Use this URL to cite or link to this record in EThOS: https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.785463
Title: Hip and knee joints biomechanics of karate players during training and competition style kicks
Author: Al-Saeed, Riyadh
ISNI:       0000 0004 7970 9759
Awarding Body: Loughborough University
Current Institution: Loughborough University
Date of Award: 2018
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Abstract:
There is an oddity in the long-term practice of Karate as traditionally it has been an activity that can last a lifetime, but there are many people who suffer from various chronic complaints of the lower limbs. Much research has looked at acute injuries in Karate but for the most part these injuries are not to the parts of the body that suffer the chronic problems, from this it would seem likely that chronic injuries are due to repetitive training or from minor non-contact injuries repeated intermittently. The purpose of this study is to analyse the main five karate kicks (Front kick, Roundhouse kick, Side kick, Hook kick and Back kick) in three modes (Training, Competition and Competition step). 3D motion capture system (VICON) with 2 force plate has been used to measure angles and moments at the hip and knee joints for both the kicking leg and support leg. 28 healthy high level of Karate players volunteered to be part of this study. In addition, two case studies of Taekwondo players who had injuries in different joints, case one had lower back pain and case two had a left knee injury, both with more than 6-months rehabilitation were carried out. The aim of this PhD study will be to establish joint loading at the hips and knees of kicking practices in both a basic fashion and a competition type fashion. This will be performed on a wide range of adult karateka from the age range where most competitors come from. Motion and force analysis along with inverse dynamics will be performed to examine the load on the body at specific joints and comparisons made between the basic and competition modes of technique. It is hypothesised that the competition modes of training will have higher loading to the joints and thus could be more injurious if the karateka is not suitably conditioned. Highest joints loading of karate kicks were: Highest moment for the support hip(left) about the Y axis was 1.8 N.m/kg during front kick, competition mode. The next highest moment was about the X axis at 1.7 N.m/kg during front kick, competition mode and roundhouse kick, step mode. The third highest moment was about the Z axis at 1.7 N.m/kg during hook kick, step mode. Highest moment for the support knee (left) about the X axis was 1.8 N.m/kg during the front kick, step mode. Next highest moment was about the Y axis at 0.8N.m/kg during side kick, competition and step modes. The highest moment about the Z axis was 0.4 N.m/kg during roundhouse kick, training mode. Highest moment for the kicking hip(right) about the X axis was 1.2 N.m/kg during the front kick, step mode. Highest moment about the Y axis was 0.9 N.m/kg during the front kick, step mode. Highest moment about the Z axis was 0.3 N.m/kg during the front kick, step mode and the roundhouse kick, step mode. Highest moment for the kicking knee about the X axis was 1.0 N.m/kg during the front kick, step mode. Highest moment about the Y axis was 0.3 N.m/kg during the roundhouse kick, step mode, side kick, step mode, and hook kick, step mode. Highest moment about the Z axis was 0.6 N.m/kg during front kick, competition mode. Support leg has the highest joint loading moments, from this information analysed, coaches and players should focus on the supporting leg more than the kicking leg to lessen the risk of injuries and at the same time perform the kick with the kicking leg the best way. The novelty of this study is creating a 3D motion analysis database of kinematics and kinetics of healthy karate players performing the five main kicks in three different modes with analysis of both the kicking and support legs.
Supervisor: Not available Sponsor: Ministry of Higher Education and Scientific research ; Iraq
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.785463  DOI: Not available
Keywords: Medical and Health Sciences not elsewhere classified ; Biomechanics ; Kinetic ; Kinematic ; Karate ; Hip ; Knee ; Analyses ; 3D motion ; Angles ; Moments ; Lower back pain ; Hip injury ; Hip loading ; Knee Loading ; Karate kick performance ; Hyperextension knee joint ; VICON capture motion system ; C-Motion software ; Visual3D biomechanics software ; Martial arts kicks ; Kicks ; Taekwondo
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