Effect of Caffeinated Athletics Drink: Exercise and Heart and soul Rate

  • Manpreet Nijjar

The Effect of a Sports Drink containing caffeine containing drinks or Sugars and the combination combined on Exercise and Heart Rate

INVESTIGATION TASK

This study investigated the effects of different energy drinks (a carbohydrate founded athletics drink, a caffeine based athletics drink, a glass or two with the glucose and caffeine blended), on resting heartrate (HR), heartrate variability (HRV), run time-to-exhaustion (RTTE), peak exercise HR, and give back time to relaxing HR.

RESEARCH QUESTION

Would the intake of particular energy beverages affect the guts rate and capability to exercise for longer?

BACKGROUND INFORMATION

Sports science which incorporates the effective use of diet and exercise science is now widely recognised in contributing factor optimising athlete performance. It practices that if an sportsman wants to train for longer intervals and minimise recovery period between exercises then he or she must be well nourished.

Many of the body's metabolic processes involved in exercise are reliant on the the different parts of an athlete's diet and for that reason by changing these components, they might be in a position to change athletic capacity.

Recently amongst many teenagers the use of energy drinks has become elegant as well as the more traditional use of multivitamins to boost athletic performance. Illicit taking of performance enhancing drugs, such as anabolic steroids, is also widely-recognised as a means of achieving rapidly improved athletic functions. [1, 2].

Despite these extensively held beliefs, there exists minimal data to underpin the claims of manufactures of the energy drinks that they have any significant influence on cardiovascular efficaciousness and efficiency, specifically that of brief duration exercise. [3]

There is not a evidence to suggest that water by themselves is superior when compared to sports drinks in reaching increased exercise length of time and capacity even though the opposite has often been proven. [1, 5, 8]

[5-9 not used]

A overview of various research articles on the use of energy beverages and exercise performance unveils apparently inconsistent conclusions:

  1. Improved performance levels in exercises such as sprint bicycling and cycling duration, weight lifting and sprinting. [10-15]
  2. No factor in exercise performance [11, 14, 15]

Ingredients in typically the most popular sport drinks include caffeine, and the amino acid taurine, which both may impact on heart rate [18, 19], Bichler and fellow workers [20] investigated the mixture of levels of caffeine and taurine vs. a placebo and found it actually induced a significant decrease in heart rate. Additional elements are glucose, flavorings, natural remedies and B-vitamins.

The amount and types of carbohydrate found in sports beverages was found to be adjustable. There were some 'diet' energy beverages that got zero carbohydrates in comparison to some with medium volumes (e. g. Powerade at 3. 9g/100ml), plus some very high volumes (KX beverages at 9g/100ml).

The capacity of the drink to improve performance is governed by its carbohydrate content. Simple glucose (a combo of sucrose, sugar, and fructose) have been shown to be consumed quickly and oxidised easily to release energy; two factors vital to athletes to improve performance. [5, 6].

The body uses glucose to do 'work' - it is the preferred material for muscle contraction, the central nervous system and excess fat oxidisation. Your body would prefer to work with carbohydrates somewhat than have to break up proteins for energy. Ingested glucose are digested in to the blood stream in the tummy and small intestines as smaller sugars components mainly of fructose, galactose and glucose. Fructose and galactose are then converted to glucose in the liver and released back to the bloodstream where it is used as required. The mind can only use glucose for its energy requirements. After ingestion of glucose, the glucose levels increase in the bloodstream as per the above mechanism. If your body will not utilise this blood sugar, the excess blood sugar is stored in the muscles and liver organ as glycogen which is set up by the enzyme insulin released by the pancreas. Our body can only just store about 20000 calories equivalent of glycogen. Excess glycogen above this level is stockpiled as fat (adipose structure).

When your body is exercising, it'll consume the glucose as first choice. Once the sugar levels have been depleted, an enzyme called glucagon will change the above process -turning glycogen back again to glucose- and thus glucose levels in the blood stream increase. As muscles can only just use the glycogen in them - they cannot borrow from resting muscles - so after the glycogen levels have been used, muscle fatigue results. It is thus important for athletes to revive glycogen levels back to their original levels by consuming carbohydrates. The use of a carbohydrate drink should thus help by increasing the sugar levels directly after absorption from the belly - typically 20 minutes after ingestion - and keep glucose levels high so that exercise can be done for longer length of time. It should also help recovery time as any used glycogen can be quickly replenished.

