Energy Bar What Would You Choose Read the overview and compl

Energy Bar

What Would You Choose?

Read the overview and complete the interactivities that follow.

Sports Nutrition Products

Endurance athletes often complain of a point at which continuing to exercise seems both mentally and physically impossible. They call it “bonking” or “hitting the wall.” This decrease in performance occurs because blood glucose levels decline during exercise, limiting the supply of fuel to the brain, and muscle glycogen is depleted, limiting fuel for the muscles. Refueling the body during long bouts of exercise has been shown to delay fatigue and improve physical performance.

Test your knowledge about sources of fuel for exercise by answering the following questions.

What Would You Choose?

You are gearing up to run your first half-marathon in a few weeks. From your long training runs, you know that physical and mental fatigue sets in a few miles before the finish. You’d like to try one of the sports nutrition products you’ve seen at the grocery store. What would you choose to take along during the race to help you make it to the finish line?

One possible choice is an energy bar. The PowerBar ProteinPlus energy bar provides 300 kcal, 6 grams of fat, 39 grams of carbohydrate, and 23 grams of protein.

1.

In addition to the macronutrients it provides, the energy bar makes a significant contribution to meeting the Daily Value for several vitamins and minerals. What is a potential concern when consuming highly-fortified food products?

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Consuming multiple servings could lead to exceeding the Daily Value for some nutrients.

High intake of B vitamins promotes oxidative stress.

Some micronutrients contribute to fatigue.

High intake of water-soluble vitamins increases urine production.

selectConsuming multiple servings could lead to exceeding the Daily Value for some nutrients.High intake of B vitamins promotes oxidative stress.Some micronutrients contribute to fatigue.High intake of water-soluble vitamins increases urine production.2.

This energy bar provides some fuel for exercise, but during the race, you would need to consume additional

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fluid.

fatty acids.

amino acids.

caffeine.

selectfluid.fatty acids.amino acids.caffeine.3.

When would be the best time to use this protein-rich energy bar?

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Solution

1. ANS:

Explanation:

A. Consuming multiple servings could lead to exceeding the Daily Value for some nutrients

The main principle involved in food fortification is to decrease the occurrence of nutrient deficiencies. In some time consuming multiple servings could lead to exceeding the Daily Value for some nutrients. It affects the performance.

B. High intake of B vitamins promotes oxidative stress.

Some vitamins, like high intake of vitamin B12 can promote oxidative stress.

Low nourishment of B-vitamins (B 6, B 9, B 12) also cause oxidative stress.

C. Some micronutrients contribute to fatigue.

Mostly 3 micronutrients deficiency can leads to fatigue.

1. Low Vitamin B- complex (B1, 2, 3, 5, 7). In this mitochondria energy production is compressed.

2. Low magnesium ions can also leads to decrease mitochondria ability.

3. Low Antioxidants level (Vitamin C, E and selenium).

D. High intake of water-soluble vitamins increases urine production;

The body does not store high amount of B complex vitamins. Through urine this excess B complex vitamins can excrete. Due to this reason high intake of water-soluble vitamins can increases urine production.

2. ANS:

1. Fluids:

Body water balance is maintained when intake is equal to water loss. Race is a heavy exercise, sweat loss is about 1 to 2 lit/hr depends on intensity, temperature and duration. So athletes should replace body water lost during race by using guidelines. Due to this reason suitable fluid replacement is necessary.

2. Fatty acids:

Fatty acids can provide high amount of calories. Most athletes under estimate their calorie needs, body needs calories even when it’s resting to keep you alive. Body burnt most of the calories during and immediately after exercise.

3. Amino acids:

It maintains muscle mass, builds and repair tissue of damaged muscle and it also provides some energy.

4. Caffeine:

Caffeine is a 1, 3, 7 tri methyl xanthine derivative. In the presence of caffeine cAMP maintained prolong time by inhibiting cAMP phosphor diesterase enzyme. Hence the cell will in a stimulated state for prolong time.

Creatine, bicarbonate, glycerol and caffeine may be beneficial in some circumstances.

3. ANS:

The best time to use this protein-rich energy bar:

Protein-rich energy bar can use in any time of pre exercise, during exercise and post exercise. It mainly depends on our nutrition demand.

In most cases protein-rich energy bar can use in during exercise. Because in this condition the nutrients depletion is high, so body needs additional nutrients need replace it.