A CASE STUDY - DETERMINING THE MUSCLE IMBALANCE OF THE JUNIORS 3 IN HURDLES EVENTS THROUGH BIODEX SYSTEM 4 PROTM

• Main Authors: G.A. ONEA, L. BALINT, D. OPREA
• Format: Article
• Language: English
• Published: Editura Universitatii Transilvania din Brasov 2018-12-01
• Series: Bulletin of the Transilvania University of Braşov: Series IX Sciences of Human Kinetics
• Subjects: hurdles; muscle imbalance; agonist-antagonist ratio
• Online Access: http://webbut.unitbv.ro/bulletin/Series%20IX/2018/BULETIN%20I/13_ONEA-final.pdf

A case study was undertaken to determine the agonist - antagonist ratio of the lower limb of the junior athletes three according with the technical demands of the leading leg and trail leg from hurdles events. The leading leg during the hurdles events is using the flexion/extension of the knee while the trail leg movements are more complex including: abduction of the hip, shoulder external rotation. Our study consists in a total of five variables tested using Biodex System ProTM such as: knee extension/flexion, ankle plantar/dorsiflexion, hip extension /flexion, hip abduction / adduction and shoulder internal / external rotation at different speeds (60°/s 120°/s, 180°/s. 300°/s, 450 °/s). We have compared speeds for each variable to determine differences between right and left leg. In addition, this study aimed to create a more objective image of the agonist - antagonist ratio for the leading/trail leg during hurdles race for junior athletes 3.