scholarly journals Gender Differences among Sagittal Plane Knee Kinematic and Ground Reaction Force Characteristics during a Rapid Sprint and Cut Maneuver

2004 ◽  
Vol 75 (1) ◽  
pp. 31-38 ◽  
Author(s):  
C. Roger James ◽  
Phillip S. Sizer ◽  
David W. Starch ◽  
Thurmon E. Lockhart ◽  
James Slauterbeck
2018 ◽  
Vol 30 (3) ◽  
pp. 387-392 ◽  
Author(s):  
Junya Aizawa ◽  
Kenji Hirohata ◽  
Shunsuke Ohji ◽  
Takehiro Ohmi ◽  
Kazuyoshi Yagishita

2000 ◽  
Author(s):  
Nader Arafati ◽  
Jean Yves Lazennec ◽  
Roger Ohayon

Abstract Human movement modeling has been the object of much research for the past 30 years. In these models the position of foot link was fixed on the ground. We propose to model the feet links as variable, since the position of foot pressure center changes from heel to toes. The ground reaction forces could also be analyzed in real time. We examined this model for some static postures. In standing anatomical position, the maximum articular forces are localized in hip and knee joints. In sagittal plane, the ground reaction force vectors are positioned nearly under ankle joints. The pathological postures like body with pes cavus or with global spine kyphosis increase the articular and muscular forces. In these cases, the position of ground reaction force vectors is moved toward the toes.


2016 ◽  
Vol 49 (9) ◽  
pp. 1705-1710 ◽  
Author(s):  
Nader Farahpour ◽  
AmirAli Jafarnezhad ◽  
Mohsen Damavandi ◽  
Abbas Bakhtiari ◽  
Paul Allard

2013 ◽  
Vol 38 (2) ◽  
pp. 160-166 ◽  
Author(s):  
Hassan Saeedi ◽  
Mohammad E Mousavi ◽  
Basir Majddoleslam ◽  
Mehdi Rahgozar ◽  
Gholamreza Aminian ◽  
...  

Background:Due to blocking of pronation/dorsiflexion in flexible flat foot and restriction of these movements in using the University of California Berkeley Laboratory orthosis, provided pressures in sole by the orthosis were increased. Therefore, this article describes the evaluation of modified foot orthosis with flexible structure in the management of individuals with flexible flat foot.Case description and method:The patient was a 21-year-old male who had symptomatic flat foot. The modified foot orthosis included movable surface and the outside structure. The modified foot orthosis was evaluated by standing foot X-ray, comfort rate, electromyography of leg muscle and vertical ground reaction force during walking.Findings and outcomes:The modified foot orthosis improved the foot alignment and decreased the symptoms of flat foot with more comfort. Subtalar position by sub-maximum supination had higher position than neutral in sagittal plane. It may increase the muscle activity of peroneus longus by 7% compared to barefoot, and there was a decrease of 11% ground reaction force in mid stance.Conclusion:The result of this single case evaluation only proposed the feasibility of this modified insole as the orthotic treatment in flexible flat foot.Clinical relevanceThe modified foot orthosis, which is mobile in the midfoot, is an orthosis for walking and standing in subjects with flexible flat foot.


2015 ◽  
Vol 47 ◽  
pp. 959
Author(s):  
Michele LeBlanc ◽  
Bryce Truver ◽  
Michael Soucy ◽  
Jason Kacena ◽  
Kristen Prosser ◽  
...  

2017 ◽  
Vol 53 ◽  
pp. 236-240 ◽  
Author(s):  
Amir Ali Jafarnezhadgero ◽  
Mahdi Majlesi ◽  
Elaheh Azadian

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