More than 200,000 US cases per year.
ACL injury is usually a
non-contact injury that occurs when an individual stops suddenly or plants
his or her foot hard into the ground (cutting). ACL injury also has
been linked to heavy or stiff-legged landing; the knee rotating while
landing, especially when the knee is in an unnatural position or bent
inward. Significantly, many ACL injuries occur in athletes landing flat on
their heels. Women in sports such as football,
basketball, soccer, gymnastics, and
tennis are significantly more prone
to ACL injuries than men. The discrepancy has been attributed to gender
differences in anatomy, general
muscular strength, reaction time of muscle contraction and coordination, and
in ACL injury rates become evident when specific sports are compared. A
review of NCAA data has found relative rates of injury per 1000 athlete
exposures as follows:
basketball 0.07, women's basketball 0.23
0.12, women's lacrosse 0.17
0.09, women's football 0.28
The highest rate
of ACL injury in women occurred in gymnastics, with a rate of injury per
1000 athlete exposures of 0.33! Of the four sports with the highest ACL
injury rates, three were women's – gymnastics, basketball and soccer.
recent studies, female athletes are two to eight times more likely to strain
their anterior cruciate ligament (ACL) in sports that involve cutting and
jumping as compared to men.
Studies show that exercises to strengthen leg
muscles and learning how to land and cut will lower ACL injuries 70%.
Here is a video on how to tell if you are at
Here is a video of example of tearing injury to
Here are some videos of exercises you can do to
lower your chances of injury.
Down load very good video of exercises.
As the videos
will show you, try to keep knees in line and not bent inward "Valgus".
A lot of the
exercises are with hip control and strength because poor hip control causes
knees to come inward.
land correctly is important.