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https://www.readbyqxmd.com/read/28618311/predicting-knee-osteoarthritis-risk-in-injured-populations
#1
Michael J Long, Enrica Papi, Lynsey D Duffell, Alison H McGregor
BACKGROUND: Individuals who suffered a lower limb injury have an increased risk of developing knee osteoarthritis. Early diagnosis of osteoarthritis and the ability to track its progression is challenging. This study aimed to explore links between self-reported knee osteoarthritis outcome scores and biomechanical gait parameters, whether self-reported outcome scores could predict gait abnormalities characteristic of knee osteoarthritis in injured populations and, whether scores and biomechanical outcomes were related to osteoarthritis severity via Spearman's correlation coefficient...
June 12, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28599157/comparison-in-three-dimensional-gait-kinematics-between-young-and-older-adults-on-land-and-in-shallow-water
#2
Khalid Abdul Jabbar, Shigetada Kudo, Kee Wee Goh, Ming Rong Goh
This study investigated in three-dimensional space, firstly whether the aquatic medium and secondly ageing, had any effect on the lower limb's joint angles during aquatic-based gait. Three-dimensional joint kinematics of the lower limb of 51 healthy male participants [25 young group (24.6±4.9 years, 172.1±5.5cm, 69.8±10.3kg) and 26 older group (58.5±5.1 years, 167.9±5.1cm, 70.8±12.1kg)] were quantified during land and shallow water walking. Participants walked at their self-selected comfortable speed in both mediums...
May 20, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28593090/dynamic-hip-adduction-abduction-and-abdominal-exercises-from-the-holmich-groin-injury-prevention-program-are-intense-enough-to-be-considered-strengthening-exercises-a-cross-sectional-study
#3
Kasper Krommes, Thomas Bandholm, Markus D Jakobsen, Lars L Andersen, Andreas Serner, Per Hölmich, Kristian Thorborg
BACKGROUND: Training intensity is an important variable in strength training and above 80% of one repetition maximum is recommended for promoting strength for athletes. Four dynamic and two isometric on-field exercises are included in the Hölmich groin-injury prevention study that initially failed to show a reduction in groin injuries in soccer players. It has been speculated that exercise-intensity in this groin-injury prevention program was too low to induce the strength gains necessary to protect against groin-related injuries...
June 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28593088/the-associations-between-hip-strength-and-hip-kinematics-during-a-single-leg-hop-in-recreational-athletes-post-acl-reconstruction-compared-to-healthy-controls
#4
Jeremiah Tate, Tell Suckut, Jensen Wages, Heather Lyles, Benjamin Perrin
BACKGROUND: Only a small amount of evidence exists linking hip abductor weakness to dynamic knee valgus during static and dynamic activities. The associations of hip extensor strength and hip kinematics during the landing of a single leg hop are not known. Purpose: To determine if relationships exist between hip extensor and abductor strength and hip kinematics in both involved and uninvolved limb during the landing phase of a single leg hop in recreational athletes post anterior cruciate ligament (ACL) reconstruction...
June 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28585048/diminished-femoral-head-neck-offset-and-the-restricted-hip-range-of-motion-suggesting-a-possible-role-in-acl-injuries
#5
Abolfazl Bagherifard, Mahmoud Jabalameli, Hooman Yahyazadeh, Azadeh Shafieesabet, Kaveh Gharanizadeh, Ali Jahansouz, Parhan Khanlari
PURPOSE: Femoroacetabular impingement may be associated with anterior cruciate ligament (ACL) injuries. The purpose of this study was to determine the head-neck offset, as measured by 45° Dunn's view alpha angles, in patients with ACL injuries compared to control subjects. METHODS: In this retrospective study, 140 consecutive non-professional athletes with primary ACL ruptures confirmed with knee arthroscopy and 100 consecutive patients with non-ACL injury were enrolled...
June 5, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28578498/corr-insights-%C3%A2-knee-abduction-affects-greater-magnitude-of-change-in-acl-and-mcl-strains-than-matched-internal-tibial-rotation-in-vitro
#6
Ata M Kiapour
No abstract text is available yet for this article.
June 3, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28567148/hip-abductor-strengthening-improves-physical-function-following-total-knee-replacement-one-year-follow-up-of-a-randomized-pilot-study
#7
Karvannan Harikesavan, Raj D Chakravarty, Arun G Maiya, Sanjay P Hegde, Shivakumar Y Shivanna
BACKGROUND: Total knee replacement (TKR) is the commonest surgical procedure for patients with severe pain and impaired physical function following end stage knee osteoarthritis. The hip abductors are well renowned in stabilization of the trunk and hip during walking, maintaining the lower limb position, and transferring the forces from the lower limbs to the pelvis. OBJECTIVE: To assess the efficacy of hip abductor strengthening exercise on functional outcome using performance based outcome measures following total knee replacement...
