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Table 6 Description of used marker set

From: Assessing effects of exoskeleton misalignment on knee joint load during swing using an instrumented leg simulator

Marker name

Placement description

FTx

FT sensor on top rim front (marks positive x-direction)

FTConn*

FT sensor on top of connector block

FTBlat

FT sensor on top rim lateral-back side (relative to orthosis lateral/medial definition)

FTBack

FT sensor on top rim mid back

FTFL*

FT sensor on top rim front lateral (relative to orthosis lateral/medial definition)

FTFM

FT sensor on top rim front medial (relative to orthosis lateral/medial definition)

AxisLat

Lateral point physical axis leg joint

AxisMed

Medial point physical axis leg joint

ULTop*

Top marker on upper leg—frame mounting connector

ULFront

Front marker on upper leg—frame mounting connector

ULBack

Back marker on upper leg—frame mounting connector

LowerLegBack*

Marker at mid back of circular weight

LowerLegLat

Marker at most lateral position of circular weight

LowerLegMed

Marker at most medial position of circular weight

XULLFrame

Orthosis UpperLeg lateral location on frame fixation point

XULMFrame

Orthosis UpperLeg medial location on frame fixation point

XULM1*

Upper marker placed on medial upper orthosis frame

XULM2

Middle marker placed on medial upper orthosis frame

XULMJoint

Marker at the upper part of the medial joint plate of the orthosis

XULL1*

Upper marker placed on lateral orthosis frame

XULL2

Middle marker placed on lateral orthosis frame

XULLJoint

Marker at the upper part of the lateral joint plate of the orthosis

XLLMJoint

Marker at the lower part of the medial joint plate of the orthosis

XLLM1*

Middle marker placed on medial lower orthosis frame

XLLM2

Lower marker placed on medial lower orthosis frame

XLLLJoint

Marker at the lower part of the lateral joint plate of the orthosis

XLLL1*

Middle marker placed on lateral lower orthosis frame

XLLL2

Lower marker placed on lateral lower orthosis frame

XLLRopeAttachment

Mid back marker on lower strap of lower leg part orthosis, where rope is attached

1D_ForceSensor1

Proximal (to leg) top point on sensor

1D_ForceSensor2

Distal top point on sensor

1D_ForceSensor3

Proximal bottom point on sensor

1D_ForceSensor4

Distal bottom point on sensor

  1. Markers marked with an asterisk were not used for the calculations in this article but were placed for potential reconstruction of missing markers and further analysis. Markers FTFM, FTBack, FTBLat and FTx define the FT sensor segment, AxisMed, AxisLat, ULFront and ULBack define the upper ILS segment, AxisMed, AxisLat, LowerLegMed and LowerLegLat define the lower ILS segment, XULMJoint, XULLJoint, XULM2 and XULL2 define the upper orthosis segment, XULMJoint, XULLJoint, XLLM2 and XLLL2 define the lower orthosis segment, and XLLRopeAttachment, 1D_ForceSensor1, 1D_ForceSensor2, 1D_ForceSensor3 and 1D_ForceSensor4 define the tensile force sensor segment
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Journal of NeuroEngineering and Rehabilitation

ISSN: 1743-0003

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