Table 1.

Classification of BWST literature based on nature of unloading force and walking environment. BWS studies based on individuals with neuromuscular impairment (NI group) are indicated in bold

	Treadmill-based	Overground
Modulated BWU	Franz 2007 [32], Franz 2008 [71], Van Thuc 2015 [124], Munawar 2016 [125] – 4 studies	Morbi 2012 [130], Fenuta 2014 [49], Fenuta 2014a [99] - 3 studies
Unmodulated BWU	Finch 1991 [43], Farley 1992 [61], Donelan 1997 [60], Kram 1997 [62], Dietz 1997 [100], Harkema 1997 [22], Dietz 1998 [101], Colby 1999 [94], Hesse 1999 [85], Stephens 1999 [78], Griffin 1999 [93], Danielsson 2000 [95], Ferris 2001 [75], Ivanenko 2002 [79], Threlkeld 2003 [84], Grabowski 2005 [96], Ferris 2004 [97], Van Hedel 2006 [80], David 2006 [46], Phadke 2007 [24], Thomas 2007 [81], McGowan 2008 [92], Aaslund 2008 [26], McGowan 2009 [76], Lewek 2010 [73], Klarner 2010 [47], Kuno 2012 [52], Goldberg 2013 [90], Delussu 2014 [48], Meyns 2014 [120], Van Kammen 2014 [83], Worthen-Chaudhari 2015 [45], Swinnen 2015 [50], Dragunas 2016 [12], Van Kammen 2016 [51] – 35 studies	Patino 2007 [86], Sousa 2009 [8], Burgess 2010 [87], Wang 2011 [98], Serrao 2012 [74], Barela 2014 [91], Fischer 2015 [88], Fischer 2015 a [102], Hurt 2015 [44], Fischer 2016 [109], Mun 2016 [89], Ye 2016 [122] – 12 studies

^aindicates two different publications by the same author/s in the same year. Studies by David et al. and Delussu et al. were conducted on GaitTrainer, a stepping plate based device [46, 48]