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The game of soccer is a typical acyclic sport. The intensity during the
match changes all the time. The loading has an interval character, with frequent
breaks and short rests. During a game phosphate and glycogen supply most of the
energy, thru anaerobic (without oxygen) production of ATP (adenosine
triphosphate).
Soccer is a diverse game and so are the requirements it places on the
player’s body. Long-lasting workouts develop endurance, as well as strength
and agility, since the players are running plenty of sprints with high speed.
The neuropsychological load is considerable, as the matches are emotional and
the situation is ever changing. So, during the execution of these max and
sub-max efforts lactate builds up in the organism as a result of the accelerated
metabolism. Waste products are eliminated to a degree during pauses and the
break at the half.
The character of the player’s nutrition determines the biochemical
changes in their organism. The foods they consume have to cover the energetic
deficit, which is around 627-646 kJ (149-154 cal) per lb of body weight, in
order to obtain the essential substances to aid the development of the soccer
specific physical characteristics. It is imperative to follow an appropriate
diet as well as maintain an adequate liquid intake.
The diet of the players has to be well balanced and include a large range
of food at all times, and especially during the Pre-Season period. It has to
contain:
·
Enough complete proteins, necessary for the
development of the strength and the speed
·
Optimal quantity carbohydrates, essential for the
increase of glycogen reserves in the body of the soccer player
·
Less fatty foods
·
Sufficient quantities of vitamins, minerals,
microelements and other biologically active elements.
The ingredients of the food
have to vary, considering the character of the loading and the physical
qualities, which are being mostly developed at that particular period.
As a result of the sweating
during a match, the soccer players can loose from about 2 to up to 7 lb from
their body weight. Dehydration may occur, which could lead to poor
thermoregulation and prevent adequate oxygen and energy supply to the muscle
tissue. That’s why it is recommended during the hot months of the year to
increase the liquid intake to about 100 fluid ounces a day. However, more than
the required amount of liquids doesn’t improve performance or progress.
The food distribution during
the day is influenced by time, more specifically, when the major physical effort
occurs. If the main training is in the afternoon, the breakfast should be more
substantial and high in calories and lunch should be lighter. If the practice is
in the morning, breakfast should be lighter, and the lunch more rich and
restorative. It is recommended to eat four or five times a day if the players
workout twice a day. In such case the meals should be evenly distributed.
It is desirable to increase
the carbohydrates part of the diet in order to replenish the glycogen reserves
during the last 2-3 days before a soccer match. The dinner on the
pre-competitive day should be somewhat light. In order to rest well that night,
the athlete shouldn’t take any stimulating foods and drinks, such as
chocolate, coffee, tea or any kind of sodas, containing caffeine (Coke, 7-up,
Mountain Dew, etc.). The dinner should include moderate quantity lean meat or
fish, potatoes, salad, yogurt, canned or fresh fruits.
On the day of the game, the
food should be easily digestible, with reduced fibers and small in quantity, but
high in calories. The players have to avoid acid foods, since that would put
pressure on the alkaline reserve of the organism.
Also on the day of the match
the following dishes should be absolutely out of the menu:
·
Any kind of fat dishes
·
Fried foods
·
Salami and deli meats
·
Caned fish and meats
·
Hard-boiled eggs
·
Pickled cucumbers and vegetables
·
Beans (sweet peas, lentils, kidney beans, etc.)
·
Spices
·
Rich deserts
The last meal should be from 3
to 3.5 hours before the beginning of the soccer game. Right before the match the
players could drink a cup of hot tea with 30-50 g of honey or glucose. It is a
good idea to drink about 200 mg of salty vegetable (tomato, carrots, celery) or
meat (chicken, beef) bullion in hot days approximately 30 min before the game.
Effective way to boost the
energy of the soccer players during the break at the half is to have some
refreshments. This should be done in order to recover the water, blood sugar and
the electrolytes in the organism. Drinks are better choice than real meals,
because of their faster utilization and influence on the metabolism. Recommended
are hot tea with honey and lemon; mineral water mixed with glucose and liquid
Vitamin C, or electrolyte drinks. The drink shouldn’t be cold, because it will
take longer to be digested. It should be drunk with small sips, slowly. The
quantity of the glucose or sugar should not be over 20 g, because when
concentrated, sugar solutions are not digested fast enough in order to
positively influence the game so soon. Drinking milk during the break is
strongly discouraged, because the casein (in milk) curdles in the stomach, which
leads to increase of the mucus and the slowing of absorption.
As refreshment during a long
match with overtimes, you could use some salty vegetable bullion as we mentioned
before. This could prevent muscle cramps, which occur in soccer players during
extremely tough matches. It’s acceptable to eat some fresh fruits, like
peaches or oranges, in small quantity.
The post-game meal should be
1-1.5 hours after the end of the match. This is enough time for recovery of the
blood circulation, which would aid the proper digestion and utilization of the
food.
The first thing to do during
the recovery period should be to fight with the dehydration of the body. A
deficiency of adequate amount of water will decrease optimal body functions.
Also, timely hydration helps faster release of the toxins build up as a result
of the fatigue. It’s recommended to drink 300 g hot sweetened tea with lemon
or 300 g mineral water right after the game. Carbohydrates (glucose, fructose,
sugar, honey) intake is suggested in order to compensate part of the energy
expenditure and to restore the glycogen reserves in the muscles and the liver.
Do not eat large quantities
meat right after the match, because of the acidity of the meat and meat
products. The food should be low fat, because the fat slows down the synthesis
of the glycogen in the liver.
After the game the players
need higher dozes of vitamins. They do not contain calories and would not make
up for the calorie expenditure, but would help to release the energy stored in
carbohydrates, fats and proteins. It
is better if the vitamins come form a natural source, but if you have no choice
it’s okay to use vitamin supplements instead.
Energy and
nutrition requirements model for soccer players
(Average
body weight 160 lb.)
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1.
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Caloric
expenditure per day
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5040
cal
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2.
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Caloric
expenditure per pound body weight
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31
½ cal
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3.
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Major
nutrients intake per day:
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Proteins
- 17% of the daily intake
|
209
g
|
|
-
Complete proteins (from animal sources) - 66%
|
138
g
|
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-
Incomplete proteins (from plant sources) - 34%
|
71
g
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Proteins
per pound body mass
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1.32
g
|
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Fats
(lipids) - 27% of the daily intake
|
146
g
|
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-
From animal sources (35%)
|
51
g
|
|
-
From dairy products
|
44
g
|
|
-
From plant sources (34%)
|
55
g
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Fats
per pound body mass
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0.91
g
|
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Carbohydrates
- 56% of the daily intake
|
688
g
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-
Monosaccharids (35%)
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241
g
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-
Polysaccharids (65%)
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447
g
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Carbohydrates
per pound body mass
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4.36
|
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4.
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Suggested
caloric intake balance: Proteins / Fats / Carbohydrates
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1:
0.7: 3.3
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From proteins:
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20%
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From
fats:
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14%
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|
From
carbohydrates:
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66%
|
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5.
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Daily
vitamins requirements
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| Vitamin
A - 4 mg |
Vitamin
E - 50 mg
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| Vitamin
B1 - 6 mg |
Vitamin
B2 - 6 mg
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| Vitamin
C - 300 mg |
Vitamin
PP - 30 mg |
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6.
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Daily
minerals requirements:
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Calcium
- 2000 mg
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Potassium
- 4000 mg
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Phosphorus
- 3000 mg
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Iron
- 30 mg
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