Kontribusi Kekuatan Otot Lengan Terhadap Hasil Servis Atas Bola Voli Siswa Ekstrakurikuler SMKN 6 Pekanbaru

The Purpose Of This Research To Determine The Contribution Of arm Muscle Strenght To The Outcomes Of Service For Students Extracurricular Volley Ball SMKN 6 Pekanbaru, The Method Of This Research Conducted Is The Corrlation With Populations Of Studens SMKN 6 Pekanbaru And The Sample Of This Research Consist Of Students. Sampling Technique To Used In This Research Is Total Sampling, And Instrument This Research Used Push-Up Test And Service Test, Data Collected To Analyzed Used Product Moment Statistics (rxy) Is Signifikan Level Of 5%, obtained The Value Of rh= 0,61 And rt = 0,553 Thus rh>rt, Obtained Percentage of 38,21%. So The Conclusion In This Research Is There Are Any Contribution Between The Strength Of The Service Result Of The Volley Ball Extracurricular Of Students. Keywords : Arm Muscle Strength, Upper Service VolleyBal