The Effect of External Ankle Support on Vertical Ground-Reaction Force and Lower Body Kinematics
| Autor: | S C. Cobb, Brad Hodgson, Laurie L. Tis, Elizabeth J. Higbie |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Orthodontics
medicine.medical_specialty Rehabilitation Vertical ground reaction force Biophysics Physical Therapy Sports Therapy and Rehabilitation Kinematics Total knee Lower body medicine.anatomical_structure Loading rate Physical therapy medicine Orthopedics and Sports Medicine Force platform Ankle Range of motion Mathematics |
| Zdroj: | Journal of Sport Rehabilitation. 14:301-312 |
| ISSN: | 1543-3072 1056-6716 |
| DOI: | 10.1123/jsr.14.4.301 |
| Popis: | Objective:To examine the effects of external ankle support on vertical ground-reaction forces (VGRF) and kinematic data.Methods:Subjects completed 2 braced and 2 nonbraced 0.61-m hanging drop landings onto a force platform. Kinematic data were collected with 8 digital-optical cameras sampling at 120 Hz.Subjects:12 Division I female volleyball players.Statistical Analysis:A repeated-measures ANOVA with Bonferroni correction (P < .05) was used to determine whether significant differences existed between test conditions for peak VGRF, loading rate, hip angle, knee angle, and ankle angle at right-foot contact for peak 1 and peak 2 of the VGRF curve over the first 100 milliseconds of the landing phase, as well as total hip range of motion (ROM), total knee ROM, and total ankle ROM for the entire landing phase.Results:There were significant increases in peak P1 and LR1 and a significant decrease in ankle-angle change at right-foot contact in braced trials compared with the nonbraced condition. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|