fuel for aerobic respiration.

“Concepts in Biology' 2007 Ed.2007 Edition” by Enger, Eldon Et Al
from Concepts in Biology’ 2007 Ed.2007 Edition
by Enger, Eldon Et Al
Rex Bookstore, Inc.,

During a brief period (10 seconds) of intense activity, the body responds by depleting local reserves of oxygen and sources of energy stored in the muscles, thus creating a deficit of oxygen Anaerobic power that must eventually be replenished.

“Life Span Motor Development” by Kathleen Haywood, Kathleen M. Haywood, Nancy Getchell
from Life Span Motor Development
by Kathleen Haywood, Kathleen M. Haywood, Nancy Getchell
Human Kinetics, 2019

Alexia Lewis RD

Registered Dietitian Nutritionist and Certified Heath Coach who believes life is better with science, humor, and beautiful, delicious, healthy food.

[email protected]

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9 comments

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  • Simply exercising 5 times a week completely changed me..from a loser that used to play video games in his 20s..that failed highschool and that lived with his mom to now being in the armed forces..bein happy motivated, having goals i wanna reach. People have no idea how much few minutea of workout can chage you mentally..from depressed to happy from sadness to joy..we all tent to search for meds and motivational gurus to fix our lives..when the way to strength and happiness comes from a half hour of workout.

  • Believe me guys excerise is too good for u
    Within a week i saw my skin glowing, pimples Disappeared and eventually I lost weight��
    So u a should try exercising and skipping rope

  • Comment section:
    0% that is educational
    100% voice
    0.000000001 (because I don’t care in this world) Comment section:
    0% that is educational
    100% voice
    0.000000001 (because I don’t care in this world)

  • why is everyone obsessed with losing weight? i’m here trying and trying to add more weight while y’all want to be 40kg skinny ass twigs

  • I think you should specify what you mean by “exercise” — that is, level/intensity of the exercise. Me, I am basically dead and lack any energy after a workout, and I’m pretty sure that’s because I pour all that energy into intense 2-hr-long workouts (5 days a week).
    Seriously, going to the gym basically spells the end of the day for me. Once I get back home, it’s a matter of waiting for the clock to strike 11 so I can go to sleep.

  • Basically when u excersice blood goes around the body more faster so more oxyge is carried to the body cells for respiration.respiration produces energy but also makes car n dioxide so to get rid of itu need blood and oxygen

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    jk love you

  • I always feel like making some phone calls and answering emails after going to the gym. Like I want to get thing done. I notice my confidence level definitely goes up as well.

  • This gives me even more determination! I always wanted to do gymnastics, but my mom does not want me to! I am too “old” she says for a 14 year old girl. So I am self taught…Doing splits and stuffs isn’t being “flexible enough” for her!