(19-07-10) How Hip Exercises Reduce Knee Pain

New research shows that a twice weekly hip strengthening regimen proved
effective at reducing or eliminating the kind of knee pain referred to as
patellofemoral pain (PFP) in female runners. Stronger hips may correct running
form errors that contribute to PFP.
The study used a pain scale of 0 to 10, with 3 representing the onset of pain
and 7 representing very strong pain. The injured runners began the six-week
trial registering pain of 7 when they ran on a treadmill, and finished the
study period registering pain levels of 2 or lower.
According to Science Daily:
"PFP, one of the most common running injuries, is caused when the thigh bone
rubs against the back of the knee cap. Runners with PFP typically do not feel
pain when they begin running, but once the pain begins, it gets increasingly
worse ... PFP essentially wears away cartilage and can have the same effect as
osteoarthritis."
Vigorous physical activity in young children results in stronger hip bones.
More than 200 six-year olds participated in a study. Researchers measured bone
mass and analyzed the structure of the hip and thigh bone. Physical activity
was assessed for seven days.
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According to Science Daily:
"The results showed that there was a relationship between time spent in
vigorous activity and strength of the femoral neck, both in terms of shape and
volumetric mineral density. This was independent of other factors such as diet,
lifestyle and physical size."


Sources:

Science Daily June 7, 2010

Science Daily June 6, 2010

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