Gait kinematics during exoskeleton walking
| . | 0.8 L* . | . | 1.0 L* . | . | 1.2 L* . | . | 1.4 L* . | . | . | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Metric . | UNPOW . | POW . | UNPOW . | POW . | UNPOW . | POW . | UNPOW . | POW . | Speed/step length P value (THSD) . | ||||
| Step length (mm) | 572±6 | 565±9 | 723±8 | 715±10 | 854±12 | 841±13 | 980±12 | 967±9 | P<0.0001* 1.4>1.2,1.0,0.8 1.2>1.0,0.8 1.0>0.8 | ||||
| Step width (mm) | 123±8 | 127±12 | 111±10 | 111±12 | 107±6 | 113±10 | 123±11 | 125±9 | P=0.002* 1.4>1.2,1.0,0.8 1.2<0.8 1.0<0.8 | ||||
| Step period (ms) | 570±5 | 570±6 | 570±5 | 570±6 | 568±6 | 565±6 | 568±5 | 566±4 | P=0.13 | ||||
| Double support period (ms) | 146±5 | 144±5 | 132±5 | 133±5 | 116±4 | 117±3 | 106±3 | 106±4 | P<0.0001* 1.4<1.2,1.0,0.8 1.2<1.0,0.8 1.0<0.8 | ||||
| . | 0.8 L* . | . | 1.0 L* . | . | 1.2 L* . | . | 1.4 L* . | . | . | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Metric . | UNPOW . | POW . | UNPOW . | POW . | UNPOW . | POW . | UNPOW . | POW . | Speed/step length P value (THSD) . | ||||
| Step length (mm) | 572±6 | 565±9 | 723±8 | 715±10 | 854±12 | 841±13 | 980±12 | 967±9 | P<0.0001* 1.4>1.2,1.0,0.8 1.2>1.0,0.8 1.0>0.8 | ||||
| Step width (mm) | 123±8 | 127±12 | 111±10 | 111±12 | 107±6 | 113±10 | 123±11 | 125±9 | P=0.002* 1.4>1.2,1.0,0.8 1.2<0.8 1.0<0.8 | ||||
| Step period (ms) | 570±5 | 570±6 | 570±5 | 570±6 | 568±6 | 565±6 | 568±5 | 566±4 | P=0.13 | ||||
| Double support period (ms) | 146±5 | 144±5 | 132±5 | 133±5 | 116±4 | 117±3 | 106±3 | 106±4 | P<0.0001* 1.4<1.2,1.0,0.8 1.2<1.0,0.8 1.0<0.8 | ||||
Values are means ± s.e.m., N=9; see Materials and methods for calculations
UNPOW, unpowered exoskeletons; POW, powered exoskeletons. Step length(speed): 0.8 L* (1.00 ms–1), 1.0 L*(1.25 ms–1), 1.2 L* (1.50 ms–1),1.4 L* (1.75 ms–1). L* is preferred step length at 1.25 ms–1
P<0.05 indicates statistical significance. *Statistical power >0.80. THSD, Tukey's honestly significant difference