1 The Benefits of Physical Fitness Study Guide The five (5) components of physical fitness are body composition, cardiovascular endurance, flexibility, muscular strength, and muscular endurance. Everyone can improve and achieve optimal levels in these areas. Everyone can achieve optimal results in the fitness components. An active lifestyle provides many health benefits to participants in terms of emotional, physical, and mental. Physical activity strengthens your heart, muscles, and makes you feel good about yourself. This leads to confidence ion your abilities to try things and be successful in many areas of life. Lack of exercise and being overweight are two of the major health risks for people of all ages. BODY COMPOSITION: Refers to the amount of fat mass as compared to lean mass. Lean mass is composed of muscle, bones, organs, blood and body fluids, skin, and connective tissue. Some fat is necessary for life such as brain and nervous system function, hormones production and balance, and body temperature control. BODY MASS INDEX: (BMI) is the relationship of height and weight in terms of a ratio. It is the current rating scale used by the medical profession to assess healthy weight. Extra pounds lead to extra health risks. It is a mathematical formula in which BMI = weight (kilograms) divided by height (meters) squared. The equation looks like this BMI = kg/m2 . Underweight is generally meaning 10% under normal. Overweight is generally 10% over normal weight. Obese is 20% or more over normal weight. The following charts are mostly for adults but children can go online to assess their BMI. BODY MASS INDEX (BMI) ACCEPTANCE MEASURE 18.4 or Less Underweight 18.5 – 24.9 Normal 25.0 – 29.9 Overweight 30.0 – 34.9 Mildly Obese 35.0 – 39.9 Obese 40.0 and Greater Extremely Obese Denlinger Revised 2010-2011 2 The Benefits of Physical Fitness Study Guide To use this chart: Find your height in inches in the left column. Track the row to the right until you are at or near your weight in pounds. Then go vertical to the top row and you have your BMI. BMI 19 20 21 22 23 24 25 26 27 28 29 30 35 40 HT WT WT WT WT WT WT WT WT WT WT WT WT WT WT (in) (lbs) (lbs) (lbs) (lbs) (lbs) (lbs) (lbs) (lbs) (lbs) (lbs) (lbs) (lbs) (lbs) (lbs) 58 91 96 100 105 110 115 119 124 129 134 138 143 167 191 59 94 99 104 109 114 119 124 128 133 138 143 148 173 198 60 97 102 107 112 118 123 128 133 138 143 148 153 179 204 61 100 106 111 116 122 127 132 138 143 148 154 159 185 211 62 104 109 115 120 126 131 136 142 147 152 158 164 191 218 63 107 113 118 124 130 135 141 146 152 158 163 169 197 225 64 110 116 122 128 134 140 145 151 157 163 169 174 204 232 65 114 120 126 132 138 144 150 156 162 168 174 180 210 240 66 118 124 130 136 142 148 155 161 168 174 181 187 217 247 67 121 127 134 140 146 153 159 166 173 180 186 193 223 255 68 125 131 138 144 151 158 164 171 177 184 190 197 230 262 69 128 135 142 149 155 162 169 176 182 189 196 203 236 270 70 132 139 146 153 160 167 174 181 188 195 202 207 243 278 71 136 143 150 157 165 172 179 186 193 200 208 215 250 286 72 140 147 154 162 169 177 184 191 199 206 213 221 258 294 73 144 151 159 166 174 182 189 197 204 212 219 227 265 302 74 148 155 163 171 179 186 194 202 210 218 225 233 272 311 75 152 160 168 176 184 192 200 208 216 224 232 240 279 319 76 156 164 172 180 189 197 205 213 221 230 238 246 287 328 Denlinger Revised 2010-2011 The Benefits of Physical Fitness Study Guide 3 CARDIOVASCULAR ENDURANCE: “Cardi” means heart, “o” is a connecting letter, “vascular” means vessels as in blood vessels, and “endurance” means over time or long lasting. Cardio-training is also called “aerobic” training. Think of the word “aer” “o” “bic” mean “with air” and indicates that you must be breathing or exchanging oxygen and carbon dioxide. On the other hand, “an” “a” “aer” “o” “bic” (anaerobic) means “without air”. Some Benefits of improved cardiovascular endurance are: 1. 2. 3. 4. 5. 6. Improved heart functions Helps to control blood pressure Reduced chance of heart disease Reduced body fat Improved quality of sleep Feelings of relaxation 7. Firmer muscle tone 8. Increased feeling of accomplishment 9. Reduced anxiety 10. Better performance on timed exercise tests FLEXIBILITY: The ability to move a joint through its full range of motion. Benefits of flexibly include: 1. Reduced risk of injury 2. Decreased aches and pains 3. Improved athletic performance 4. Makes you feel good 5. Allows your body to move more easily and freely MUSCLE STRENGTH: The one-time use of a maximum force with a muscle. MUSCLE ENDURANCE: The use of the muscle over time but not with maximum force, such as performing many repetitions with a lighter weight. Benefits of muscular fitness include : 1. Weight control - Increased metabolic