Winter
exercise, can improve the body's ability to adapt to cold conditions, good
health, opportunity to get sick than the average person to be a lot less. But
for some people the respiratory tract relatively soft, dried OUTDOORS in winter
cold air tends to make their bathing outdoor SPORTS program. In fact, as long as
the attention to some of the basic method of breathing exercise, it can well
protect their airway damage from cold, dry air in winter
exercise.
Freestyle BMX is bicycle motocross stunt riding on BMX bikes. It is an extreme sport descended from BMX racing that consists of five disciplines: street, park, vert, trails, and flatland.
Flatland BMX occupies a position somewhat removed from the rest of freestyle BMX. People who ride in the above disciplines will generally take part in at least one of the others, but flatlanders tend to only ride flatland. They are often very dedicated and will spend several hours a day perfecting their technique.
Flatland also differs from the others in that the terrain used is nothing but a smooth, flat surface (e.g. an asphalt parking lot, basketball courts, etc.). Tricks are performed by spinning and balancing in a variety of body and bicycle positions. Riders almost always use knurled aluminum pegs to stand on to manipulate the bike into even stranger positions.
Flatland bikes typically have a shorter wheelbase than other freestyle bikes. Flatland bikes differ from dirt jumping bikes and freestyle bikes in one way. The frames are often more heavily reinforced because the people riding flatland often stand on the frames. This shorter wheelbase requires less effort to make the bike spin or to position the bike on one wheel. One of the primary reasons flatlanders often ride only flatland is the decreased stability of a shorter bike on ramps, dirt and street.
A variety of options are commonly found on flatland bikes. The most unifying feature of flatland bikes is the use of four pegs, one on the end of each wheel axle. Flatland riders will choose to run either a front brake, a rear brake, both brakes, or no brakes at all, depending on stylistic preference.
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Outdoor sports best to breathe through the
nose
Hospital Respiratory chief physician said that
when winter physical exercise should be a conscious control respiratory rate,
respiratory rate, preferably not more than 20-30 times per minute. "Respiratory
rate can reflect the body's movement ability, for just people who exercise
outdoors, rapid breathing rhythm often represents exercise intensity is too
large, while in winter, the air itself is relatively dry, shortness of breath
and too will the respiratory system resulting in a greater burden of pneumonia,
bronchitis incidence. "
In the winter the best time for outdoor sports
breathing through the nose, there are more rich in blood vessels and glands
within the nasal mucosa, when the cold air through the nose, can play heat,
moisture effects, thus avoiding the cold, dry or with There are dust and
pathogenic microorganisms inhaled. Even at higher exercise intensity when not
completely through the nose breathing, should also take a combination of
breathing nose and mouth, or slightly Sheqian unit volume micro paste palate, in
order to avoid cold air directly stimulate the throat and
lungs.
Deepen breath improve
discomfort
Winter outdoor sports should pay attention to
adjust their breathing patterns. In particular, people who are just starting to
exercise, their respiratory system, blood oxygen capacity and the activity of
the entire body are poor. If the exercise intensity is too large, then they tend
to increase the frequency of breathing, shallow breathing and more appear. This
continues in motion will appear inhale exhale deeper than the depth of the
state, for a long time will cause chest tightness, shortness of breath. This
time it should adjust their breathing patterns, much deeper breath, this will
improve the respiratory status, reducing the sense of discomfort caused by
winter sports.