Download or read book The Effects of a Functional Knee Brace on Lower Extremity Kinetics Kinematics and Temporal Spatial Characteristics written by Brian M. Campbell and published by . This book was released on 2002 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Running with a Functional Knee Brace on Lower Extremity Joint Moments of Force in Anterior Cruciate Ligament Injured Subjects written by Pamela Blankenship Hunter and published by . This book was released on 1990 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Functional Knee Brace Migration written by Jonathan C. Singer and published by . This book was released on 2005 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Three Dimensional Knee Joint Kinematics and Lower Limb Muscle Activity of Anterior Cruciate Ligament Deficient Knee Joint Participants Wearing a Functional Knee Brace During Running written by Daniel Théoret and published by . This book was released on 2005 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biomechanical Efficacy of Knee Bracing on Joint Kinetics and Kinematics Postural Steadiness and Wearing Perception written by Rong Liu and published by . This book was released on 2016 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new method was developed to assess the postural steadiness by means of F-scan plantar pressure system. The duration of time of single-leg stance (TSLS) was recorded under different bracing conditions; and foot sway degree was obtained in terms of the tested peak contact plantar pressure and the calculated standard deviation of instaneous pressure change rate (S.D. of ICRpp) during SLS. The results indicated that the application of knee bracing significantly increased the duration time during SLS by 15.81-29.88 sec., and significantly reduced the foot sway degree by 14.3-42.9% in SLS, especially for the braces BI and BIV, as compared with non-braced condition. It implied that the intervention of the tested knee bracing could improve the joint-position sense (proprioception) and the postural control in static position. The subjective assessment was conducted by applying the designed questionnaires with fifteen Liker items covering 5 aspects, including wearing comfort and fitting, tactile perception, wear behavior, support and stable feeling, and preferences towards knee bracing products. The results indicated that the participants preferred the knee bracing with low profile appearance, simple and stylish design and easy to operate. The knitted supportive knee braces (pullover BI and BII with bilateral spiral stands) were more acceptable with significantly higher scores on aspects of 'wearing comfort', 'fitting', 'freedom in movement' and 'satisfied handle of shell materials'. Wraparound shell structure and mechanical supporting elements (e.g. non-elastic straps and bilateral hinges) allowed the braces BIII and BIV to generate more stable feel at the knee joint and to be more easily donned on and off; while more time was consumed and potential limitations could exist in knee extension-flexion movement. The findings from the current study enhanced the understanding on biomechanical efficacy of knee bracing on joint kinetics and kinematics, postural control and subjective wearing perception, and provided a valuable foundation for the following design and development of new knee bracing with improved therapeutic function and wearing comfort for lower extremities.

Download or read book Effects of Unilateral Knee Bracing on Kinematics and Kinetics of Lower Extremities During Drop Landing written by Madeline Gougeon and published by . This book was released on 2013 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Ankle Bracing on Knee Joint Kinematics and Kinetics During Repeated Single Leg Hop and Drop Vertical Jump in High School Aged Girls written by Virginia Norene Christensen and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Background: Ankle bracing has not been studied for its effects of knee joint kinematics and kinetics in the adolescent female athlete. Hypothesis: A) A statistically significant mean increase of knee joint valgus and extensor moments and valgus angles would be found in the braced group during the drop vertical jump and the single log hop tests and B) A statistically significant mean decrease in knee joint varus and extensor moments and valgus angles will be found between pre- and post-test acclimation periods in the braced condition. Study Design: Randomized Controlled Trial. Methods: Fifteen adolescent female athletes performed Drop Vertical Jump (DVJ) and Single Leg Hop (SLH) tests without ankle bracing and with a lace-up style ankle brace. Subjects wore braces over a 1 week period and retested. Results: During the DVJ, bracing increased knee extensor moments during the first 50 ms of landing but had no affect on knee frontal plane moments. Bracing increased vertical ground reaction force (vGRF) within the first 50ms of landing, and peak vGRF with less time to achieve peak vGRF. During the SLH, bracing increased knee flexion at IC and decreased knee frontal plane displacement into valgus. Ankle bracing increased vGRF within the first 50ms of landing and decreased stance time. Conclusions: Ankle bracing increased vGRF and knee extensor moments during the first 50ms of landing. Clinical Relevance: The adolscent female athlete may be at risk for knee injury during the initial landing phse when wearing a lace-up style ankle brace.