2017: Open Rheumatology Journal
https://www.readbyqxmd.com/read/28554150/effect-of-valgus-knee-alignment-on-gait-biomechanics-in-healthy-women
#8
Matthew C Hoch, Joshua T Weinhandl
The purpose of this study was to compare lower extremity kinematics and kinetics between women with greater or lesser degrees of valgus knee alignment during gait. Nine women with greater valgus knee alignment (11.9±1.6°) were compared to nine women with lesser valgus knee alignment (6.6±2.4°). Participants completed a biomechanical assessment of overground walking for the right limb. Dependent variables included sagittal and frontal plane joint angles and moments for the hip, knee, and ankle at peak vertical ground reaction force, along with knee abduction angular impulse...
May 19, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28543791/the-association-between-eccentric-hip-abduction-strength-and-hip-and-knee-angular-movements-in-recreational-male-runners-an-explorative-study
#9
René B K Brund, Sten Rasmussen, Rasmus O Nielsen, Uwe G Kersting, Uffe Laessoe, Michael Voigt
Weak hip abductors may be related with increased hip adduction and knee abduction angular movement, which may be risk factors of lower extremity injuries. Since the role of eccentric hip abduction strength (EHAS) on hip adduction angular movement and the knee abduction angular movement (KABD) remains unclear and the purpose of the present study was to explore the association between EHAS and hip- and knee angular movement. In 100 healthy male recreational runners, EHAS was quantified using an isokinetic dynamometer, while hip- and knee angular movement were collected using pressure sensitive treadmill and Codamotion active marker system...
May 24, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28534433/skating-start-propulsion-three-dimensional-kinematic-analysis-of-elite-male-and-female-ice-hockey-players
#10
Jaymee R Shell, Shawn M K Robbins, Philippe C Dixon, Philippe J Renaud, René A Turcotte, Tom Wu, David J Pearsall
The forward skating start is a fundamental skill for male and female ice hockey players. However, performance differences by athlete's sex cannot be fully explained by physiological variables; hence, other factors such as skating technique warrant examination. Therefore, the purpose of this study was to evaluate the body movement kinematics of ice hockey skating starts between elite male and female ice hockey participants. Male (n = 9) and female (n = 10) elite ice hockey players performed five forward skating start accelerations...
May 23, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28532864/association-between-composites-of-selected-motion-palpation-and-pain-provocation-tests-for-sacroiliac-joint-disorders
#11
Manijeh Soleimanifar, Noureddin Karimi, Amir Massoud Arab
BACKGROUND: The sacroiliac joint (SIJ) has been implicated as a potential source of low back and buttock pain. Several types of motion palpation and pain provocation tests are used to evaluate SIJ dysfunction. OBJECTIVE: The purpose of this study was to investigate the relationship between motion palpation and pain provocation tests in assessment of SIJ problems. DESIGN: This study is Descriptive Correlation. METHODS: 50 patients between the ages of 20 and 65 participated...
April 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/28509596/joint-moment-angle-properties-of-the-hip-abductors-and-hip-extensors
#12
Curtis Kindel, John Challis
PURPOSE: Strengthening of hip joint musculature is common in the rehabilitation of the lower extremity. However, strength curves for hip abduction and extension have not been assessed when varying the position of the knee. The force-length properties of the biarticular muscles can be affected when altering the position of the knee during the production of hip moments. METHODS: Maximum isometric joint moments were measured at four different angles of hip abduction and hip extension, at the two knee positions (0° and 90°)...
July 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28507967/surgery-of-a-rare-case-of-multiple-synovial-osteochondromatosis-of-the-hip-joint
#13
Yi Min Zhang, Xiaoguang Liu
INTRODUCTION: Primary synovial osteochondromatosis of the hip is a benign disorder, which is not frequently seen clinically. The characteristic of this disease is proliferation of synovium and formation of loose bodies inside the joint. It is known that only the loose bodies derived from synovium were called synovial osteochondromatosis. Although it can take place in any joint, the knee is most commonly affected, involvement of the hip joint is relatively rare. We report a young man who has multiple synovial osteochondromatosis in his left hip...
