Effects of physical activity on heart rate during exercise: resting heart rate, maintaining target heart rate, cool down. Heat illnesses associated with fluid loss. Participation in a variety of physical activities, including long term benefits Training principles of overload, progression and specificity. Identify Health-related Components Identify Skill-related Components Health-related problems associated with low physical activities Appropriate warm-up & cool-down techniques and reasons for using them Peer pressure Safety procedures when engaging in activities of fitness Preparing a log noting food intake, calories consumed & energy expended . 1. Find the radial pulse. This is also known as the pulse on the inside of the wrist. Use the pads of two fingers. Place these just below the wrist creases at the base of the thumb. Press lightly until you feel a pulse (blood pulsing under your fingers). If necessary, move fingers around until you feel the pulse. 2. Find the carotid pulse. To feel a pulse on the side of the neck, place two fingers, preferably your index and middle finger, in the hollow between the windpipe and the large muscle in the neck. Press lightly until you feel a pulse. HEAT CRAMPS: Heat cramps are the intermittent, involuntary spasm of muscles that occur in an individual who is physically active (for example, working or exercising) in hot or humid weather. They are often associated with dehydration. Heat cramps usually affect the major muscles that are being stressed in the hot environment. Most often these are the thigh and leg (quadriceps, hamstrings, gastrocnemius), the core muscles (abdominal wall and back) and the arm muscles (biceps, triceps). Cool down with water and seek shade. HEAT EXHAUSTION: Is a heat-related illness that can occur after you've been exposed to high temperatures for several days and have become dehydrated. Drink plenty of water and seek shade. There are two types of heat exhaustion: Water depletion. Signs include excessive thirst, weakness, headache, and loss of consciousness. Salt depletion. Signs include nausea and vomiting, frequent muscle cramps, and dizziness. Although heat exhaustion isn't as serious as heat stroke, it isn't something to be taken lightly. Without proper intervention, heat exhaustion can progress to heat stroke, which can damage the brain and other vital organs, and even cause death. Heat Stroke (Most Serious) Heat stroke is the most serious form of heat injury and is a medical emergency. If you suspect that someone has heat stroke -- also known as sunstroke -- you should call 911 immediately and render first aid until paramedics arrive. Heat stroke can kill or cause damage to the brain and other internal organs. Although heat stroke mainly affects people over age 50, it also takes a toll on healthy young athletes. Heat stroke often occurs as a progression from milder heatrelated illnesses such as heat cramps, heat syncope (fainting), and heat exhaustion. But it can strike even if you have no previous signs of heat injury. Overload is necessary in order to develop fitness in all exerciserelated fitness components: cardiorespiratory (aerobic) endurance, muscular strength, muscular endurance and flexibility. According to the principle of overload, a person must work (load) the body in a higher manner than normal in order to improve fitness. For improved cardiorespiratory endurance via walking, for example, this means walking faster or farther or more times a week than usual. Muscular strength and muscular endurance overload means contracting the body’s muscles for a longer period of time, or more frequently during the week, or adding weight to the number of repetitions performed. Flexibility improvements require stretching more often or holding individual stretches for longer periods of time, or stretching beyond the usual point of flexion or extension Overload is a relative term, not meaning the same for all people. A run around Green Lake may be overload for a beginning jogger, too much overload for a sedentary person, or not enough of an overload for an endurance runner. As a person’s fitness level improves, he or she will need to make adjustments to the exercise program if continued improvements are desired. That is, what used to be overload may no longer be sufficient. Frequency, Intensity, Type and Time (“FITT Principle”) dedicated toward the individual’s exercise program may need to be changed for continued fitness enhancement. The principle of specificity means only those body parts, muscles or systems involved in a workout will be the ones to experience training. For example, weight training the upper body will lead to improvements in arm, shoulder and back strength, but will probably not allow improvements in the body’s ability to perform squats or lunges—activities associated with lower body strength. Similarly, if a person swims four times a week to improve fitness, he or she will experience gains in cardiorespiratory (aerobic) endurance, but will not necessarily experience great flexibility benefits, needed to improve performance in yoga class. For example, if you wanted to improve your volleyball serve with the training principle of specificity: Your goal would be to serve an extra 20 serves per day. 1. 2. 3. 4. 5. Muscle Endurance Muscle Strength Body Composition Flexibility Cardiorespiratory Endurance My Mom Bakes Fruit Cake CRABS P 1. 2. 3. 4. 5. 