Lower Extremity Coordination Pattern Stability During a Single-leg Hop for Distance

<p>Author's abstract: This study was conducted to evaluate the coordination pattern stability of the lower extremity during a single-leg hop for distance, a commonly used tool in athletic rehabilitation programs and return-to-activity decisions. A dynamical systems analysis was utilized to examine single-leg hop performance of bilaterally healthy individuals and participants with unilateral chronic ankle instability (CAI). Each participant performed ten single-leg hops for distance on each leg while kinematic data were collected during takeoff and landing. Statistical comparisons of coordination pattern stability, using a deviation phase (DP) measurement, were made between groups (healthy vs. chronic ankle instability) and between leg segment couples (foot-shank, shank-thigh and thighpelvis ). There were no statistical differences between the dominant and nondominant legs of the healthy participants. Comparison of the CAI and healthy participants revealed a statistical trend towards increased DP values in the CAI involved foot-shank couple when compared to the healthy foot-shank.</p>

Name thesis:degree_name

Master of Science in Kinesiology (M.S.)

Level thesis:degree_level

Thesis (restricted to Georgia Southern)

Discipline thesis:degree_discipline

Department of Health and Kinesiology

Year dc:date.available

2005

Author dc:creator

• Blum, Aaron

Contributors dc:contributor

• Barry Munkasy
• A. Barry Joyner

• ETD
• chronic ankle instability
• relative phase dynamics
• dynamical systems
• functional performance test
• deviation phase
• Analytical, Diagnostic and Therapeutic Techniques and Equipment
• Investigative Techniques
• Medicine and Health Sciences

Repository record dc:identifier

https://digitalcommons.georgiasouthern.edu/etd/926

OAI identifier oai:identifier

oai:digitalcommons.georgiasouthern.edu:etd-1952