Author ORCID Identifier
ORCiD: 0000-0002-4535-0325
Advisor Information
Jennifer M Yentes
Location
Criss Library, University of Nebraska at Omaha
Presentation Type
Poster
Start Date
1-3-2019 12:30 PM
End Date
1-3-2019 1:45 PM
Abstract
Vertical jumping is one of the popular ways to evaluate ankle-knee efficiency in athletic population. Arm swing can play a crucial role in enhancing vertical jump performance. This study aimed to address the differences in kinetic and kinematic parameters during countermovement jump motion with arm swing (AS) and no arm swing (NAS). We used OpenSim to examine the efficacy of AS in reducing the impulse applied to the body and changes in range of lower limb joint angles at landing instant. We calculated the maximum vertical peak of the ground reaction force and impulse generated at landing in two different conditions (AS and NAS). Participants were asked to perform ten countermovement jumps, five for AS and five for AS. We measured kinematics and kinetics by using motion capture and ground reaction forces using a force treadmill. Means and standard deviations of kinetic and kinematic outcomes were calculated across conditions. Hip and ankle power were significantly higher during NAS compared to AS condition at landing instant. The results of this study showed that AS jump could reduce the generated powers at the ankle and hip joints during instant landing compared to the NAS condition. This could be due to the compensatory role of the shoulder and elbow joints to prepare the body for the landing phase. The study did not have enough statistical power to reveal differences between other kinetic and kinematic components of jumping, which could be further enhanced by increasing the sample size.
Included in
Health Information Technology Commons, Medical Humanities Commons, Medical Sciences Commons, Other Medicine and Health Sciences Commons, Physical Sciences and Mathematics Commons, Psychiatry and Psychology Commons, Rehabilitation and Therapy Commons, Sports Sciences Commons, Translational Medical Research Commons
THE EFFECT OF ARM SWING ON COUNTERMOVEMENT VERTICAL JUMP PERFORMANCE
Criss Library, University of Nebraska at Omaha
Vertical jumping is one of the popular ways to evaluate ankle-knee efficiency in athletic population. Arm swing can play a crucial role in enhancing vertical jump performance. This study aimed to address the differences in kinetic and kinematic parameters during countermovement jump motion with arm swing (AS) and no arm swing (NAS). We used OpenSim to examine the efficacy of AS in reducing the impulse applied to the body and changes in range of lower limb joint angles at landing instant. We calculated the maximum vertical peak of the ground reaction force and impulse generated at landing in two different conditions (AS and NAS). Participants were asked to perform ten countermovement jumps, five for AS and five for AS. We measured kinematics and kinetics by using motion capture and ground reaction forces using a force treadmill. Means and standard deviations of kinetic and kinematic outcomes were calculated across conditions. Hip and ankle power were significantly higher during NAS compared to AS condition at landing instant. The results of this study showed that AS jump could reduce the generated powers at the ankle and hip joints during instant landing compared to the NAS condition. This could be due to the compensatory role of the shoulder and elbow joints to prepare the body for the landing phase. The study did not have enough statistical power to reveal differences between other kinetic and kinematic components of jumping, which could be further enhanced by increasing the sample size.