Sports sci­ence and train­ing news

Athletics Weekly - - News -

HIP AND KNEE PROB­LEMS COULD CAUSE PAINFUL FEET

IF FOOT pain has been in­ter­rupt­ing your train­ing, it could be prob­lems with your hip or knee joints that are to blame.

Re­searchers at the US Hospi­tal for Special Surgery (HSS) and Har­vard Med­i­cal School set out to set out to find if there was a link be­tween foot pain and lower ex­trem­ity joint pain. Their find­ings sug­gest a strong as­so­ci­a­tion be­tween foot pain and ex­ist­ing hip or knee pain.

It also demon­strates the im­por­tance of the ‘ki­netic chain’, the the­ory that the body’s joints and seg­ments have an ef­fect on one an­other dur­ing move­ment, play­ing a key role in pain.

“Study­ing the in­ter­ac­tion be­tween the knee and the foot, or the hip and the foot is very im­por­tant be­cause it’s a ki­netic chain,” says Dr Rock Posi­tano, direc­tor of the non-sur­gi­cal foot and an­kle ser­vice at HSS. “The foot is the first part of the body that makes con­tact with the ground. Its pri­mary func­tion is a shock ab­sorber. If the shock-ab­sorb­ing ca­pa­bil­ity of the foot is some­how al­tered or min­imised, it’s go­ing to af­fect other body parts.”

The study used data from the 2181 peo­ple who had par­tic­i­pated in the gov­ern­ment­funded Fram­ing­ham Foot Study be­tween 2002 and 2008. It re­vealed that in the study, 16% of par­tic­i­pants re­ported bi­lat­eral foot pain, 6% right foot pain only and 5% left foot pain only. Slightly more women than men re­ported foot pain.

Re­searchers found that foot pain was linked with bi­lat­eral and same-side knee pain in both men and women. Men with right foot pain, for ex­am­ple, were five to seven times more likely to have pain in their right knee or in both knees.

Foot pain was also as­so­ci­ated with hip pain on the same side in men whereas women with bi­lat­eral foot pain were more likely to have hip pain on both or ei­ther sides.

Har­vard study: found strong ev­i­dence for the ki­netic chain

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