@thesis{thesis,
		author={Nasution  Asrul},
		title ={Kontribusi Explosive Power Otot Tungkai Terhadap Kecepatan Lari Sprint 50 Meter Pada Siswa Kelas V SDIP YLPI Pekanbaru},
		year={2019},
		url={https://repository.uir.ac.id/9536/},
		abstract={The purpose of this study was to determine the contribution of leg muscle
explosive power to the 50 meter Sprint running speed of the fifth grade students of
YLPI Pekanbaru. This type of research is correlational. The population in this
study is the population in this study is the fifth grade students of YLPI Pekanbaru
Elementary School, amounting to 31 male students and 32 girls. The sample
technique in this study was purposive sampling where students were only taken
from male students so the number of samples was 31 students. From calculations
using the formula product moment correlation, the following values are obtained:
r count of 0.629. The value of r table at n = 31 or df = 29 (5%) is 0.355. The
comparison results are obtained under r count> r table or 0.629> 0.355. The
coefficient of determination is 39.6%. The conclusion of this research is that there
is a contribution of explosive power in leg muscles and the speed of Sprint
running 50 meters in grade V students of SDIP YLPI Pekanbaru by 39.6%.}
		}