1. Adler SS (1976) Influence of »Joint Approximation« on lower extremity extensor muscles: an EMG study (Unpublished thesis presented at APTA annual conference, New Orleans)
2. Eberhart HD, Inman VT, Bresler B (1954) The principal elements in human locomotion. In: Klopteg PE, Wilson PD (Hrsg) Human limbs and their substitutes. McGraw-Hill, New York
3. Götz-Neumann K (2003) Gehen verstehen – Ganganalyse in der Physiotherapie. Thieme, Stuttgart
4. Horak FB, Nashner LM (1986) Central programming of postural movements: adaptation to altered support-surface configurations. J Neurophysiol 55(6):1381
5. Horst R (2005) Motorisches Strategietraining und PNF. Thieme, Stuttgart