The purpose of this research is to know the tungsten muscle explosive and bone length on the result of 100 meters sprint for the pupils in class X.1 of Senior High School 2 Rengat Barat Indragiri hulu. This research is a correlational research. The populations of this research are the pupils from Senior High School 2 Rengat Barat Indragiri Hulu. The samples in this research are 13 pupils in c…