Open Access. Powered by Scholars. Published by Universities.®

Kinesiology Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 2 of 2

Full-Text Articles in Kinesiology

The Effect Of The Walking Speed On The Stability Of The Anterior Cruciate Ligament Deficient Knee, Nikolaos Stergiou, Constantina O. Moraiti, Giannis Giakas, Stavros Ristanis, Anastasios D. Georgoulis Nov 2004

The Effect Of The Walking Speed On The Stability Of The Anterior Cruciate Ligament Deficient Knee, Nikolaos Stergiou, Constantina O. Moraiti, Giannis Giakas, Stavros Ristanis, Anastasios D. Georgoulis

Journal Articles

Background. The reasons behind the development of future pathology in individuals with anterior cruciate ligament deficiency are unknown. This is due to the lack of appropriate methods to assess functional dynamic knee stability. In this study, we investigated the effect of walking speed on the functional dynamic stability of the anterior cruciate ligament deficient knee. We defined functional dynamic stability as local stability or the sensitivity of the knee to small perturbations. The natural stride-to-stride variations that exist during locomotion reflect exactly the presence of these perturbations. We hypothesized that speed will affect local stability in the deficient knee, …


Walking And Running In The Red-Legged Running Frog, Kassina Maculata, Anna N. Ahn, E Furrow, Andrew A. Biewener Jan 2004

Walking And Running In The Red-Legged Running Frog, Kassina Maculata, Anna N. Ahn, E Furrow, Andrew A. Biewener

All HMC Faculty Publications and Research

Although most frog species are specialized for jumping or swimming, Kassina maculata (red-legged running frog) primarily uses a third type of locomotion during which the hindlimbs alternate. In the present study, we examined Kassina's distinct locomotory mode to determine whether these frogs walk or run and how their gait may change with speed. We used multiple methods to distinguish between terrestrial gaits: the existence or absence of an aerial phase, duty factor, relative footfall patterns and the mechanics of the animal's center of mass (COM). To measure kinematic and kinetic variables, we recorded digital video as the animals moved …