A novel physical activity and sedentary behavior classification and its relationship with physical fitness in Spanish older adults: The PHYSMED study

1. Aparicio-Ugarriza, R.
2. Pedrero-Chamizo, R.
3. Bibiloni, M.D.M.
4. Palacios, G.
5. Sureda, A.
6. Meléndez-Ortega, A.
7. Tur Marí, J.A.
8. González-Gross, M.