The relationship among the center of pressure, muscle activity, and joint angle during single-leg standing and landing
Presenter Type
UNO Graduate Student (Masters)
Major/Field of Study
Biomechanics
Other
Athletic Training
Advisor Information
Christopher Burcal
Location
MBSC Ballroom Poster # 908 - G (Masters)
Presentation Type
Poster
Start Date
24-3-2023 2:30 PM
End Date
24-3-2023 3:45 PM
Abstract
Balance requires muscle contraction to maintain the center of pressure within the base of support depending on the postural sway. People use two strategies for muscle activation, ankle strategy and hip strategy, to adapt the environment or intrinsic factors. During jump landing, muscles also work as absorbers with eccentric contraction, especially gluteus medius, quadriceps, and calf muscles at the hip, knee, and ankle joints. However, few studies investigated the relationship between muscle activity and COP during single leg balance, and muscle activity and joint angle during single leg landing. This study investigated the relationship between muscle activity and COP during single leg balance. Also, we investigated the relationship between muscle activity and joint angles of the lower extremity during single leg landing. 20 healthy college students participated in this cross-sectional study. We measured muscle activity using EMG and COP while single leg standing task. In addition, we measured muscle activity and joint angles while single leg landing. We calculated Pearson’s correlation.
Scheduling
2:30 -3:45 p.m.
The relationship among the center of pressure, muscle activity, and joint angle during single-leg standing and landing
MBSC Ballroom Poster # 908 - G (Masters)
Balance requires muscle contraction to maintain the center of pressure within the base of support depending on the postural sway. People use two strategies for muscle activation, ankle strategy and hip strategy, to adapt the environment or intrinsic factors. During jump landing, muscles also work as absorbers with eccentric contraction, especially gluteus medius, quadriceps, and calf muscles at the hip, knee, and ankle joints. However, few studies investigated the relationship between muscle activity and COP during single leg balance, and muscle activity and joint angle during single leg landing. This study investigated the relationship between muscle activity and COP during single leg balance. Also, we investigated the relationship between muscle activity and joint angles of the lower extremity during single leg landing. 20 healthy college students participated in this cross-sectional study. We measured muscle activity using EMG and COP while single leg standing task. In addition, we measured muscle activity and joint angles while single leg landing. We calculated Pearson’s correlation.