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. 2021 Sep 9;18:136. doi: 10.1186/s12984-021-00823-5

Table 2.

Group averages for gait speed, intersegmental trajectory area, and Sobolev norm values

Group Outcome Preforce 10 N force Postforce Preforce 15 N force Postforce Cane
Gait speed (m/s) 0.27 ± 0.12 0.31 ± 0.13 0.31 ± 0.14* 0.24 ± 0.08 0.29 ± 0.09 0.30 ± 0.10* 0.31 ± 0.15
LF Area (deg2) 6.2 ± 3.0/1.6 ± 1.1 7.6 ± 4.0/1.9 ± 0.9 7.7 ± 4.2/1.9 ± 0.9 5.9 ± 2.4/1.6 ± 0.7 6.9 ± 2.6/1.9 ± 1.1 7.3 ± 2.8/2.2 ± 1.0 6.4 ± 3.5/1.9 ± 0.8
Sobolev norm 26.6 ± 6.9/14.4 ± 4.5 28.6 ± 7.7/15.8 ± 3.1 28.6 ± 9.5/16.1 ± 3.0 26.2 ± 6.9/13.4 ± 3.2 27.6 ± 6.1/15.3 ± 3.8* 28.3 ± 7.3/17.0 ± 4.3* 29.1 ± 9.5*/15.9 ± 3.5*
Gait speed (m/s) 0.63 ± 0.32 0.74 ± 0.35* 0.68 ± 0.36 0.66 ± 0.36 0.77 ± 0.38 0.73 ± 0.39 0.68 ± 0.36
HF Area (deg2) 12.8 ± 7.5/8.9 ± 6.9 14.2 ± 7.9/9.8 ± 7.3 13.3 ± 8.2/9.5 ± 7.0 13.1 ± 7.9/9.0 ± 7.4 15.0 ± 8.4*/9.5 ± 7.5 15.5 ± 8.8/10.2 ± 7.7 13.4 ± 8.7/9.7 ± 7.4
Sobolev norm 38.0 ± 12.9/31.5 ± 14.4 41.5 ± 14.2/33.7 ± 14.7 40.6 ± 18.2/33.1 ± 14.6 37.9 ± 15.2/31.3 ± 15.6 41.7 ± 15.6*/33.6 ± 15.3 41.1 ± 15.6/34.2 ± 14.7 38.5 ± 15.5/32.4 ± 15.3
Gait speed (m/s) 1.00 ± 0.34 1.13 ± 0.30* 1.14 ± 0.30 1.07 ± 0.33 1.19 ± 0.34* 1.15 ± 0.35 1.08 ± 0.37
CG Area (deg2) 19.4 ± 5.9/19.3 ± 7.0 21.1 ± 5.8/21.6 ± 7.1* 22.6 ± 6.9/22.0 ± 8.0 20.4 ± 5.4/20.5 ± 7.2 21.0 ± 6.4*/22.6 ± 7.6 21.9 ± 5.3/22.6 ± 8.9 20.9 ± 7.3/21.7 ± 7.7
Sobolev norm 47.5 ± 8.4/47.3 ± 9.7 51.3 ± 7.2*/50.9 ± 8.6* 51.6 ± 7.0/50.7 ± 8.0* 48.5 ± 6.8/48.9 ± 8.8 50.8 ± 6.3*/51.6 ± 8.1* 51.8 ± 7.5/51.3 ± 8.6 49.8 ± 8.9/49.1 ± 9.1

a: Average and standard deviation values for gait speed, lower limb intersegmental surface area, and Sobolev norm values for nonparetic/paretic (LF and HF) and dominant/non-dominant (CG) sides for pre-force, force, post-force epochs in 10 and 15 N leash conditions as well as the cane condition. Statistical significance is denoted by * (p < 0.05) and is relative to pre-force values