Postural Adjustments and Biomechanics During Gait Initiation and Obstacle Negotiation: A Comparison Between Akinetic-Rigid and Hyperkinetic Parkinson’s Disease oleh Marcela Zimmermann Casal, Leonardo Alexandre Peyré-Tartaruga, Ana Paula Janner Zanardi, André Ivaniski-Mello, Lucas de Liz Alves, Aline Nogueira Haas, Flávia Gomes Martinez