Another benefit that energy beverages could supply the athlete is the repair of any depleted electrolytes. An action probable directed down a nerve causes the muscle to contract which requires certain electrolytes for this to occur. It the muscle is consistently contracted, the electrolytes will become spent. As sports refreshments contain electrolytes in them, these put in electrolytes are substituted and so muscle contraction could happen at peak level.

From the above, it could be fairly assumed that ingestion of your carbohydrate energy sports activities drink 20 minutes before the commencement of exercise should improve the athlete's performance and also aid post exercise restoration.

Caffeine, a naturally occurring alkaloid also called trimethylxanthine, is situated in coffee and tea plant life and acts as an agonist of the central stressed system. Level of caffeine is also within chocolate (from cocoa bean) and used as an additive in fizzy beverages. The percentage within fizzy refreshments is relatively small (approx. 12mg/100ml) whereas in sports activities drinks, it is generally a lot higher (approx. 40mg/1000ml).

Caffeine, that includes a half-life of between three to five hours, (i. e. the time taken to reduce its attentiveness by 1 / 2), is consumed in the tiny intestine, then divided into its components in the liver organ cell and sent out to body cells within 45 minutes of ingestion.

Caffeine reduces into the following components [22]:

 

Caffeine Metabolites

Of the three metabolites of levels of caffeine, theophylline, which only accounts for 4%, has nominal effect on the body. Of the other two, theobromine, formerly known as xantheose, is a bitter alkaloid and causes vasodilation and decreased ADH hormone creation in the kidneys and therefore brings about increased urine amount. The final metabolite of caffeine containing drinks is paraxantine,

a competitive nonselective phosphodiesterase inhibitor and a non-selective adenosine receptor antagonist. The result of paraxantine on our body is to:

- increase intracellular cAMP (a second messenger)which would lead to increased bloodstream glucose levels. A second messenger is a molecule that relays alerts received at receptors on the cell surface to the mark molecules in the cytosol and/or nucleus and will sometimes amplify this transmission.

- raise free fatty acid attention in serum by lipolysis (lipid malfunction)

-raise plasma epinephrine (adrenaline) levels and increase diastolic blood vessels pressure

The overall mechanism and enzymes that levels of caffeine interacts in order to be broken down are shown below, which is extracted from PharmGKB website. [27]:

 

[27]

From the above mentioned information, it is fair to expect that following ingestion of a caffeine drink 20 minutes prior to exercise that the relaxing heart rate would increase due to the release of adrenaline by the caffeine containing drinks metabolites. You might also expect the athlete to perform better and recover quicker after exercise as the level of caffeine raises lipolysis and increased sugar levels. Post exercise the resting heart rate will still be higher as the half-life of caffeine is between 3-5 hours.

Composition of the drinks used in the test:

  1. Carbohydrate athletics drink

Carbonated drinking water, Dextrose (87%), Maltodextrin, Magnesium Carbonate, Acidifier (Citric Acid), Anti-Caking Agent (Magnesium Salts of Fatty Acids), Flavouring, Vitamin C, Vitamin B1, Vitamin supplements B6

Caffeine content 0mg per 250ml serving

Carbohydrate content 24. 2g per 250ml serving

  1. KX sweets free stimulation drink

Carbonated normal water, citric acid, taurine (0. 4% ), acidity regulator (trisodium citrate), flavouring, guarana draw out (0. 12%), color, sweeteners (aspartame, acesulfame K) level of caffeine, preservative (potassium sorbate), inositol, B natural vitamins.

