Introduction:　The　concept　of　CORE　emerged　in　mechanical-neurological　studies　of　rehabilitation　in　the　80s,　referring　to　the　central　muscles　of　the　human　trunk,　including　the　lumbar-pelvis-abdominal-perineal-hip　complex　responsible　for　the　body　orthostatic　stability　and　support.　Strengthening　the　CORE　has　received　increasing　attention　from　sports　medicine　specialists　after　the　2000s,　and　strength　training　is　the　subject　of　recent　research　in　competitive　sports.　However,　there　is　still　a　lack　of　conceptual　studies　of　protocols　for　training　focused　on　soccer　athletes.　Objective:　Verify　a　CORE　strength　training　protocol　based　on　the　analysis　of　the　CORE　training　concept,　its　main　functions,　and　introductory　practical　examples.　Methods:　Literature　data　collection,　experimental　and　statistical-mathematical　methods,　and　theoretical　analysis　about　CORE　training　focused　on　explosive　strength　performance　in　soccer　players　are　used.　The　developed　protocol　experiments　with　44　athletes,　divided　into　experimental　and　control　groups,　by　sex.　Information　is　collected　on　goal　shooting,　30-meter　pass,　balance,　stability,　and　symmetry.　Results:　The　group　experienced　better　results　in　both　sexes(P＜0.05).　Conclusion:　The　explosion　strength　indicators　of　the　players　were　significantly　improved.　Whether　male　or　female　athletes,　the　higher　the　skill　level,　the　stronger　the　CORE　stability　in　players.　Therefore,　the　CORE　stability　and　strengthening　in　athletes　promote　a　benefit　in　the　technical　level　of　soccer　players.