Kinetic analysis of canine gait on the effect of failure tendon repair and tendon graft

Cheng, Yu-Shiuan; Reisdorf, Ramona L.; Vrieze, Alyssa; Moran, Steven L.; Amadio, Peter C.; An, Kai Nan; Zhao, Chunfeng

doi:10.1016/j.jbiomech.2017.10.041

Cited by 3 publications

(3 citation statements)

References 22 publications

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“…PSW system has been used in both healthy [36,25] and lame [16,17,37] dogs and the reference data have been obtained. Using especially PVF data, the data of the dogs with orthopedic problems have been compared.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of gait character of Akbaş and Kangal shepherd dogs by using pressure-sensitive walkway

Gündemir¹,

Alpak²,

Erdikmen³

et al. 2020

Turk J Vet Anim Sci

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Introduction Kangal and Akbaş shepherd dogs have been registered as breeds by the Turkish Standards Institution. Both breeds are used as shepherd dogs [1]. These two breeds are included in the class of strongly built dogs among dog breeds worldwide. However,, previous studies have reported that there are differences between these two breeds in terms of both growth characteristics and body characteristics. It has been reported that the Kangal shepherd dog is a more strongly built dog compared to Akbaş shepherd dogs [2]. Motion is defined as the change of location by an object. Motion analysis systems are used in assessing a motion numerically. Walking analysis is one of these systems. By means of the numerical results provided by walking analysis, the anomalies in walking or the disruptions that may not be noticed by veterinary physician are detected [3,4]. One of the most preferred applications of walking analysis is the video recording method. Assessments are made through images in the computer environment and information is obtained about the morphometry of walking. This method is used in the walking analysis of animals [5]. Also, markers are placed on the motion points of animals and data such as their step rate, distance, and number may be obtained [6]. Although this method is practical and cheap, the data obtained are limited and therefore this method is used as an auxiliary for other walking methods. In kinematic analyses, numerical data such as body movements, joint angles, and rates may be obtained. In this method, special cameras and computer systems are also used [7,8]. Also, by special devices placed on plantar, parameters such as the force values applied to the ground and step times may be obtained [9,10]. For the diagnosis of neuromuscular diseases, electromyography may also be used in addition to walking analysis methods. With this method, assessments may be performed by combining the activities and kinetic and kinematic data of muscles during motion [11,12]. Walking plates, another example of walking analysis systems, are used with animals and plantar force values are obtained. Force platform and pressure-sensitive systems may be given as examples of these walking systems. Pressure-sensitive systems can measure the pressure

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Section: Discussionmentioning

confidence: 99%

Evaluation of gait character of Akbaş and Kangal shepherd dogs by using pressure-sensitive walkway

Gündemir¹,

Alpak²,

Erdikmen³

et al. 2020

Turk J Vet Anim Sci

View full text Add to dashboard Cite

show abstract

“…The frequently occurring traffic accidents, cardiovascular and cerebrovascular events, and the increasing aging of the population in our society have led to the presence of large numbers of potentially or apparently unstable gait holders. Moreover, in the available studies, cases of decreased gait stability or abnormal gait due to disease [1][2][3] and surgery [4,5] have been reported. Falls and their secondary injuries caused by instability of gait often have serious consequences.…”

Section: Introductionmentioning

confidence: 99%

Effect of Different Ankle-Foot Immobility on Lateral Gait Stability in the Stance Phase