Caffeine content 80mg per 250ml serving

Carbohydrate content 0mg per 250 ml serving

  1. KX simulation drink

Citric Acid, Flavouring, Stabilisers (Acacia, Glycerol Esters of Hardwood Rosins), Levels of caffeine, Preservative (Potassium Sorbate), Inositol, B Vitamin supplements (Niacin, Pantothenic Acid, Vitamin B6, Supplement B12)

Caffeine content 80mg per 250ml serving

Carbohydrate content 25g per 250ml serving

  1. Placebo drink

Carbonated normal water, flavouring

Caffeine content 0mg

Carbohydrate content 0g

HypothЁses

Hypothesis

General Prediction:

  1. The use of the carbohydrate energy drink will result in no appreciable upsurge in resting heart rate as well as after any physical activity. I would expect the participants to have the ability to do exercise for longer with a higher depth.
  2. The consumption of the high caffeine containing drinks energy drink will cause an increase in the resting heartrate and pre and post physical activity. I'd also expect the individuals to be able to do physical activity for longer with a higher intensity.
  3. The ingestion of the blended high levels of caffeine and high-carb drink will I believe improve the resting heartrate due to the caffeine content and also after physical activity it'll still stay high. The amount of and strength of physical activity done by the individuals should be greater than the carbohydrate or caffeine containing drinks drink alone. Post exercise the resting heartrate will be higher although you might expect the recovery a chance to be quicker than the other beverages.
  4. The placebo drink should have no appreciable difference on any relaxing heartrate or physical activity.

Hypothesis:

Carbohydrate drink:

Consumption of glucose will raise the amount of glucose in the blood vessels after absorption from the GIT. This means a briefly high amount of blood sugar in the blood vessels after about 20 minutes but if relaxing, this high sugar amount will induce the production of insulin that may convert the surplus glucose to glycogen. This glycogen transformation will reduce the glucose levels in the blood stream to levels before the consumption of the carbohydrate drink. Although there's a popular notion that intake of sugar-containing food or drinks can lead to temporary hyperactivity, sometimes known as a 'sugar dash', this is actually medically disproven. [28]

Caffeine drink:

ATP (adenosine triphosphate) is produced by almost all living things in their cell's organelles called mitochondria, which is one of the nucleotides that define DNA. In addition, it works as a mobile signal and the triphosphate works an energy source for enzymatic reactions. It isn't energy itself, but rather temporarily "stores" energy in its phosphodiester bonds. When the third phosphate bond is established, it immediately is destroyed and energy is released that can power the metabolic substance reactions required by living microorganisms, which usually would be inefficient. This creates ADP which has one less phosphate mounted on the group.

An analogy to make use of with ATP is to think about it as a electric battery that gets charged and when it is totally charged, it enables off a spark. This spark initiates the chemical substance reaction to commence to do work in the body.

Caffeine serves as an agonist(stimulant) on adenosine receptors however in a very general sense. As level of caffeine is a central stressed system stimulant which heightens metabolism and for that reason, the cellular usage of ATP will cause the heart rate to raise. So, post usage, caffeine raises ATP levels in the body, which causes heartrate to raise.

Post exercise the heart rate will stay enhanced (higher resting rate) because the occurrence of caffeine causes increased levels of cAMP, and at the same time enables cAMP to remain active for longer. Increased degrees of cAMP bring about a rise in ATP; resulting in an elevated heartrate for a longer period.

METHOD:

To ascertain whether the energy drink influences the resting heart rate:

I will be choosing one subject and will be observing the consequences the drink has on the heartrate at slumber as well as after physical exercise. Subject matter must be of normal BMI and without any health ailments to be able to make certain I do have no other factors impacting Subject's heart rate. First I will be monitoring and recording the subject's heart rate at permanent intervals after ingestion of levels of caffeine. Through this I will be able to conclude the quantity of increment in the heartrate caused by the consumption of the vitality drink I am going to also have the ability to determine the amount time it takes for the heart rate to reach its highest level after the consumption of a power drink.

Further on I will test the result the drink is wearing the heart rate after exercise. First I'll record the heart rate of subject after working on the treadmill for time of 2 minutes on arranged acceleration of 7 km/ph which will give me subject's heart rate after physical exercise without the effect on the vitality drink. And I'll make the subject perform the same. I am making the topic perform this physical activity only after subject reaches peak heart rate after consuming the drink (Red Bull).

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