6. C oordination R eaction Time A gility B alance S peed P ower Health Related Components Acronym: My Mom Bakes Fruit Cake) (M)uscular Endurance (long term)An activity such as swimming will work upper body strength and cardiorespiratory endurance along with muscular endurance where you work the muscles nonstop for a long period of time. (M)uscular Strength- Pushing against resistance with a maximum amount of weight. (Example Bench Press of maximum weight at 1 repetition.) (B)ody Composition- In physical fitness, body composition is used to describe the percentages of fat, bone, water and muscle in human bodies. Our body composition, as well as our weight, determines leanness. (F)lexibility- The ability to move a joint its full range of motion. (Example: Holding a static stretch for a period of time will help increase better flexibility) (C)ardiorespiratory Endurance (strong heart): Increasing oxygen intake (lungs and breathing) and increasing blood flow through activity will allow you to have a strong heart and good cardiorespiratory endurance. Examples: Running/Jogging, biking, rollerblading, swimming, etc. (C)oordination- the ability to use 2 or more body movements smoothly and at the same time. (Example would be speed stacking cups or hopscotch: using hand and eye coordination/ smoothly at the same time.) (R)eaction time- an action performed or a feeling experienced in response to a situation or event. (Example: Responding quickly to an object being thrown in your direction and having quick reflexes is an example of reaction time) (A)gility- Moving quickly from one direction to the other. (Example would be dribbling a soccer ball quickly from one cone to another back and forth using speed.) (B)alance- The ability to maintain and control your body in various positions and movements. (S)peed- The time it takes to move a certain distance. (Move quickly) (P)ower- The ability to combine strength and speed (explosiveness). Shot Put is a great example of using power! Another example is the Long Jump for the use of power! Reduce Your Risk of Cardiovascular Disease Heart disease and stroke are two of the leading causes of death in the United States. But following the Guidelines and getting at least 150 minutes a week (2 hours and 30 minutes) of moderate-intensity aerobic activity can put you at a lower risk for these diseases. You can reduce your risk even further with more physical activity. Regular physical activity can also lower your blood pressure and improve your cholesterol levels. Regular physical activity can reduce your risk of developing type 2 diabetes. Improve your quality of life: the more physical activity you do, the lower your risk of heart disease and the stronger your heart will become. Warm Up- Importance of a warm-up is to get your blood flowing and heart rate active. Muscles and joints need to be moving and warmed up before activity/exercise. NEVER STRETCH A COLD MUSCLE! Dynamic Warm-Up- is defined as a series of sport specific movements that are designed to prepare the muscles for performance and are performed in a safe and controlled fashion. To gain range of motion at your joints and fire up the muscles that you're going to use for that day’s workout, you need to do mobility and activation drills (dynamic warm up). Example would be knee huggers, glute kicks, high knees, hip flexor in and outs, arm swings, monster walks, etc. Static Stretch- is defined as elongating (stretching) a specific muscle/joint in a position for a period of time (15-30seconds) for flexibility and injury prevention. This should be done after a dynamic warm up and during the cool down process after a workout. (Never stretch a COLD muscle. It should always be WARM (warmed up/or activated)) Cool Down Process It’s important to slowly bring down the heart rate in high intensity workouts or activity. Following up with stratic stretching is important to help prevent injury as well. NEVER bend down or sit down immediately after the heart rate is super high from an intense workout/activity. Peers influence your life, even if you don't realize it, just by spending time with friends. You learn from them, and they learn from you. It's only human nature to listen to and learn from other people in your age group. Peers can have a positive influence on each other. Maybe another student in your science class taught you an easy way to remember the planets in the solar system or someone on the soccer team taught you a cool trick with the ball. You might admire a friend who is always a good sport and try to be more like him or her. Maybe you got others excited about your new favorite book, and now everyone's reading it. These are examples of how peers positively influence each other every day. Sometimes peers influence each other in negative ways. For example, a few kids in school might try to get you to cut class with them, your soccer friend might try to convince you to be mean to another player and never pass her the ball. Friends are a big influence on peer pressure and have a positive impact on your choices in life. Concept of Spatial Awareness: Arm Length Apart Safety techniques while staying active Always know your surroundings. Use appropriate equipment when necessary. Safe learning environment Calories: A unit of Energy Calorie intake and energy expenditure (burning calories) Food log Reading food labels Food value: good or bad KEY POINTS Energy is needed by the body to stay alive, grow, keep warm and move around. Energy is provided by food and drink. It comes from the fat, carbohydrate, and protein Energy requirements vary from one individual to the next, depending on factors such as age, sex, body composition and physical activity level. Energy expenditure is the sum of the amount of energy expended while at complete rest, the energy required to digest and absorb food and the energy expended in physical activity. To maintain body weight, it is necessary to balance the energy derived from food with that expended in physical activity. To lose weight, energy expenditure must exceed intake, and to gain weight, energy intake must exceed expenditure.
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