Exercise lec 1 1
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There are two main types of exercise: aerobic and anaerobic. Aerobic exercise uses oxygen and involves steady, rhythmic movements like walking and biking. Anaerobic exercise does not use oxygen and involves quick, short bursts of activity like sprinting. The human body uses carbohydrates, fats, and proteins as fuel during exercise. Aerobic exercise affects many body systems including increasing heart rate and blood flow, improving lung function, and boosting the immune system. It can also help relieve stress and improve mood.
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The document provides information about physiology topics including the musculoskeletal, cardiovascular, and respiratory systems' responses to acute exercise. It also covers the three energy systems - phosphocreatine, lactic acid, and aerobic. The document includes definitions of key terms and describes how each system is involved in supplying energy during exercise of varying intensities and durations.
Exercise (2)
This document discusses the importance of exercise and provides guidelines for proper exercise. It defines different types of exercise and explains their benefits, including increased metabolism, improved cardiovascular efficiency, and enhanced muscle strength. The document outlines precautions like exercising on an empty stomach, avoiding vigorous exercise, and allowing for adequate rest. While exercise is generally beneficial, the summary notes it can be dangerous if done incorrectly, for certain medical conditions, or without proper rest and nutrition. Guidelines are provided for safe and effective exercise.
effect of ex on various systems , adaptations.pptx
Regular physical activity can help maintain body composition and cardiovascular health in adolescents. A study compared anthropometric measures, body composition, blood pressure, and cardiorespiratory fitness between adolescent athletes and physically active non-athletes. No differences were found in anthropometric or body composition measures between groups. However, athletes had lower diastolic blood pressure and higher VO2 max, indicating regular training provides additional cardiovascular benefits. Lung function is also generally higher in adolescent athletes compared to non-athletes due to training effects. Moderate exercise boosts mucosal immunity by increasing IgA, while prolonged, intensive exercise or overtraining can suppress it.
EXERCISE PRESENTATION.pptx
This document discusses exercise and its effects on the body. It covers several topics:
1. It identifies four types of exercise and defines exercise.
2. It explains muscle metabolism during exercise, including the sources of energy and metabolic pathways used.
3. It describes the levels of various plasma hormones during exercise, such as insulin, glucagon, growth hormone, and catecholamines.
4. It discusses the respiratory, cardiovascular, and thermoregulatory responses that occur during exercise, including increases in oxygen consumption, ventilation, cardiac output, and blood flow to active muscles.
Aerobic and anaerobic training
The document discusses the three energy systems - aerobic, anaerobic alactic (phosphate), and anaerobic lactic. The aerobic system produces energy through oxygen-dependent breakdown of carbohydrates and fats. It is used for endurance activities lasting more than 2 minutes. The phosphate and lactic systems produce energy without oxygen and are used for short bursts of intense activity lasting 10-90 seconds. Different training methods like intervals are needed to improve each system.
Fitness iip. l. rhea p. l. rheap. l. rheacardiovascul
The document provides information on cardiovascular fitness and designing a FITT (Frequency, Intensity, Time, Type) exercise plan. It states that for cardiovascular fitness, exercise should be performed 3-5 times per week. Intensity should be at 70-85% of maximum heart rate. Time spent exercising should be a minimum of 20 minutes. The type of exercise should use large muscle groups in continuous, rhythmic movements like running, swimming, or cycling. The document emphasizes individualizing the FITT plan based on a person's current cardiovascular fitness level and test results.
F.I.T.T. Principles and METs
The document discusses cardiovascular exercise and provides guidelines on frequency, intensity, time and type (F.I.T.T.) principles for both cardio and strength training. It outlines benefits of cardio like reduced risk of mortality and benefits of strength training like increased muscle mass. Target heart rate ranges and signs that exercise intensity should be reduced are also mentioned. Flexibility guidelines and definitions of METs are briefly covered.
Chapter 11
Physical fitness provides important health benefits by reducing the risk of chronic diseases like heart disease, stroke, and diabetes. Regular exercise helps improve cardiorespiratory fitness, muscular strength and endurance, flexibility, and body composition. The key components of a physical fitness program include aerobic exercise for at least 30 minutes three times per week as well as strength and flexibility training. Maintaining physical fitness throughout one's life span promotes health and independent living.
Chapter 11
Physical fitness provides important health benefits by reducing the risk of chronic diseases like heart disease, stroke, and diabetes. Regular exercise helps improve cardiorespiratory fitness, muscular strength and endurance, flexibility, and body composition. The key components of a healthy fitness program include aerobic exercise for at least 30 minutes three times per week as well as strength and flexibility training. Maintaining physical fitness throughout one's life span promotes overall health and well-being.
PEShare.co.uk Shared Resource
The document provides information about physical education, fitness, health, exercise, and the body systems involved in physical activity. It defines key terms like health, fitness, exercise, and performance. It describes the components of health-related and skill-related fitness. It also outlines principles of training, methods of training, warm-up and cool-down procedures, and effects of exercise on the body systems. Finally, it discusses nutrition, drugs in sport, injuries, and first aid procedures.
fatigue and recovery
Fatigue during exercise is caused by multiple factors including fuel depletion, accumulation of metabolic by-products, and neuromuscular events. Specifically, fatigue results from the depletion of ATP and phosphocreatine stores as well as glycogen. The buildup of lactic acid and other products like inorganic phosphate and ADP also contribute to muscle fatigue by interfering with muscle contraction. Elevated body temperature from exercise can further increase fatigue. Recovery methods aim to replenish energy stores and remove waste products through rest, active recovery, hydrotherapies, massage, and other techniques.
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Exercise lec 1 1
- 8. How & Where ATP is Produced Energy pathway Glucose + Oxygen = A TP O 2 O 2 O 2 O 2 O 2
- 9. What Fuels are Burned
Editor's Notes
- Improve cardiovascular system with this method Oxygen used as fuel
- Not generally recommended for those with high BP
- The human body is a machine…it needs fuel to run & like a machine it creates byproducts. Oxygen also considered a necessary fuel 40% to heat to keep our body temp around 98.6
- Everything ingested for fuel utilization is broken down into Glucose (blood sugar). There are glucose stores in the muscle fibers as well as in the blood. When oxygen is brought in by the blood the energy pathways in the muscle fibers can create ATP. This is what allows you to continue to exercise. When your glucose stores become depleted or the oxygen supply does not meet the demand you will fatigue.
- - @ beginning of exercise carbs are being burned to create ATP (warm-up) The longer you exercise (after about 5-10 minutes +) your oxygen intake increases and you are able to burn fats as well as carbs - Proteins are used as a last resort energy source. Their primary role is for muscle rebuilding.
- Like a machine your body gives off by products. The first 3 are constant byproducts that will never change. 2) evaporation, or the conversion of a liquid (sweat) to a gas, becomes the body's only legitimate defense against overheating. Millions of sweat glands on the surface of the skin secrete large amounts of liquid, which when evaporated, help to cool the skin, which in turn cools the blood and ultimately the body.
- The oxygen is not being efficiently used in the muscles…you can only take in a certain amount of oxygen and that can not be changed. Nitric oxide is released and allows vessels to dilate.
- Normal EF – 55%, you need some left over in the ventricle so it does not close up Heart becomes more conditioned…can pump out just as much or more with less beats.
- 220-age….doesn’t work with cardiac patients b/c of meds Skeletal muscles will dictate how hard the heart is working…as they demand more oxygen (from the blood) they signal the heart to work harder