Download or read book The Influence of Knee and Ankle Bracing on Lower Extremity Kinetics and Kinematics During Jogging written by Brian M. Campbell and published by . This book was released on 2004 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Knee Bracing on Lower Extremity Muscle Activation During Functional Activity written by Megan L. Pearl and published by . This book was released on 2005 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Biomechanical Effects of a Functional Knee Brace on the Right Limb During Landings from Vertical Falls written by Kathryn Glover and published by . This book was released on 1995 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Kinematic and Kinetic Effects of Knee and Ankle Sagittal Plane Joint Restrictions During Squatting written by R. Lee Howard and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The purpose of this study was to evaluate compensatory biomechanical patterns in the lower extremity created by restricted knee flexion and ankle dorsiflexion when performing squats. Forty two healthy subjects (21 men, 21 women; 22.5 (4.5) years, 73.8 (17.8) kg, 167.5 (12.5) cm) participated in the study. Data were collected using a force plate and a 3-d electromagnetic tracking device for bilateral lower extremity analyses. Three parallel squats were performed in non braced, right knee restricted and right ankle restricted conditions. Dependent measures were hip, knee and ankle total joint displacement and work done on the hip, knee and ankle during the eccentric portion of the squat. Three repeated measures ANOVAs compared lower extremity kinematics between conditions, while one repeated measure ANOVAs evaluated lower extremity kinetics. Mean hip, knee and ankle ROM was reported, as was sagittal plane work done on the hip, knee and ankle for each condition and limb. The primary findings of this study indicate hip and ankle flexion displacement significantly decreased in the contralateral (non-braced) limb during the ankle joint restricted condition. Ipsilateral (braced) limb hip, knee and ankle flexion significantly decreased during the knee restricted condition, while ipsilateral knee and ankle flexion decreased during the ankle restricted condition. Lower extremity sagittal plane energetic changes occurred in the ipsilateral knee and ankle when the knee joint was restricted and at the ipsilateral ankle in the ankle restricted condition. Relative and absolute shifts in work done on the hip, knee and ankle when compared to the non braced squat were observed. This study may best serve as a general sagittal plane model for clinicians and coaches to reference when using the parallel squat in patients/athletes with knee and ankle dysfunction. This has practical significance to clinicians as these substitutions in work could result in overuse (secondary) injury to the compensatory site or insufficient loading to the dysfunctional site, rendering it weak and susceptible to additional primary injury or limiting the athletes maximal performance."--Abstract from author supplied metadata.

Download or read book Effects of Knee Brace on Anterior Cruciate Ligament Strain During Drop landing written by Gajendra Hangalur and published by . This book was released on 2014 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knee is one of the most commonly injured joint in the human body and majority of the injuries are associated with ligaments which have detrimental effects on joint's stability and function. Bracing has often been used as a prominent measure to restrain an unstable joint and for individuals with anterior cruciate ligament (ACL) injury as a post-operative treatment measure. However, it is not known if the brace would protect the ACL of an uninjured person during dynamic activities by reducing the strain in the ACL. Primary objective of this research study was to investigate the effects of knee brace on ACL during dynamic activities. Hence a combined in-vivo/ in-vitro methodology was used to assess the influence of “CTi-Custom” knee brace on ACL strain during drop-landing activity. Motion capture was performed on the drop-landing activity of a high-risk subject with and without knee brace worn. These in-vivo kinetic and kinematic parameters were subsequently input into a biomechanical model to calculate muscle forces that span the knee joint. A hybrid surrogate knee model was prepared using cast foam shell that was wrapped around a cadaver knee specimen to form an artificial interface for mounting a custom fit knee brace during in-vitro simulation. A strain gauge was instrumented on ACL of hybrid surrogate cadaver specimen and mounted on a dynamic knee simulator, where kinematics and muscle forces were applied replicating braced and unbraced drop-landing conditions. This simulation was performed with and without the brace mounted on the cadaver knee specimen and the ACL strain was measured. Observing biomechanical model outputs it was evident that muscle forces for braced and unbraced conditions were different and the knee brace appeared to reduce the ACL antagonist muscle forces thereby dissipating energy, consequently reducing the peak GRF and the internal joint forces. The peak strain in the ACL was radically different for braced (8% strain) and unbraced (18% strain) conditions. However, when unbraced kinetics/kinematics was simulated with brace mounted on the cadaver knee, the ACL strain was not different from the unbraced condition. This enabled us to conclude that the custom fit knee braces reduce the strain in the ACL of high-risk subjects thus preventing them from potential ACL injury. However, any decrease in the ACL strain observed while wearing the brace was due to the brace altering the muscle firing pattern rather than due to the mechanical restraint offered by the brace. This reinforces previous research findings that brace affects proprioceptive feedback and alters the muscle firing pattern.

