is a method that allows humans and other animals to move rapidly on foot. A
characteristic feature of a running body from the viewpoint of spring-mass
mechanics is that changes in kinetic and potential energy within a stride occur
simultaneously, with energy storage accomplished by springy tendons and passive
muscle elasticity. Running is a type of gait characterized by an aerial
phase in which the feet are above the ground. This is in contrast to
walking, where one foot is always in contact with the ground, the legs are kept
mostly straight and the center of gravity vaults over the stance leg or legs in
an inverted pendulum fashion. The term running can refer to any of a variety
of speeds ranging from jogging to sprinting.
Running shorts are athletic shorts, but not all athletic
shorts are running shorts. Running shorts are traditionally rather short
in length and usually have a split seam (the seam is cut up the side of each leg
to provide ease of movement).
are designed to facilitate comfort and free movement during exercise. Their
materials are generally lightweight and durable. Many running
include an inner lining that acts as underwear, so that the wearer does not have
to wear underwear
with running shorts. Polyester is a common fabric in running shorts. However,
this is not the only fiber option.
Longer shorts are not as
ideal for running. A runner's stride may pull up the fabric of his or her
shorts, which can cause discomfort. However, some runners prefer longer shorts
because they cover a greater portion of their legs. Much of this may
depend on the environmental conditions in which the runner is exercising.
For example, if they are running up a cold weather mountain range, they may opt
for a longer short (or long pants).
Most running shorts have a seam cut up the side of each
leg to enable freer movement. Manufacturers define running shorts according to
the length of the leg which is not cut. For example, a 3/4 seam means that 1/4
of the length is cut.
3/4 split seam shorts are short, but not as short as 1/2
split seam shorts
Square leg shorts have no split at all.
V-Notch Shorts: The most popular
style of running shorts are the v-notch shorts.
They get their name from the upside down v-shaped cutout on the outer leg seams
starting about a half-inch from the hem. The v cutout enables the runner to
have a greater range of movement than if the seams were sewn together all the
Split Shorts: Split shorts and
v-notch shorts are very similar running short styles but are definitely
different. These two short styles are often confused with one another because
they look very similar. Just like the V-notch, the split shorts also
feature a loose fit and the leg seams have an upside down “v" cutout at the
bottom. The difference is that the “split shorts" the v shape part of the
leg seam is created by the front panel
overlapping the back so the actual leg seam can
be as short as the waistband. The split leg style is definitely a more
performance style, as it offers the greatest range of motion to the runner, and
inseams are typically shorter, starting at about 1" for men and women (note that
measurements always very by brand and manufacturer).
Full split shorts: The full split in the short
allows for complete freedom in the runners stride.
Some runners use athletic hot pants as running shorts.
Like 1/2 split seam shorts, hot pants do not encumber leg movement.
Lycra running shorts are an
alternative to conventional, polyester-based shorts. In most cases, lycra
running shorts reach the mid-thigh area. They are skin-tight, so they allow for
more flexible, unencumbered movement. You may want to also learn about
compression shorts which can also be worn
for running and other forms of exercise. The classic running shorts
feature an eased, loose fit, as opposed to the snug fit of compression shorts.
When selecting running shorts, you may want to also
consider visibility. It is probably a good idea to utilize bright colors
and reflective or glow in the dark properties.
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