Quantitative MRI of vastus medialis, vastus lateralis and gluteus medius muscle workload after squat exercise: comparison between squatting with hip adduction and hip abduction - Baffa, Augusto P.; Felício, Lilian Ramiro; Saad, Marcelo C.; Nogueira-Barbosa, Marcello Henrique; Santos, Antônio Carlos dos; Grossi, Débora Bevilaqua (Journal of Human Kinetics, 2012)