Reliability of lumbar multifidus ultrasound assessment during the active straight leg raise test

1. Plaza-Manzano, G.
2. Navarro-Santana, M.J.
3. Valera-Calero, J.A.
4. Fabero-Garrido, R.
5. Fernández-de-las-Peñas, C.
6. López-de-Uralde-Villanueva, I.