Discuss the need for water in maintaining physical performance
What will be an ideal response?
Endurance athletes can easily lose 1.5 liters or more of fluid during each hour of activity. To prepare for fluid losses, a person must hydrate before activity; to replace fluid losses, the person must rehydrate during and after activity. Even then, in hot weather, the GI tract may not be able to absorb enough water fast enough to keep up with sweat losses, and some degree of dehydration may be inevitable. Athletes who know their body's hourly sweat rate can strive to replace the total amount of fluid lost during activity to prevent dehydration.
Athletes who are preparing for competition are often advised to drink extra fluids in the days immediately before the event, especially if they are still training. The extra water is not stored in the body, but drinking extra water ensures maximum hydration at the start of the event. Full hydration is imperative for every athlete both in training and in competition. The athlete who arrives at an event even slightly dehydrated begins with a disadvantage.
Time Recommended Intake
>4 hours before activity 1 oz/10 lb
2 hours before activity, if heavy sweating is expected Add 0.6 oz/10 lb
Every 15 min during activity Drink enough to minimize loss of body weight, but don't drink too much
After activity >2 cups for each pound of body weight lost
You might also like to view...
Patients undergoing severe metabolic stress may develop hyperglycemia, which is a common complication associated with TPN
Indicate whether the statement is true or false
Katherine is in her 7th month of pregnancy. Her diet is poor because she rarely pays attention to her food choices, and she eats a limited variety of foods that she likes. Katherine was described as "undernourished" by her physician. Based on this information, Katherine is likely to
A. deliver a baby with type 1 diabetes. B. give birth to a baby suffering from eclampsia. C. deliver a low-birth-weight baby. D. give birth at least two weeks later than expected.
Which of the following occurs during weight loss?
A) Adipocytes turn into lean body mass. B) The number of adipocytes remains constant. C) There is a decrease in the number of adipocytes. D) Adipocytes break down into smaller cells.
During the double-blind, placebo-controlled food challenge, _____
a. only the care provider knows whether a suspected offending food or a placebo is being tested b. only the patient knows whether a suspected offending food or a placebo is being tested c. neither the patient nor the care provider knows whether a suspected offending food or a placebo is being tested d. both the patient and the care provider know whether a suspected offending food or a placebo is being tested e. medical supervision is not needed