Relationship between Static Mobility of the First Ray and First Ray, Midfoot, and Hindfoot Motion during Gait

Allen, Mary K.; Cuddeford, Tyler; Glasoe, Ward M.; DeKam, Lisa M.; Lee, Pamela J.; Wagner, Kelli J.; Yack, H. John

doi:10.1177/107110070402500605

Cited by 40 publications

(48 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In agreement with reports based on surface markers [20,23,25,31,[39][40][41] as well as bone pins [42], our results showed that the calcaneus undergoes rapid pronation in early stance. In order to examine the contribution of each moving segment to relative motion between the two segments, joint kinematics were expressed in two different ways.…”

Section: Discussionsupporting

confidence: 82%

See 1 more Smart Citation

Segmental foot mobility in individuals with and without diabetes and neuropathy

Rao

Saltzman

Yack

2007

Clinical Biomechanics

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Discussionsupporting

confidence: 82%

“…The few studies that have used multisegment kinematic models [20,[23][24][25] have been conducted on non-DM subjects with intact sensation. Their extrapolation to subjects with DM, who have impairments such as loss of protective sensation and increased connective tissue stiffness, may not be valid.…”

Section: Introductionmentioning

confidence: 99%

Segmental foot mobility in individuals with and without diabetes and neuropathy

Rao

Saltzman

Yack

2007

Clinical Biomechanics

Self Cite

View full text Add to dashboard Cite

show abstract

“…Note Figure 3, especially between HO and TS (late stance), where plantar flexion (7°) and eversion (12°) are the primary rotations. A similar pattern of biplanar joint motion has been recorded in gait trials [8,12].…”

Section: Discussionsupporting

confidence: 71%

“…Adduction of the first ray was increased (≥ 5°) in women with bunion, and the joint axis inclined by as much as 30°f rom the horizontal during simulated gait. Although this past work described a potential mechanism of bunion, inclination of the axis or other anatomical risk factors [12][13][14][15] that alter the loading behaviours of the first ray can only be treated if identified with clinical measurements.…”

Section: Introductionmentioning

confidence: 99%

Prediction of the First Ray Axis from Clinical Measurements: Implications for the Treatment of Bunion

M¹

2014

Clin Res Foot Ankle

View full text Add to dashboard Cite

Objective: Inclination of the first ray axis has been identified as a risk factor of bunion, but the actual orientation of a joint axis can only be quantified with motion analysis techniques. This investigation used a single-group regression design for the purpose of identifying a surrogate measure, or system of measurements, that could predict the orientation of the first ray axis. Methods:The clinical measurements of the foot were performed on 20 women participants including 10 with, and 10 without bunion. Magnetic resonance images of the foot were acquired while the participant stood to simulate gait. Images were then rendered into virtual datasets from which first ray kinematics were decomposed into X, Y, and Z Cardan angles and helical axis direction cosine component parameters. Reliability of the clinical measurements was assessed, and multiple regression analysis determined the relationship amongst variables.Results: Measurements of dorsum foot height, hallux dorsiflexion, hallux angle, intermetatarsal angle, and arch angle were reliable (ICC ≥ 0.67) and when used as variables in the regression analysis models, the curvilinear measure of hallux dorsiflexion and the linear measure of hallux angle combined to explain a significant (p=0.01) 49 percent (R2=0.49) of the overall variance in predicting the first ray axis. Conclusion:Five of the clinical measurements, all except navicular drop and hindfoot valgus were judged reliable. Of these, only hallux dorsiflexion and hallux angle had a relationship with the first ray axis. This report marks the first attempt to identify measures that predict the loading behaviors of the first ray. Results may inform future work, as it is likely some other combination of measurements may more strongly predict inclination of the first ray axis which may, in theory, be amendable with non-operative treatment (i.e. orthoses) in the management of foot bunion.

show abstract

“…It allows the impact of different pathologies on all functional units to be studied. Since the use of static foot measurements to predict dynamic foot function remains questionable, [42][43][44][45][46][47][48][49][50][51] getting a dynamic measurement of these units is essential.…”

Section: Discussionmentioning

confidence: 99%

A clinically applicable six‐segmented foot model

Mits

Segers

Woodburn

et al. 2011

Journal Orthopaedic Research

View full text Add to dashboard Cite

We describe a multi-segmented foot model comprising lower leg, rearfoot, midfoot, lateral forefoot, medial forefoot, and hallux for routine use in a clinical setting. The Ghent Foot Model describes the kinematic patterns of functional units of the foot, especially the midfoot, to investigate patient populations where midfoot deformation or dysfunction is an important feature, for example, rheumatoid arthritis patients. Data were obtained from surface markers by a 6 camera motion capture system at 500 Hz. Ten healthy subjects walked barefoot along a 12 m walkway at self-selected speed. Joint angles (rearfoot to shank, midfoot to rearfoot, lateral and medial forefoot to midfoot, and hallux to medial forefoot) in the sagittal, frontal, and transverse plane are reported according to anatomically based reference frames. These angles were calculated and reported during the foot rollover phases in stance, detected by synchronized plantar pressure measurements. Repeated measurements of each subject revealed low intra-subject variability, varying between 0.78 and 2.38 for the minimum values, between 0.58 and 2.18 for the maximum values, and between 0.88 and 5.88 for the ROM. The described movement patterns were repeatable and consistent with biomechanical and clinical knowledge. As such, the Ghent Foot model permits intersegment, in vivo motion measurement of the foot, which is crucial for both clinical and research applications. Keywords: multi-segment foot model; foot and ankle kinematics; gait analysis; Ghent Foot Model Multi-segmented foot models can provide better insight into foot kinematics (and to a less extent segmental foot kinetics) during gait than single segments models. Clinically, they are used to describe and analyze functional characteristics associated with foot impairments. A number of multi-segmented foot models, using either bone pins or surface markers, have been proposed. They vary according to the number of segments and functional unit definition, in the methods of calculating intersegment angles, and in the definition of the neutral foot reference position. 1,2The need exists for a clinically relevant, user-friendly multi-segment foot model that would include the lower leg, hindfoot, midfoot, medial and lateral forefoot, and the hallux, with wide utility to investigate single joint/segment joint dysfunction through to complex foot deformities. Models with <5 segments often can not describe whole foot kinematics. [3][4][5][6][7] In contrast, those with nine segments 8 are not always easily applicable in clinical settings. To our knowledge and based upon a recent review, 2 no such model is currently available.There are two main reasons why a 6 segment model is clinically relevant. First, these segments are examined clinically by physical therapists and podiatrists. The medial arch, formed by the rearfoot (talus), the medial part of the midfoot, and the first ray, plays an important role in foot function during weight bearing activities. 9 Different arch configurations are an intrinsic ris...

show abstract

Relationship between Static Mobility of the First Ray and First Ray, Midfoot, and Hindfoot Motion during Gait

Cited by 40 publications

References 23 publications

Segmental foot mobility in individuals with and without diabetes and neuropathy

Segmental foot mobility in individuals with and without diabetes and neuropathy

Prediction of the First Ray Axis from Clinical Measurements: Implications for the Treatment of Bunion

A clinically applicable six‐segmented foot model

Contact Info

Product

Resources

About