Swimming
is an aerobic exercise due to the relatively long exercise times,
requiring a constant oxygen supply to the muscles, As with most
aerobic exercise it is believed to reduce the harmful effects of
stress.
Because the density of the human body is approximately similar
to water, the body is supported by the water and less stress is
therefore placed on joints and bones. Furthermore, the hydrodynamics
resistance against movement depends heavily on the speed of the
movement, allowing the fine tuning of the exercise according to
ones ability. Therefore, it is frequently used as an exercise in
rehabilitation after injuries or for the disabled.
While aerobic exercises usually burn fat and help with losing weight,
this effect is limited in swimming, even though being in cold water
burns more food energy to maintain body temperature.
The reason that it does not significantly reduce weight is still
poorly understood, but seems to be related to the better heat conduction
of water. A number of reasons are suspected.
First, water cools the body much faster than air, and most
researchers believe that subsequently the body aims to maintain
a layer of fat under the skin for insulation.
Secondly, it is believed that appetite decreases as your body
temperature increases, as for example during exercise. However,
during a swim the body is cooled down almost instantly as the
surrounding water is usually cooler than the body temperature,
and some researchers believe that this may actually increase the
appetite. This assumption is not yet proven by research.
Finally, some researchers also believe that the metabolism
of the body increases at higher body temperature, burning more
food energy. Again, during swimming the body is cooled down by
the surrounding water, reducing the metabolism, and subsequently
the amount of food energy burnt. This assumption is also not yet
proven by research.
When you swim you exercise almost all muscles in the body. Usually,
the arms and upper body are exercised more than the legs.
Swimming and Heart Health
Heart disease is the leading cause of death among Americans, with
23 million people diagnosed and nearly 1 million deaths annually. That
means that approximately 2,500 people die each day from heart disease.
Physical fitness plays a key roll in preventing heart disease. According
to the American Heart Association, “Most beneficial effects
of physical activity on cardiovascular disease mortality can be
attained through moderate-intensity activity (40% to 60% of maximal
oxygen uptake, depending on age). The activity can be accrued through
formal training programs or leisure-time physical activities.”
When You swim regularly as part of your fitness routine, combined
with proper diet, is an excellent way for you to get the cardiovascular
benefits of exercise and can help you avoid heart disease.
Styles On the Breast
Front crawl: is the fastest
style
Trudgeon: is similar to the front crawl,
except it is swum with a scissor kick
Trudgen Crawl: Similar to the trudgen, but
with a flutter kick between the scissor kicks
Double Trudgen: Similar to the trudgen, but
the sides of the scissor kick alternate
Double Trudgen Crawl: Similar to the double
trudgen, but with a flutter kick between the scissor kicks
Dolphin Crawl: Similar to front crawl, but
with a dolphin kick. One kick per arm or two kicks per cycle.
This style is often used in training.
Catch up stroke: A variation of the front
crawl where one arm always rests at the front while the other
arm performs one cycle.
Breaststroke
Heads-Up Breaststroke: Similar to the breaststroke, but the head
stays out of the water. This style is very popular for recreational
and also for rescuers approaching a victim.
Butterfly stroke
Slow Butterfly (also known as ''Moth stroke''):
Similar to butterfly, but with an extended gliding phase, Breathing
during the pull/push phase, return head into water during recovery.
This style uses four kicks or more per cycle.
Dog paddle: face over water and paddling
alternatingly with the hands.
Human Stroke: Similar to the dog paddle,
but the arms reach out more and pull farther down.
Survival Travel Stroke: Alternating underwater
arm stroke, one cycle for propulsion, one for lift to stay on
the surface. This style is slow but sustainable.
Snorkeling: on the breast using a snorkel,
usually in combination with masks and fins. Any stroke on the
breast can be used, and there is no need to lift or turn the head
for breathing.
On the Back
Backstroke
Elementary Backstroke: Both arms move synchronized
with a small synchronized kick. This is also sometimes known as
the
Lifesaving Kick
Inverted Breaststroke: Similar to Elementary
Backstroke, but with a breaststroke kick.
Inverted Butterfly: Similar to Elementary
backstroke, but with a dolphin kick. This is often used for training.
Back Double Trudgen: Similar to the Backstroke,
but with a scissor kick to alternating sides.
Flutter Back Finning: Symmetrically underwater
arm recovery with flutter kick.
Feet First : A very slow stroke on the back
where a breaststroke movement with the arms propels the body forward
feet first. This is often used for training.
On the Side
Side stroke: Lying on the side with alternating
underwater recovery and a scissor kick
Overarm Sidestroke: Similar to the side stroke,
but with a over water recovery of the top arm
Other
Corkscrew : Alternating between Front crawl
and backstroke every arm. This leads to a constant rotation of
the swimmer. The stroke is used mainly for training purposes
Underwater : any style with underwater recovery
can be swum under water for certain distances depending on the
need for air. Underwater swimming on the back has the additional
possibility of water entering the nose. The swimmer can breathe
out through the nose or wear a nose clip. Some swimmers can close
their nostrils with the upper lip.
Gliding: The swimmer is stretched with the
arms to the front, the head between the arms and the feet to the
back. This streamlined shape minimizes resistance and allows the
swimmer to glide, for example after a start, a push off from a
wall, or to rest between strokes.
Turtle stroke: on the breast, extend right
arm then pull, after pushing with the left leg (while opposite
limbs are recovering), then opposite limbs repeat this process,
i.e. left arm pulls after right leg pushes. Uses muscles of the
waist. Head can easily be above or below water: this is a slow
but very sustainable stroke, popular with turtles and newts.
Starting a Routine
If you are overweight, or have not participated in a regular fitness
program in quite some time, you should consult your doctor before
beginning. Your doctor can advise you of any precautions you should
take based on your general health, age, and weight, and may suggest
a guideline to get you started on your exercise program.
If you are a poor swimmer or do not know how to swim, many parks
and recreation departments offer lessons at reduced or no cost to
city residents. Some health clubs offer lessons to their members.
Locations
Depending on where you live and the seasonal climate, your choices
may be limited.
Most health and fitness clubs have pools available to members. Many
health insurance plans offer partial or complete reimbursement of
health club membership fees.
You can swim outdoors at a local beach or lake is an enjoyable
alternative to a pool.
Tips
You should try not to swim alone. When you swim with a friend
it is like having a spotter when you are weight lifting. If
you don’t have a partner, swim in a location that has at a
life guard on duty. Before entering the water, always be aware
of the depths you are about to swim in.
If you swim in a pool, know where the nearest ladder and steps
are. Wear goggles to avoid eye irritation from pool chemicals,
and showering after a swim will help to keep your skin from becoming
dry or irritated.
When you swim at a beach, lake, or pond, familiarize yourself with
any drop-offs or underwater obstacles that may result in injury.
Try to swim at times when there are fewer people in the water to
avoid interruptions to your routine and possible injury. Be mindful
of tide changes, undertow and wave height when you swim.
Some of the text in this article is licensed
under the Gnu
Free it was taken from the Swimming
article
Multimedia library
Heart Animations
Exercise and fitness Video updated daily
More Exercise videos
Latest Exercise information and headlines
Exercise
Tips Advice instructions software
A great weight loss software Track your exercise and weight progress using this easy to use software. Read Burn the fat feed the muscle The internet's best selling fitness e-book written by Tom Vonnuto. He discloses the truth about diet fads, pills, and frauds. Read the truth here.