November 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28487620/kinematics-of-the-normal-knee-during-dynamic-activities-a-synthesis-of-data-from-intracortical-pins-and-biplane-imaging
#14
Xavier Gasparutto, Florent Moissenet, Yoann Lafon, Laurence Chèze, Raphaël Dumas
Few studies have provided in vivo tibiofemoral kinematics of the normal knee during dynamic weight-bearing activities. Indeed, gold standard measurement methods (i.e., intracortical pins and biplane imaging) raise ethical and experimental issues. Moreover, the conventions used for the processing of the kinematics show large inconsistencies. This study aims at synthesising the tibiofemoral kinematics measured with gold standard measurement methods. Published kinematic data were transformed in the standard recommended by the International Society of Biomechanics (ISB), and a clustering method was applied to investigate whether the couplings between the degrees of freedom (DoFs) are consistent among the different activities and measurement methods...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28473283/hip-knee-and-ankle-kinematics-during-activities-of-daily-living-a-cross-sectional-study
#15
Kashitaro Hyodo, Tadashi Masuda, Junya Aizawa, Tetsuya Jinno, Sadao Morita
BACKGROUND: Joint angle data from healthy subjects are necessary as baseline information. OBJECTIVE: To analyze the problems of patients who struggle with activities of daily living (ADL) due to restricted range of motion and to provide ADL guidance based on objective data. METHOD: An electromagnetic three-dimensional tracking system (FASTRAK) was used to quantify the hip, knee, and ankle angles of the dominant leg of 26 healthy adults as they performed 22 ADLs related to dressing, using the toilet, bathing, picking up objects, and crouching...
April 9, 2017: Brazilian Journal of Physical Therapy
https://www.readbyqxmd.com/read/28456333/how-symmetric-are-metal-on-metal-hip-resurfacing-patients-during-gait-insights-for-the-rehabilitation
#16
Renan A Resende, Renata N Kirkwood, John F Rudan, Kevin J Deluzio
Metal-on-metal hip resurfacing patients demonstrate hip biomechanics closer to normal in comparison to total hip arthroplasty during gait. However, it is not clear how symmetric is the gait of hip resurfacing patients. Biomechanical data of 12 unilateral metal-on-metal hip resurfacing participants were collected during gait at a mean time of 45months (SD 24) after surgery. Ankle, knee, hip, pelvis and trunk kinematics and kinetics of both sides were measured with a motion and force-capture system. Principal component analysis and mean hypothesis' tests were used to compare the operated and healthy sides...
April 19, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28455730/knee-abduction-affects-greater-magnitude-of-change-in-acl-and-mcl-strains-than-matched-internal-tibial-rotation-in-vitro
#17
Nathaniel A Bates, Rebecca J Nesbitt, Jason T Shearn, Gregory D Myer, Timothy E Hewett
BACKGROUND: Anterior cruciate ligament (ACL) injures incur over USD 2 billion in annual medical costs and prevention has become a topic of interest in biomechanics. However, literature conflicts persist over how knee rotations contribute to ACL strain and ligament injury. To maximize the efficacy of ACL injury prevention, the effects of underlying mechanics need to be better understood. QUESTIONS/PURPOSES: We applied robotically controlled, in vivo-derived kinematic stimuli to the knee to assess ligament biomechanics in a cadaver model...
April 28, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28445228/the-relationship-of-core-strength-and-activation-and-performance-on-three-functional-movement-screens
#18
Caleb D Johnson, Paul N Whitehead, Erin R Pletcher, Mallory S Faherty, Mita T Lovaleka, Shawn R Eagle, Karen A Keenan
Current measures of core stability utilized by clinicians and researchers suffer from several shortcomings. Three functional movement screens appear, at face-value, to be dependent on the ability to activate and control core musculature. These three screens may present a viable alternative to current measures of core stability. Thirty-nine subjects completed a deep squat, trunk stability push-up, and rotary stability screen. Scores on the three screens were summed to calculate a composite score (COMP). During the screens, muscle activity was collected to determine the length of time that the bilateral erector spinae, rectus abdominus, external oblique, and gluteus medius muscles were active...
April 18, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28437781/the-reliability-and-criterion-validity-of-2d-video-assessment-of-single-leg-squat-and-hop-landing
#19
Lee Herrington, Faisal Alenezi, Msaad Alzhrani, Hasan Alrayani, Richard Jones
The objective was to assess the intra-tester, within and between day reliability of measurement of hip adduction (HADD) and frontal plane projection angles (FPPA) during single leg squat (SLS) and single leg landing (SLL) using 2D video and the validity of these measurements against those found during 3D motion capture. 15 healthy subjects had their SLS and SLL assessed using 3D motion capture and video analysis. Inter-tester reliability for both SLS and SLL when measuring FPPA and HADD show excellent correlations (ICC2,1 0...
June 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28388232/acute-responses-of-strength-and-running-mechanics-to-increasing-and-decreasing-pain-in-patients-with-patellofemoral-pain
#20
David M Bazett-Jones, Wendy Huddleston, Stephen Cobb, Kristian O'Connor, Jennifer E Earl-Boehm
CONTEXT:   Patellofemoral pain (PFP) is typically exacerbated by repetitive activities that load the patellofemoral joint, such as running. Understanding the mediating effects of changes in pain in individuals with PFP might inform injury progression, rehabilitation, or both. OBJECTIVE:   To investigate the effects of changing pain on muscular strength and running biomechanics in those with PFP. DESIGN:   Crossover study. SETTING:   University research laboratory...
May 2017: Journal of Athletic Training
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