The relationship between hallux dorsiflexion and ankle joint complex frontal plane kinematics: A preliminary study

Halstead, J., Turner, D. E., & Redmond, A. C. (2005).

Clinical Biomechanics, 20(5), 526–531.

http://doi.org/10.1016/j.clinbiomech.2005.01.004

https://www.researchgate.net/publication/7900146

abst

It has been suggested that the function of the first metatarsophalangeal joint may be related to the motion of the ankle joint complex. This study explored the relationship between ankle joint complex and first metatarsophalangeal joint motion during gait in a group of 14 who demonstrated clinically limited passive hallux dorsiflexion in quiet standing (cases), and 15 matched controls. An electromagnetic tracking system was used to measure the ankle joint complex frontal plane motion and first metatarsophalangeal joint sagittal plane motion during gait, in both cases and controls. The case group was then evaluated further to investigate the effect of an orthosis on first metatarsophalangeal joint motion. The correlation between maximum ankle joint complex eversion and maximum first metatarsophalangeal joint dorsiflexion during gait was r=0.471. Within the case group, maximum rearfoot eversion was reduced following the application of the orthoses, but there was no change in sagittal first metatarsophalangeal joint rotations. The relationship between maximum ankle joint complex eversion and first metatarsophalangeal joint dorsiflexion kinematics found in this study was moderate, and decreasing maximum ankle joint complex eversion with an orthosis did not result in any increase in first metatarsophalangeal joint dorsiflexion during gait in patients with functional first metatarsophalangeal joint limitation. These results do not support the assumption that ankle joint complex eversion influences first metatarsophalangeal joint motion substantially.

最初の中足指節関節の機能は、足首関節複合体の動きに関連している可能性があることが示唆されています。この研究では、静かに立った状態で臨床的に制限された受動的趾背屈を示した14人のグループ（症例）と15人の一致した対照群で、歩行中の足首関節複合体と最初の中足指節関節運動との関係を調査しました。電磁追跡システムを使用して、足首関節の複雑な前頭面運動と、歩行中の最初の中足指節関節矢状面運動を、症例と対照の両方で測定しました。次に、症例グループをさらに評価して、最初の中足指節関節運動に対する装具の効果を調査しました。歩行中の最大足首関節複合体外転と最大最初の中足指節関節背屈との相関はr = 0.471でした。症例群内では、装具の適用後に最大後足外転が減少したが、矢状の最初の中足指節関節の回転に変化はなかった。この研究で見つかった最大足首関節複合体外転と最初の中足指節関節背屈運動学との関係は中程度であり、装具による最大足首関節複合体外転の減少は、機能的な最初の中足指節を有する患者の歩行中の最初の中足指節関節背屈の増加をもたらさなかった共同制限。これらの結果は、足首関節の複雑な外転が最初の中足指節関節の動きに実質的に影響を与えるという仮定を支持していません。

keywords

Foot；First metatarsophalangeal joint；Ankle；Kinematics；Gait analysis