Limb Differences in Lower Extremity Biomechanics During a Drop-landing and Cutting PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Limb Differences in Lower Extremity Biomechanics During a Drop-landing and Cutting PDF full book. Access full book title Limb Differences in Lower Extremity Biomechanics During a Drop-landing and Cutting by Derek J. Eversley. Download full books in PDF and EPUB format.
Author: Derek J. Eversley
Publisher:
ISBN:
Category : Anterior cruciate ligament
Languages : en
Pages : 96
Get Book Here
Book Description
Author: Derek J. Eversley
Publisher:
ISBN:
Category : Anterior cruciate ligament
Languages : en
Pages : 96
Get Book Here
Book Description
Author: Lori L. Webster-Dahl
Publisher:
ISBN:
Category : Ground reaction force (Biomechanics)
Languages : en
Pages : 74
Get Book Here
Book Description
Author: Behrang Behjoo
Publisher:
ISBN:
Category :
Languages : en
Pages : 43
Get Book Here
Book Description
PURPOSE: The main objective of this study was to compare energy absorption and power production between the preferred and non-preferred lower limb during a drop jump tasks. METHODS: A total of 44 active subjects (22 males, 22 females) participated. Energy absorption and power production were measured for both lower limbs during five 0.45 m drop jumps. Two separate repeated measures ANOVAs compared energy absorption during the landing phase, and power production during the propulsion phase between the two limbs. RESULTS: There was a main effect of limb (P
Author: Tamara Emeline Tompkins
Publisher:
ISBN:
Category : Leg
Languages : en
Pages : 0
Get Book Here
Book Description
Introduction: Specific movement patterns at the hip, knee and ankle during dynamic landing tasks have been associated with an increased risk of lower extremity injury. Training strategies have shown to be favourable in decreasing the risk of injury through addressing movement patterns that have been associated with increased injury risk. Objective: To determine differences in lower limb kinematics during three separate bilateral landing tasks (Drop Jump, Drop Landing, Slow Step Down) between female athletes and non-athletes. Methods: Lower extremity kinematic data were obtained using the Xsens MVN motion capture system for 12 university athletes, and 14 university non-athletes. Three-dimensional joint angles were determined for the hip, knee, and ankle at the instant of landing, and peak angles were determined throughout both landings. Peak angular velocities of the hip, knee and ankle joints, and minimum distance between the knees were found during landing. Jumping variables including jump height, ground contact time, flight time, reactive strength index, landing knee distance, minimum knee distance, and landing ankle distance were also analyzed. Results: The athletes, in general, landed with less plantarflexion at the ankle (p
Author: Hannah L. Price
Publisher:
ISBN:
Category :
Languages : en
Pages : 70
Get Book Here
Book Description
Author: Jennifer A. Spencer
Publisher:
ISBN:
Category :
Languages : en
Pages : 64
Get Book Here
Book Description
Author: AuraLea Carylon Fain
Publisher:
ISBN:
Category : Leg
Languages : en
Pages : 78
Get Book Here
Book Description
"Introduction: Musculoskeletal injuries are ever-increasing in military personnel, particularly females. These musculoskeletal injuries are attributed to adaptations in lower limb biomechanics while performing routine military tasks, such as a single-leg cut, with the addition of body borne load. However, it is unknown if females and males exhibit similar lower limb biomechanics with the addition of body borne load during these tasks. This study sought to compare the lower limb biomechanical adaptations exhibited by females and males performing a single-leg cut with body borne load. Methods: Eleven females and 17 males had lower limb biomechanics quantified during a single-leg cut with four body borne load conditions (20, 25, 30 and 35 kg). Each participant performed five successful cuts off each limb (dominant and non-dominant). Statistical Analysis: For analysis, initial contact (IC) and peak stance (PS) hip, knee and ankle 3D rotations and PS moments, and peak proximal tibial shear were calculated. Each variable was submitted to a RM ANOVA to test main and interaction effects of sex (male, female), load (20, 25, 30 and 35 kg), and limb dominance (dominant vs. non-dominant). Results: Body borne load increased peak proximal anterior tibial shear force (p = 0.011). However, females exhibited significantly greater proximal tibial shear with the 25 kg configuration compared to the 20 kg configuration (p = 0.028), while males exhibited greater peak proximal tibial shear force with 35 kg configuration compared to 20 kg (p = 0.04) and 25 (p = 0.011) kg configurations. During the cut, females exhibited significantly greater IC and PS hip adduction angle (p = 0.016 and p = 0.015), and PS hip adduction (p
Author: Lior Laver
Publisher: Springer Nature
ISBN: 3662610701
Category : Medical
Languages : en
Pages : 1018
Get Book Here
Book Description
This book is designed as a comprehensive educational resource not only for basketball medical caregivers and scientists but for all basketball personnel. Written by a multidisciplinary team of leading experts in their fields, it provides information and guidance on injury prevention, injury management, and rehabilitation for physicians, physical therapists, athletic trainers, rehabilitation specialists, conditioning trainers, and coaches. All commonly encountered injuries and a variety of situations and scenarios specific to basketball are covered with the aid of more than 200 color photos and illustrations. Basketball Sports Medicine and Science is published in collaboration with ESSKA and will represent a superb, comprehensive educational resource. It is further hoped that the book will serve as a link between the different disciplines and modalities involved in basketball care, creating a common language and improving communication within the team staff and environment.