Download or read book Effects of Knee Brace On Anterior Ligament Strain During Drop Landing written by Gajendra Hangalur and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Prophylactic Ankle Bracing on Knee and Hip Mechanics in Basketball Players During Jump Landing written by Riann K. Thayer and published by . This book was released on 2018 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: Background: Many athletes of various sports have been required to wear ankle braces for prophylactic uses. Ankle braces have been shown to decrease range of motion in all directions, which means the main force absorption mechanism of the ankle may be inhibited. This decrease in force absorption at the ankle may increase the mechanical demands at the more proximal knee and hip joints. In this study, the change in knee, hip and lower back mechanics will be investigated to gain understanding as to whether bracing the ankle could create a higher injury potential. Methods: In this study, 12 intercollegiate basketball players (6 female, 6 male) participated during one session, in which each subject tested for each taping condition (self-adherent, adhesive cloth, and no tape). For each trial, the participants performed three maximum vertical jump trials and three depth drop trials, a 15-minute bout of exercise, and subsequently three more maximum vertical jumps and three more depth drops. The participants' lower body kinematics and kinetics were measured using 3D motion capture and force plates. Results: Analysis of ankle bracing pre- and post-exercise on lower extremity kinematics and kinetics through a two-way MANOVA yielded results that were not significant for any of the variables, including their interaction effect. There was no effect of the three different types of ankle bracing (control, adhesive, and self-adhesive), exercise (pre-and post-), or the interaction of those variables on peak hip flexion, peak knee flexion, peak knee moment, peak hip moment, and peak lumbosacral moment. Conclusion: Ankle bracing had no effect on selected lower body kinematics and kinetics. More research should be done to better understand whether ankle bracing has the potential to increase injury at other joints.

Download or read book Three Dimensional Knee Joint Kinematics and Lower Limb Muscle Activity of Anterior Cruciate Ligament Deficient Knee Joint Participants Wearing a Functional Knee Brace During Running written by Daniel Théoret and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Impact of Dual Task Shooting on Knee Kinematics and Kinetics written by Gillian A. McCarren and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Background: Successful recovery from a lower extremity (LE) injury is especially important when it affects our Service men and women, who may have sustained their injury fighting for our freedom. Understanding the interaction between increased task complexity, expected of a U.S. military member, and LE movement, as evidenced by initial and maximum joint angles and vertical ground reaction forces, will allow us to understand injury risk among this population. Purpose: Investigate LE biomechanics of amateur marksmen when asked to complete dual focus shooting tasks. Methods: Vertical ground reaction force (vGRF) and knee biomechanics were measured through the use of force plates and a digital motion capture system respectivel.

Download or read book Neumann s Kinesiology of the Musculoskeletal System E Book written by Donald A. Neumann and published by Elsevier Health Sciences. This book was released on 2024-02-14 with total page 817 pages. Available in PDF, EPUB and Kindle. Book excerpt: With a focus on the normal and abnormal mechanical interactions between the muscles and joints of the body, Neumann’s Kinesiology of the Musculoskeletal System, 4th Edition provides a foundation for the practice of physical rehabilitation. This comprehensive, research-based core text explores kinesiology as it relates to physical rehabilitation in a clinically relevant and accessible manner. It presents the language of human movement — and acts as a bridge between basic science and clinical management. It helps clinicians effectively address the mechanical-based changes in movement across a person’s lifespan, whether in the context of rehabilitation, recreation, or promotion of health and wellness. Full-color anatomic and kinesiologic illustrations clearly demonstrate the anatomy, functional movement, and biomechanical principles underlying movement and posture. An eBook version, included with print purchase, provides access to all the text, figures, and references, with the ability to search, customize content, make notes and highlights, and have content read aloud. The eBook included with print purchase also features multiple excellent videos of anatomic and kinesiologic principles, answers to study questions from the print book, and additional tables and figures. Evidence-based approach emphasizes the importance of research in PT decision-making. More than 900 high-quality illustrations provide visual accompaniments to clarify the material. Clinical Connections boxes at the end of each chapter highlight or expand upon a particular clinical concept associated with the kinesiology covered in the chapter. Special Focus boxes throughout the text provide numerous clinical examples to demonstrate why kinesiologic information is needed. Critical thinking questions for selected chapters reinforce the main concepts. UPDATED! Current, evidence-based content closes the gap in kinesiology and anatomy science with clinical practice. NEW! Additional Special Focus boxes and Clinical Connections boxes present kinesiology in a clinical context. UPDATED! Modified artwork and new figures visually reinforce key concepts. NEW! An eBook version, included with print purchase, provides access to all the text, figures, and references, with the ability to search, customize content, make notes and highlights, and have content read aloud. It also features videos, answers to study questions from the print book, and additional tables and figures.