A 165lb (75kg) athlete has an average daily intake of 450g of carbohydrate, 75g of protein, and 100g of fat. What percent of the total kilocalorie intake is carbohydrate? 60 Carbs: 450g × 4 = 1800 cal Protein: 75 × 4= 300 cal Fat: 100 × 9 = 900 cal Total calories = 3000 cal Percent of carbs: 1800÷3000 = .6 or 60?10lb (50kg) marathon runner started her pre-race taper and chose to carbohydrate load prior to the race. Approximately how many grams of carbohydrates should she consume per day? 500 50×8 = 400; 50×10=500 So answer will be between 400-500 grams The depletion of which of the following fuel sources may contribute to fatigue in prolonged aerobic endurance events AND repeated anaerobic exercise bouts? Muscle glycogen Which of the following is a characteristic of fast-twitch muscle fibers? High power output Which of the following activities places the LEAST metabolic demand on the phosophagen energy system? Cross-country skiing Which of the following is a dietary source of an incomplete protein? Legumes Performance decrements from dehydration among aerobic endurance athletes may begin to occur after the loss of what percentage of body mass? 3% Which of the following causes the largest increase in serum growth hormone concentration? A high-intensity resistance exercise session Which of the following is the MOST appropriate course of action if an eating disorder is suspected with an athlete? Refer the athlete to the team physician A 6 foot, 2 inch (188cm), 220 lb (100kg) college football player desires to gain muscle weight. Which of the following should be his first nutritional priority if his current 3,000 calories/day intake consists of 18% protein (1.4 g/kg), 55?rbohydrate (4.1 g/kg), and 27?t (0.9 g/kg)? Increase calories Which of the following structures of a sarcomere shrinks when a muscle fully contracts? H-zone Performance in which of the following events has been shown to be MOST enhanced by creatine supplementation? 100m (109yd) sprint Which of the following is the minimum recommended amount of fluid to drink and the timing of that fluid intake prior to an exercise session? 1 pint (0.5L)-2 hours before exercise Which of the following types of food is the best source of complete protein? Eggs A 115lb (61kg) softball player has an average daily nutrient intake of 325 grams of carbohydrate, 55 grams of protein, and 75 grams of fat. Approximately what percent of her total caloric intake is protein? 1025×4= 1300; 55×4= 220; 75×9= 675 Total cal= 2195 ÷ 220 = .1 = 10% Which of the following are the primary and secondary factors that MOST determine which energy system an athlete will predominately rely on during an exercise session? Primary: exercise intensity & secondary: exercise duration