摘要：Target of this research to know how big contribution by parsial and also veterbra hyperextension simultan, strength of stomach muscle, and neck to ability of heading at player of football of SSB UNNES. this Population Research is entire/all player of football of SSB UNNES amounting to 20 people. Technique intake of sampel use total technique of sampling, that is counted 20 sampel. Free variable in this research is veterbra hyperextension, strength of stomach muscle, and neck while variable tied in this research is ability of heading. Hereinafter obtained to be data to be analysed by using analysis of regresi doubled. Result of this research indicate that by parsial veterbra hyperextension, strength of stomach muscle, and neck give contribution which is to ability of heading at player of football of SSB UNNES. By simultan veterbra hyperextension, strength of stomach muscle, and neck give big contribution to ability of heading .
其他摘要：Tujuan penelitian ini untuk mengetahui seberapa besar sumbangan secara parsial maupun simultan hiperekstensi togok, kekuatan otot perut, dan leher terhadap kemampuan heading pada pemain sepakbola SSB UNNES. Populasi penelitian ini adalah seluruh pemain se
