Yog vim li cas football thom khwm ntev heev

Qhov ntev ntawm cov thom khwm ncaws pob yog qhov ntev, qee cov thom khwm ncaws pob hauv caug tuaj yeem ncav cuag ntau dua 50 centimeters ntev, ntau tus phooj ywg tsis paub vim li cas cov thom khwm ncaws pob tsim kom ntev, qhov tseeb, qhov no tsuas yog los tiv thaiv cov players. .

Kev ncaws pob tseem ceeb heev rau kev tiv thaiv ko taw. Tom qab tag nrho, kev sib ntaus ntawm ko taw yog nquag heev, yog li ntau tus neeg ncaws pob yuav hnav cov ceg tawv los tiv thaiv lawv cov nyuj. Cov thom khwm ncaws pob yog tsim los ntev heev los kho cov ceg tawv thiab tiv thaiv kom tsis txhob poob.

Rau cov neeg ncaws pob uas tsis hnav lub ntsej muag, cov thom khwm ntev tuaj yeem tiv thaiv cov ceg qis kom tsis txhob khawb los ntawm khau spikes lossis nyom ntawm qhov chaw ncaws pob.