rate (burns more energy all the time) 2. Improved appearance 3. Increased feeling of accomplishment 4. Increased energy level 5. Improved athletic performance Increased motor performance 6. Injury prevention 7. Decrease in cholesterol 8. Better bone strength/bone density 9. Increased capacity for work Denlinger Revised 2010-2011 The Benefits of Physical Fitness Study Guide 4 DESIGNING YOUR PROGRAM: PRINCIPLES of TRAINING: OVERLOAD means that you must work at an intensity level that challenges you beyond your normal everyday situation. You are increasing the load on your system over the normal status quo. Usually the increase is 5% of the previous workload. PROGRESSION principle is the stepwise overloading during the course of the training program over time. An example would be when we begin with 3 pushups the first week, increasing it to 5 pushups the following week, 8 the next week, and so on and so on. SPECIFICITY principle is training in the areas or type of activity you want to improve. Such as being a better basketball shooter means you practice form shooting and shooting from all positions on the court. You don’t train in throwing a baseball to a target at various distances to be a better basketball shooter. F.I.T.T. = F = Frequency (how often you exercise) I = Intensity (how hard you are working when exercising) T = Time (how long is spent exercising?) T = Type (what type of exercise is being done?) Cardiovascular Guidelines: • • • • Frequency: 3-5 times a week Intensity: 55-90% of maximal heart rate Time: 20-60 minutes per session Type: walking, jogging, running, bicycling, swimming, stair climbing, dancing are but a few examples INTENSITY: It is extremely important that you exercise at a level that challenges you or develops you to be better. The two most common measures of intensity for Denlinger Revised 2010-2011 The Benefits of Physical Fitness Study Guide 5 cardiovascular endurance are the maximum heart rate, training heart rate, and an easy estimation called the “talk test”. Talk Test: If you can talk while aerobically exercising, you are probably at the lower end of the intensity range (55-65%). If you can say of few words but not continuously, you are at mid-range intensity (66-75%). If it is difficult to talk while exercising, then you are the higher end of the range (76-90%). 90% is used primarily in Highly Fit or World Class athletes and then in short bursts only. You must be aware of your starting point for training and then increase the intensity slowly as you develop stamina. Maximum Heart Rate: a formula that sets a top or maximal heart rate (beats per minute). This is the basis for determining a training or target heart rate. Below are the equations and example solutions for a certain given percentage. Max. Heart Rate (MHR) = 220 – age. Training or Target Heart Rate (THR) = 55% - 90% MHR Beginners’ level = .55 * MHR Intermediates’ level = .70 * MHR Advance level = .90 * MHR The athlete in training is 17 years of age. The solutions would be: MHR = 220 – 17 = 203 BTHR = .55 * 203 = 111.65 ITHR = .70 * 203 = 142.1 ATHR = .9 * 203 = 182.7 112 beats per minute 142. beats per minute 183 beats per minute Strength Training Guidelines: • • • • Frequency: 2-3 sessions per week Intensity: perform each set/repetitions until muscle failure or near muscle fatigue Time: 1-3 sets of 8 - 20 repetitions per set Type: weight lifting, functional training (sit-ups, pushups, pull-ups, squats, lunges, etc), or resistance bands Denlinger Revised 2010-2011 The Benefits of Physical Fitness Study Guide 6 General Workout Notes: 1. WARM-Up: Always take 3-5 minutes of general body warm-up in a cardiovascular manner to get the body and mind prepared for the workout. 2. Exercise order is typically large to small muscle groups 3. You can break up your routine between body sections such as arms, chest, back, legs, and core. Speed versus endurance training. Skill versus strategy. 4. Always exhale when going AGAINST gravity. NEVER EVER hold your breath. 5. TEMPO: always use a rhythm or tempo to your lifting. Move the weight in a slow controlled manner. 6. Concentric and Eccentric lifting: Concentric contraction occurs when the muscle contracts and results in shortening of the muscle. Also known as a positive lift. A negative or Eccentric contraction occurs when the muscle contracts while being lengthened. It is the working against gravity by slowing the pull to the center of the end by gravity = slowing down the rate of descent. 7. Regularity: you must workout consistently to benefit from strength training. 8. COOL-Down: always take 5-10 minutes to work at a low intensity of the activity you are completing. Follow up with some static (No bounce) stretching of the major muscle groups. Denlinger Revised 2010-2011