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Blog posts tagged with 'body transformation'

Caffeine

Caffeine is one of the most widely used drugs amongst athletes, professional and recreational. Often found in products such as coffee, tea, soft drinks, chocolates and various other foods. Caffeine does have its place in enahncing athletic performance both aerobic and anaerobic, however there are some significant disadvantages when caffeine is abused. The purpose of this blog article is to take you through what caffeine does and some of the pros and cons of consuming caffeine. 

 

So before, we go into why we should and shouldnt take caffeine lets get some actual understanding of what caffeine does when it is in the body. Caffeine as you are all aware is a stimulant, a stimulant that acts upon the central nervous system. It does this by crossing the blood brain barrier and binding to adensosine receptors causing a decrease in adenosine bound to these receptors and subsequent  increase in circulating dopamaine activity (Fredholm et al, 1999). Where there is an increase dopamaine there is a feeling of greater confidence and this why we feel that buzz from taking caffeine products. So now you know a little more about how caffeine works and why feel alive when we take it, lets explore the positives and negatives.

 

Positives

  • Increase lipolysis- The break down of fat stored in fat cells (Dulloo et al, 1989).
  • Thermogensis- Heat production in organsims. An increase in thermogenesis will increase calories burned (Dulloo et al, 1989). 
  • epinephrine- a catecholamine released by the adrenal glands as part of a persons fight or flight response. Epinephrine release results in an increase in heart rate, blood vessel contraction, and dilation of air passages (Graham and Spriet, 1996).
  • Increase carbohydrate absorption (MARATHON RUNNERS)- caffeine consumption increases the absorption of carbohydrates in the intestine. This has shown an increase of carbohydrate oxidation by 26% which has shown a 15-23% increase in work capacity due to the faster delivery in carbohydrates!

 

Negatives 

 

  • Anxiety 
  • Reliance- based upon how much you have and are use to. You will find if you dont consume your usual dosage you will have some very nasty withdrawal symptoms such as; headaches, shaking, mood changes, tiredness etc
  • tremors
  • insomnia
  • gastrointestinal disturbances
  • heart arrhythmias
  • increase the risk of heat illness

 

In conclusion we can see that caffeine does have some amazing benefits as far as performance is concerned. However, caffeine is an addictive drug, and can have some every nasty side effects if the proper dosages are not stuck to. If after reading this article you are looking to use caffeine as a supplement or are looking for your correct daily dosage please email me on dave@bensonpersonaltrainer.co.uk.

 

 

Under Active Thyroid

An under active thyroid is not usually serious and is combated through the use of hormone tablets to replace the hormones that the thyroid isnt making (thyroxine). A normal thyroid produces to hormone one called thyroxine (T4) and another called triiodothyronine (T3). In the cells the T4 is converted to T3. Its the T3, derived from the T4 or secreted as T3 from the thyroid gland, which is biologically active and influences the activity of all the cells and tissues of the body. what causes the thyroid to be under active is the fact that not enough thyroxine is produced (hypothyroidism).

The syptoms of hypothyroidism

  • Tiredness
  • being sensitive to cold
  • weight gain
  • constipation 
  • depression
  • muscle aches and weakness
  • muscle cramps
  • dry and scaly
  • brittle hair and nails
  • carpal tunnel syndrome

Anyone with an underactive thyroid should not be dettered from wanting to pursue a life in the fitness industry or prevent it from wanting to achieve that desired body. Sarah has proven this with her hard work and dedication, she has been on top her medication and has kept on top of her calorie controlled diet and exercise. Sarah has learnt how to control it so well she can even enjoy meals out and nights out with her friends. 

How?....

Sarahs routine has been comprised of taking part in very intermitent exercise such as interval training, circuit training and insanity. With regards to any cardiovascular training the after burn effect has been taken into great consideration, therefore sarah is burning more calories when sedentary. Also, in order to increase sarahs metabolism, more resistance training has been incorporated into her routine. this will increase her lean mass and will therefore increase her fat burning potential when she isn't at the gym. 

For more information email David Benson dave@bensonpersonaltrainer.co.uk