Author: Nicholas Romanchuk
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Despite the higher incidence of anterior cruciate ligament injuries in pediatric female populations, limited research has investigated sex-differences in youth biomechanics. Furthermore, research involving jump mechanics typically requires participant to follow a set protocol, such as sticking the landing. To reduce variability and improve reliability, trails where participants fail to meet the required protocol are discarded; however, significant clinical findings may be elucidated from these trials. The purpose of this thesis was to provide a complete biomechanical analysis of unanticipated single-leg drop-jump landings in youth athletes. Thirty-two healthy youth athletes completed unanticipated single-leg drop-jump landings on their dominant limb. Trials where participants shifted foot position or touched the ground with the contralateral leg were categorized as failed. Drop-jump landings were time-normalized using landmarks within the drop-jump task. Statistical parametric mapping (SPM) determined time-varying sex-differences in muscle onset time, co-activation, kinematics and kinetics. Wilcoxon signed-rank tests and paired sample t-tests compared lower-limb kinematics, centre-of-mass excursion and muscle activation amplitudes during the successful and failed landings. A logistic regression model was also fit to predict the likelihood of a successful landing. SPM identified significantly greater trunk flexion angle in males during the deceleration, flight, and landing phase of the drop-jump. Greater quadriceps-gastrocnemius co-activation was identified during the flight phase in female participants and independent sample t-test identified longer muscle onset time in the vastus lateralis of male participants. When comparing failed and successful landings greater hip abduction and less external rotation angles were observed during the successful trials. In addition, greater preparatory muscle activation was observed in the rectus femoris and semitendinosus during the flight phase of the failed landings. A logistic regression model, which included eight kinematic and neuromuscular variables, offered a training classification accuracy of 70% and a leave-one-out cross-validation accuracy of 65%. In conclusion, females land in a more erect posture and may be less effective at dissipating landing forces. In addition, greater co-activation and shorter pre-activations of the lower limb musculature may indicate a less effective muscle activation strategy in females. Furthermore, hip kinematics and the surrounding musculature play an important role in controlling successful and failed unanticipated landings. The variables included in the logistic regression model indicate which key factors are linked to landing a jump successfully. Training modalities aimed at improving landing mechanics should therefore focus on modifying these variables.
Author: Mark Schwartz
Publisher: BoD – Books on Demand
ISBN: 953307793X
Category : Medical
Languages : en
Pages : 549
Get Book Here
Book Description
This first of two volumes on EMG (Electromyography) covers a wide range of subjects, from Principles and Methods, Signal Processing, Diagnostics, Evoked Potentials, to EMG in combination with other technologies and New Frontiers in Research and Technology. The authors vary in their approach to their subjects, from reviews of the field, to experimental studies with exciting new findings. The authors review the literature related to the use of surface electromyography (SEMG) parameters for measuring muscle function and fatigue to the limitations of different analysis and processing techniques. The final section on new frontiers in research and technology describes new applications where electromyography is employed as a means for humans to control electromechanical systems, water surface electromyography, scanning electromyography, EMG measures in orthodontic appliances, and in the ophthalmological field. These original approaches to the use of EMG measurement provide a bridge to the second volume on clinical applications of EMG.
