@article {1406539,
	title = {Mobility related physical and functional losses due to aging and disease - a motivation for lower limb exoskeletons},
	journal = {Journal of NeuroEngineering and Rehabilitation},
	volume = {16},
	number = {1},
	year = {2019},
	author = {Grimmer, M. and Riener, R. and C. J. Walsh and Seyfarth, A.}
}
