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Fitness. Physical Activity, Nutrients, And Body Adaptations. Fitness. Fitness Sedentary Physical activity Exercise. Benefits Of Fitness. Restful sleep Nutritional health Optimal body composition Optimal bone density. Benefits Of Fitness.
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Fitness Physical Activity, Nutrients, And Body Adaptations
Fitness • Fitness • Sedentary • Physical activity • Exercise
Benefits Of Fitness • Restful sleep • Nutritional health • Optimal body composition • Optimal bone density
Benefits Of Fitness • Resistance to colds and other infectious diseases • Low risks of some types of cancers • Strong circulation and lung function
Benefits Of Fitness • Low risk of cardiovascular disease • Low risk of type 2 diabetes • Reduced risk of gallbladder disease in women
Benefits Of Fitness • Low incidence and severity of anxiety and depression • Strong self-image • Long life and high quality of life in the later years
Developing Fitness: • Guidelines for physical fitness • Type of activity • Frequency • Intensity • Duration
Developing Fitness • Flexibility • Muscle strength and endurance • Cardiorespiratory endurance
Developing Fitness • Conditioning • Training • Overload principle: >frequency >intensity >duration
Developing Fitness • Body’s response to physical activity: good and bad! • Hypertrophy vs. atrophy
Developing Fitness • Exercise • Warm-up and cool-down • Cautions on starting • Weight training
Cardiorespiratory Endurance • Aerobic activity • VO2 max-oxygen consumption! • Cardiorespiratory conditioning • Cardiac output-blood volume per heartbeat.
Besides strength, conditioned muscles also use O2 more efficiently and can burn fat longer! • Balanced fitness program
Anaerobic exercise ATP + Creatine Phosphate Usain Bolt: Sprinter/Distance Runner Aerobic exercise ATP from fat (if over 20-30 min.)
Glucose Use • Diet affects glycogen storage and use
Glucose Use • Intensity of activity affects glycogen use • Lactic acid • Duration of activity affects glycogen use
Glucose Use • Glucose depletion • Carbohydrate loading • Glucose during activity: when? Dana Torres: Olympic Athlete
Glucose Use • Glucose after activity • Training affects glycogen use Geoffrey Mutai: 2011 ING Marathon Champion, NYC.
Fat Use • Recommendations for endurance athletes • 20% - 30% of energy intake from fat • Dietary fat vs. body fat stores
Fat Use • Duration... • Intensity... • Training... • Bottom line...longer duration, slower pace=>fat loss!
Protein Use • Protein used in muscle building • Protein used as fuel • Diet affects protein use during activity
Protein Use • Intensity and duration of activity affect protein use during activity • Training affects protein use
Vitamins And Minerals • Supplements • Vitamin E
Vitamins And Minerals • Iron • Iron deficiency • Iron-deficiency anemia • Sports anemia • Iron recommendations for athletes
Fluids And Electrolytes • Fluid losses via sweat • Hyperthermia Heat stroke! • Hypothermia
Fluids And Electrolytes • Electrolyte losses and replacement • Hyponatremia
Fluids And Electrolytes • Poor beverage choices • Caffeine • Alcohol
Choosing A Diet • Water • Nutrient density • Carbohydrate • Protein
Choosing A Diet • Pregame meals
Choosing A Diet • Postgame meals: to eat or not? • Research: 30-60 minutes following exercise is ideal. • Longer duration between exercise and eating only slows recovery. • May hinder long term performance in some athletes. • G1, G2 or G3 anyone?