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Body Composition Questions. Why is exercise an essential part of fat-loss programs? Increases E expenditure. Creates a negative E balance. Retains muscle tissue. Increases use of fat as a fuel. Hormone secretion. Body Composition Questions.

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Body composition questions
Body Composition Questions

  • Why is exercise an essential part of fat-loss programs?

  • Increases E expenditure.

  • Creates a negative E balance.

  • Retains muscle tissue.

  • Increases use of fat as a fuel.

  • Hormone secretion.

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Body Composition Questions

  • How does improved CV fitness help control body composition?

  • Can accomplish more work.

  • Use fat as a primary fuel source.

Body composition questions2
Body Composition Questions

  • What effect does exercise have on the resting metabolic rate?

  • Increases RMR.

  • Increases post-exercise MR.

Body composition questions3
Body Composition Questions

  • Is aerobic exercise better than resistance exercise for fat loss?

  • Resistance training may be as effective as aerobic training in fat-loss programs.

  • Both should make-up a fat-loss program.

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Body Composition Questions

  • Is high-intensity exercise better than low-intensity exercise for fat loss?

  • The duration of the exercise and total distance is much more important than the speed (intensity) of exercise for maximizing the energy expenditure.

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Body Composition Questions

  • Are spot reduction exercises effective for decreasing body fat in localized regions of the body?

  • No.

  • The regional distribution and mobilization of adipose tissue appears to follow a biologically selective pattern regardless of type of exercise.

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Body Composition Questions

  • Why should a fat loss diet include at least 55-65% carbohydrates?

  • CHO helps maintain normal function of the nervous system because nerve tissue relies solely on glucose as a fuel for energy.

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Body Composition Questions

  • Consuming adequate amounts of CHO on a daily basis prevents the depletion of glycogen stores and the need to synthesize glucose from the body’s protein (protein-sparing effect).

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Body Composition Questions

  • When glycogen stores are depleted, the glucose needs of the body are met through the breakdown of muscle protein.

  • This leads to a loss of lean tissue rather than fat.

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Body Composition Questions

  • CHO is also essential for fat metabolism.

  • When CHOs are restricted or CHO stores are depleted, more fatty acids are mobilized from adipose tissue that can be metabolized by the body.

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Body Composition Questions

  • This results in the incomplete breakdown of lipids and the formation of ketone bodies that may cause ketosis.

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Body Composition Questions

  • In addition, muscle glycogen and glucose are the primary fuels used during intense, short-term exercise and prolonged, submaximal exercise.

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Body Composition Questions

  • Inclusion of adequate amounts of CHO in the diet prevents depletion of muscle glycogen and the consequent reduction in endurance performance.

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Body Composition Questions

  • Why do low-carbohydrate diets produce such a rapid weight loss?

  • Diets that limit or totally exclude CHO produce a rapid weight loss.

  • When CHO intake is low, muscle glycogen stores are depleted rapidly.

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Body Composition Questions

  • For every gram of CHO, 3 grams of H20 are stored in the body.

  • When glycogen stores are depleted, the loss of water leads to a dramatic weight loss because each liter of water weighs approximately 2 lbs.

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Body Composition Questions

  • The weight is regained rapidly, however, when CHO intake returns to normal.

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Body Composition Questions

  • Why are low carbohydrate diets unsafe?

  • Low CHO intake may lead to fatigue, hypoglycemia, and ketosis.

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Body Composition Questions

  • Are high-protein diets safe?

  • High-protein diets that limit CHO intake promote muscle tissue loss.

  • When CHO intake is restricted, the glucose needs of the body are met by breaking down proteins.

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Body Composition Questions

  • Excessive protein intake does not promote protein synthesis.

  • Instead the excess protein is metabolized.

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Body Composition Questions

  • The amino acids are deaminated, the excess nitrogen is excreted in the urine as urea, and the remaining carbon skeleton is converted to glucose or used as an energy fuel.

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Body Composition Questions

  • Some high-protein diets require drinking large quantities of water to prevent the dehydration caused by excess urea production and to wash away ketone bodies.

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Body Composition Questions

  • Dehydration and the additional stress placed on the kidneys may be potentially dangerous, especially for individuals with kidney problems or gout.

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Body Composition Questions

  • Are high-fat diets unsafe?

  • Yes

  • They produce high levels of serum cholesterol and triglycerides which may lead to atherosclerosis.

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Body Composition Questions

  • Typically high-fat diets are high in calories, therefore a smaller volume of food must be consumed.

  • There are no metabolic pathways in the body for converting fatty acids to glucose, so excess fat is stored in adipose tissue.

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Body Composition Questions

  • What is the danger of fasting or skipping meals to promote weight loss?

  • Potential side effects include kidney malfunction, hyperuricemia, loss of hair, dizziness, fainting, and muscle cramping.

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Body Composition Questions

  • When the body is deprived of food, it responds by increasing the fat-depositing enzymes and storing more fat.

  • The body will also metabolize protein to meet its energy needs.

  • Body will absorb more of the food that appears in digestive system.