This video shows Dr. Evan Matthews explaining how exercise intensity impacts the proportion of metabolic substrate that is carbohydrates vs fats. Also described in this video is why “fat burning zone” is not that useful. This video is part of a series of videos that will cover exercise metabolism. The playlist to that series is listed below.
Exercise Metabolism Playlist
Exercise Physiology Teaching Current Edition Playlist
Learn the basics of bioenergetics by watching my Bioenergetics Playlist
Videos in the Exercise Metabolism Playlist to check out:
Oxygen Deficit and Excess Post Exercise Oxygen Consumption EPOC – VO2 Kinetics
Exercise Duration and the Primary Energy Pathway – Exercise Metabolic Transitions
Exercise Intensity and Fuel Selection – Carbohydrates vs Fats
Aerobic Capacity (VO2max) and Anaerobic Thresholds
Lactate Removal and Use – Delayed Onset of Muscle Soreness
Measuring Energy Expenditure of the Body – Direct and Indirect Calorimetry and Oxygen Consumption
Making Sense of Oxygen Consumption Terminology
Respiratory Exchange Ratio (RER) Explained
Link to Dr. Evan Matthews website.
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Most people who want to get into better shape believe carbs are unhealthy. It is sad to see how many people believe that a carb-cutting diet is a path to rapid weight loss. Carbs are what the body needs for energy. Without carbs, you won’t be able to burn fat, and you’ll be depriving your body of the minerals and vitamins it requires to function properly. A balanced diet is all it takes to lose weight easily, quickly, and correctly. This video will discuss what are carbohydrates, and what types are best for your overall well-being.
What Are Carbs?
Carbs are the fiber, sugars, and starches contained in the food you eat. Much like fat and protein, carbohydrates are a macronutrient. Macronutrients are what gives the body energy, with carbs being the primary source. We must eat protein, fat, and carbs since our bodies can’t produce macronutrients on its own.
There are two types of carbohydrates: complex carbs and simple carbs.
Complex carbohydrates take a lengthy duration to process in the body. They help with the prolonged release of energy due to high amounts of nutrients and vitamins. Complex carbohydrates are beneficial when you’re trying to maintain a healthy lifestyle, as they provide the body with extra nutrition to use and last longer as a source of energy. Several examples of complex carbohydrates are brown rice, whole grains, wheat, oats, starchy vegetables, beans, peas, and lentils. Any kind of food containing these ingredients is much better for your body than their processed equivalent.
Simple carbohydrates are akin to processed food. They are regarded as simple sugars. Simple-carbs get separated in the body very fast and are used as an immediate energy source that burns out faster. They can be detrimental to the body when regularly consumed since they are comprised of refined sugars with minimal vitamins or nutrients. Some examples of simple carbohydrates include honey, sugar, fruit juices, milk, candy, soda, and biscuits.
Now that you know the difference between complex and simple carbs, let’s address the truly bad carbohydrates: refined-carbs.
If you are attempting to lose weight, you must reduce your consumption of refined carbohydrates. Refined carbs are the main cause of obesity and consist of high levels of fats, calories, and sugars. Processed or refined carbohydrates are germ and bran-less grains, and as such, have decreased nutrient content.
Refined carbs are found in foods made with white flour (cereals, pizza, pasta, bread, etc.) as well as white rice. Sugary beverages and potato chips are also high in refined carbs. Refined sugar is regarded as a refined carbohydrate. Therefore, ice creams, cookies, cakes, and donuts
are the most typical refined carb sources.
Integrate fresh vegetables, whole grains, fruits, and foods with fibre in your meals. They contain the proper carbs you should be feeding your body. Always choose the good sources of carbs, the good carbs can help you instead of the ones that will hurt you.
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Veggies, fruits, whole grains and dairy products are some of the best sources of healthy carbs.
View full lesson: http://ed.ted.com/lessons/how-do-carbohydrates-impact-your-health-richard-j-wood
The things we eat and drink on a daily basis can impact our health in big ways. Too many carbohydrates, for instance, can lead to insulin resistance, which is a major contributor to cardiovascular disease and Type 2 Diabetes. But what are carbs, exactly? And what do they do to our bodies? Richard J. Wood explains.
Lesson by Richard J. Wood, animation by Qa’ed Mai.
Watch the next lesson: https://www.khanacademy.org/test-prep/mcat/chemical-processes/carbohydrates-5d/v/carbohydrates-naming-and-classification?utm_source=YT&utm_medium=Desc&utm_campaign=mcat
Missed the previous lesson? https://www.khanacademy.org/test-prep/mcat/chemical-processes/carbohydrates-5d/v/carbohydrates-cyclic-structures-and-anomers?utm_source=YT&utm_medium=Desc&utm_campaign=mcat
MCAT on Khan Academy: Go ahead and practice some passage-based questions!
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This biology video tutorial provides a basic introduction into carbohydrates such as monosaccharides which include Glucose, Fructose, Galactose, and Ribose.
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It’s the night before the big game! You’re carbo-loading! Wait, what are carbs? Did you know that sugar is a carbohydrate? You didn’t?! Well, you’d better watch this, my friend. We will cover all the monosaccharides in their linear and cyclic form. That’ll get you up to speed. Now get some sleep! You’ll need to be rested if you’re going to beat those kids from Khan Academy in the morning.
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Pharmacological Lab Procedures: Benedict’s Test – Qualitative Test in Carbohydrates. KNUST OER 2012. CC:BY-NC. George Koffuor
The Benedict’s test procedure is demonstrated in this video. Benedict’s test distinguishes reducing sugars from non reducing sugars. At the end of this video lesson, students should be able to distinguish between reducing and non reducing sugars using the Benedict’s test, outline the test process and write a well balanced reaction equation for the test.
The full course module is available at http://web.knust.edu.gh/oer/pages/index.php?siteid=knustoer&page=find_materials&cou=38
This is licensed under a Creative Commons Attribution-Noncommercial 3.0 License http://creativecommons.org/licenses/by-nc/3.0/
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What are carbohydrates & sugars? Carbohydrates simple sugars as well as complex carbohydrates and provide us with calories, or energy. Find more videos at http://osms.it/more.
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