Qee cov neeg ua haujlwm hnav khau tiv thaiv thiab tshwj xeeb tshaj yog hnav thiab pob taws. Qhov no yog ib qho xwm txheej. Nkawm khau tau hnav thiab tus nqi ntawm nkawm khau yog ntau heev hauv lub neej. Kev hnav ntawm lub luj taws tuaj yeem cuam tshuam lub zog ntawm cov leeg thaum peb taug kev. Txawm li cas los xij, yog tias nkawm khau kev tuav pov hwm kev ua haujlwm tsis tuaj yeem hnav hauv 2-3 lub hlis, nws tsis yog tshwm sim los ntawm kev coj tus cwj pwm, uas yog, ko taw mob. Yog li kev mus ntsib kws kho mob tsis yog tsuas yog saib ntawm ko taw xwb, tab sis kuj txog cov khau. Thaum ib tug neeg taug kev, lub zog txoj kev txav mus los ntawm pob taws, tom qab ntawd mus rau sab nraud ntawm ko taw, tom qab ntawd mus rau tus ntiv taw thib tsib, thiab thaum kawg mus rau tus ntiv tes xoo. Lub pob taws yog qhov tseem ceeb tshaj plaws ntawm kev tsom xam, thiab 40% yog faib rau hauv qab ntawm pob taws. Thaum lub pob taws nyob rau hauv av, lub hind ko taw yog me ntsis tig tawm sab nraud, thiab sab nraud ntawm pob taws kov hauv av, ua rau lub zog hauv av yuav nyob rau sab nraud ntawm pob taws. Qhov no yog vim li cas cov neeg feem coob nyiam rub lub pob taws, tshwj xeeb tshaj yog sab nraud ntawm pob taws. Ib tug me me ntawm cov neeg sib tsoo ntau dhau lawm, los yog qib ntawm kev hnav tsis zoo, nws zoo li tus kab mob tau ua rau txoj kev taug kev tsis raug.
Yog hais tias sab hauv ntawm lub koov ntawm kev pov hwm kev ua haujlwm ib leeg pom tau hnav sai dua, nws feem ntau yog tiaj tus. Cov ko taw "flat" ko taw muaj qhov elasticity me me, lub ko taw ntawm ko taw tawg, thiab qhov nruab nrab ntawm ko taw ncaj qha mus rau hauv av, thiab sab hauv ntawm lub koov yuav hnav ntau dua. Hnyav hnav, feem ntau yog vim muaj ntau dhau ntawm koov lossis lub duav thiab lub hauv caug. Cov neeg uas muaj tus kab mob congenital spinal los yog hip dysplasia feem ntau yuav hnav rau sab nraud ntawm pob taws. Thaum tus neeg mob pob taws los yog "tawm yim-legged" taug kev, lub cev qhov hnyav yuav ua rau sab hauv ntawm ko taw, uas ua rau pom qhov hnyav hnyav rau sab nraud ntawm pob taws. Lub pob taws hnav sab nraud thiab ceeb toom rau "yim-legged ob txhais ceg". Ib tug neeg uas muaj ib daim duab ntawm yim lub cim nyob rau hauv txoj kev taug kev posture, siab dua nyob rau sab nraud ntawm ko taw, yuav ua rau kom lub cev hnav ntawm sab nraud ntawm pob taws ntawm cov khau ua haujlwm. Lub koov ntawm ko taw siab dhau mus zom rau sab nraud ntawm lub forefoot, thiab tus neeg nrog tus ntiv tes xoo valgus feem ntau grinds pem hauv ntej sab hauv; thaum lub sij hawm tag nrho ntawm kev tuav pov hwm kev ua hauj lwm ib leeg yog tshwj xeeb tshaj yog muaj zog nyob rau hauv lub forefoot, feem ntau yog cov kab mob ntawm ncauj tsev menyuam los yog lumbar.
Ob lub khau muaj qhov sib txawv ntawm kev hnav thiab tej zaum yuav yog cov kab mob neurological lossis mob stroke precursors. Ua ntej mob stroke ntawm lub paj hlwb los yog thaum muaj kab mob hauv lub paj hlwb, nws feem ntau yog ib qho ko taw uas rub lwm ko taw mus taug kev. Vim tias ob txhais ceg txav sib txawv, ib kauj ruam yog rub, yog li ntawm ib sab ntawm cov kauj ruam yog hnav me ntsis, thiab sab ntawm tus rub yog hnav.
Cov tib neeg ib txwm hnav cov khau tiv thaiv, uas nyob rau hauv ib txwm muaj nyob rau hauv ib nrab xyoo ntawm kev sib tsoo, thiab qee zaum sab nrauv hnav me ntsis ntau dua li sab hauv. Raws li cov xwm txheej ib txwm muaj, yog tias cov khau tshiab uas tau txais kev tuav pov hwm kev ua haujlwm tau hnav tsis pub dhau ib nrab nti ntawm hnav rau ib nrab xyoo, lawv feem ntau zoo li qub, thiab cov neeg mob ko taw yuav hnav cov khau hauv 2-3 hli. Ib tug neeg yuav tsum muaj tsawg kawg yog ob nkawm khau kev tuav pov hwm kev ua haujlwm, thiab txhua nkawm khau kev nyab xeeb yuav tsum tsis txhob hnav ntev dua 3 lub lis piam.