Fan

Hatanaka

2022

Applied Bionics and Biomechanics

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Background. This study aimed to investigate the effect of limited foot and ankle mobility on the lateral stability of gait through the observation of the mediolateral margin of stability and related kinematic parameters. Methods. Thirty young, healthy participants walked at a fixed gait velocity on a level surface. Participants achieved different degrees of restricted mobility by wearing soft-soled shoes (S), an ankle-foot orthosis with unrestricted dorsiflexion-plantarflexion activity only (A), and an ankle-foot orthosis with unrestricted dorsiflexion-plantarflexion and adjustable horizontal rotation of the foot (OU/OR). Furthermore, the spatiotemporal parameters, mediolateral margin of stability, center of pressure, angle of the fore and hind foot relative to the tibia, and correlation coefficients of the factors were analyzed. Regression analysis was also performed. Results. At right heel strike, group A had a significantly lower mediolateral margin of stability than group S and group OU. Meanwhile, forefoot adduction (0.2 < | r | <0.4) and plantarflexion (0.2 < | r | <0.4), as well as hindfoot internal rotation (0.2 < | r | <0.6) and inversion (0.2 < | r | <0.4), correlated negatively with lateral stability. Regression analysis revealed forefoot dorsiflexion and supination were the main independent variables for group A. At right heel off, groups OU and OR had a significantly lower mediolateral margin of stability than those in groups A and S. Forefoot adduction (0.2 < | r | <0.4) and dorsiflexion (0.4 < | r | <0.6) were correlated with lateral stability, as were hindfoot dorsiflexion (0.2 < | r | <0.4) and inversion (0.2 < | r | <0.4). Regression analysis revealed forefoot abduction and plantarflexion were the main independent variables for groups OU and OR. Conclusions. The present study verified from gait data that forefoot dorsiflexion and supination at the initial contact of the stance phase were relevant factors for the differences in lateral gait stability, whereas abduction and plantar flexion of the forefoot at the terminal stance phase were the main influencing factors of lateral gait stability.

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“…In addition, the real walking environment can present complex road conditions, multi-directional disturbances, multi-task walking, as well as sound and light stimulation [5]. Increased cases of decreased gait stability or gait abnormalities due to disease have been widely reported [6][7][8][9][10]. Among the many effectors, foot and ankle immobility is one of the primary factors causing differences in gait stability in children [11], adults, the elderly [12], patients, and even exoskeletal walking assistive devices [13].…”

Section: Introductionmentioning

confidence: 99%

Influence of Ankle-Foot Orthoses and Ankle-Foot Joint Immobility on Gait Stability

Fang¹,

Hatanaka²

2022

saj

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Background/Aims: In this study, we observed the effects of orthotics and ankle immobility on lateral stability to establish screening procedures for people with potential fall risk, assess the effect of foot and ankle abnormalities on gait stability, and determine the balance between functionality and stability in the design of orthotics. Methods: We examined 19 young, healthy participants while walking at a fixed gait velocity on a level surface. To calculate the medial-lateral margin of stability (ML MoS), the center of mass (CoM) moving velocity and base of support (BoS) were analyzed. We also examined factors that influenced a significant difference in the medial-lateral components v x of the CoM moving velocity to obtain the ground reaction force (GRF), joint angles, joint moments, and co-relation of joints. The significant differences in these indicators by gait events were used to verify the effects of different foot and ankle conditions and the wearing of different ankle-foot orthoses (AFO) on the lateral stability of gait events in different stance phases. Results: The ML MoS differed significantly at right heel strike (RHS). In addition, the ML MoS of each of the 19 participants in this study was significantly different immediately before the left heel strike (pre-LHS). However, due to the large heterogeneity of the disturbance generated by the abnormal motion of the ankle joint at pre-LHS, a consistent pattern of differences between groups was not obtained. Conclusions: Limited ankle inversion-eversion and adduction-abduction, combined with poorer foot rigidity, resulted in significantly lower lateral stability in the initial stance phase (at RHS). The angular difference between dorsiflexion and pronation, as well as the greater CoM lateral velocity, are the main reasons for the low lateral stability at this moment. These could be the targeted gait events and ankle movements for further research, treatment, and training.

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Kinetic analysis of canine gait on the effect of failure tendon repair and tendon graft

Cited by 3 publications

References 22 publications

Evaluation of gait character of Akbaş and Kangal shepherd dogs by using pressure-sensitive walkway

Evaluation of gait character of Akbaş and Kangal shepherd dogs by using pressure-sensitive walkway

Effect of Different Ankle-Foot Immobility on Lateral Gait Stability in the Stance Phase

Influence of Ankle-Foot Orthoses and Ankle-Foot Joint Immobility on Gait Stability

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