Association of physical activity with muscular strength and fat-free mass in adolescents: The HELENA study

1. Moliner-Urdiales, D.
2. Ortega, F.B.
3. Vicente-Rodriguez, G.
4. Rey-Lopez, J.P.
5. Gracia-Marco, L.
6. Widhalm, K.
7. Sjöström, M.
8. Moreno, L.A.
9. Castillo, M.J.
10. Ruiz, J.R.