What two factors determine cardiac output, and how are they changed during exercise?
What will be an ideal response?
Heart rate and stroke volume determine cardiac output. Both increase as exercise intensity increases. Stroke volume
plateaus at about 40% of VO2max but heart rate increases in a linear fashion all the way to VO2max (maximal
exercise)
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Which of the following diet analysis programs allows you to create a personalized healthy
eating and physical activity plan? A) U.S. Department of Agriculture's Nutrient Database for Standard Reference B) MyDietAnalysis C) Mindfulness-Based Stress Reduction Program D) MyPlate Supertracker
Which of the following statements relative to the intake of carbohydrates and physical performance is FALSE?
A. If an individual has normal glycogen levels in the muscle and liver, carbohydrate feedings are usually not necessary if the exercise task is only about 30-60 minutes B. Carbohydrate intake prior to and during endurance exercise tasks lasting more than two hours may be helpful as a means to enhance performance C. If consumed during exercise, it takes approximately 60-90 minutes for the carbohydrate to find its way into the muscle and be used as an energy source D. Carbohydrate intake may help delay the onset of fatigue in prolonged exercise by either preventing the early onset of hypoglycemia or delaying the depletion of muscle glycogen levels E. The intake of concentrated sugar solutions may actually impair performance if it leads to osmosis of fluids into the intestines and precipitates gastrointestinal distress
Approximately what percentage of children have an "easy" temperament?
A. 10% B. 20% C. 25% D. 40% E. 15%
Amyotrophic lateral sclerosis, commonly known as _______________ disease, is a progressive neurological disease that affects the motor neurons of the nervous system
Fill in the blank(s) with correct word