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https://www.readbyqxmd.com/read/29240339/traumatic-hip-dislocation-in-pediatric-patients
#1
Antti Stenroos, Topi Laaksonen, Yrjänä Nietosvaara
Traumatic hip dislocations constitute approximately 5% of all pediatric dislocations and typically result from high-energy trauma. However, pediatric hip dislocations can also occur as a result of minor energy due to flexibility of the joint structures of the immature hip. Children with a posteriorly dislocated hip present with the injured hip in flexion, adduction and internal rotation. Spontaneous relocation of hip dislocation is frequent and a thorough physical examination of the whole lower extremity is always required to reduce the chance of missing hip dislocation/subluxation...
2017: Duodecim; Lääketieteellinen Aikakauskirja
https://www.readbyqxmd.com/read/29234558/length-change-of-the-short-external-rotators-of-the-hip-in-common-stretch-positions-a-cadaveric-study
#2
Ryan P McGovern, Benjamin R Kivlan, RobRoy L Martin
Background: Stretching of the deep rotators of the hip is commonly employed in patients with lumbosacral, sacroiliac, posterior hip, and buttock pain. There is limited research demonstrating the effectiveness of common stretching techniques on the short external rotators of the hip. Purpose: The objective of this study was to evaluate length change during stretching of the superior and inferior fibers of the piriformis, superior gemellus, obturator internus, and inferior gemellus...
December 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/29179051/differences-in-pattern-of-variability-for-lower-extremity-kinematics-between-walking-and-running
#3
Amanda Estep, Steven Morrison, Shane Caswell, Jatin Ambegaonkar, Nelson Cortes
This study characterizes walking and running patterns in healthy individuals using linear and nonlinear methods Seventeen individuals (12 males, 5 females) volunteered for the study. 3D kinematic data during walking (WA) and running (RU) on a motorized treadmill were captured using reflective markers placed on lower body (200Hz). A single 25s trial (5000 data points) was collected for each gait task. WA speed was 1.39±0.12m/s, whereas RU speed was 2.56±0.27m/s. Variables of interest included ankle plantar/dorsi flexion, knee flexion/extension, knee abduction/adduction, hip flexion/extension, and hip abduction/adduction angles...
November 21, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29178297/frontal-plane-hip-joint-loading-according-to-pain-severity-in-people-with-hip-osteoarthritis
#4
Michelle Hall, Kim Allison, Tim V Wrigley, Ben R Metcalf, Yong-Hao Pua, Ans Van Ginckel, Kim L Bennell
The primary objective was to examine the hip adduction moment during walking in people with hip osteoarthritis (OA) according to pain severity. Sixty-eight participants with unilateral symptomatic hip OA were included. Pain during walking was assessed on a 5-point Likert item within the Western Ontario and McMaster Universities Index (no pain = 12; mild pain n = 37; moderate pain n = 19). Measures of the external hip adduction moment (peaks, Nm/BW × BH (%) and impulse, Nm.s/BW × BH (%)) were determined...
November 27, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29158960/a-combined-treatment-approach-emphasizing-impairment-based-manual-therapy-and-exercise-for-hip-related-compensatory-injury-in-elite-athletes-a-case-series
#5
Steve Short, Gretchen Short, Donald Strack, Philip Anloague, Brian Brewster
Background/Purpose: Athletes experiencing hip, groin, and low back pain often exhibit similar clinical characteristics. Individuals with hip, groin and low back pain may have the presence of multiple concurrent pathoanatomical diagnoses. Regardless, similar regional characteristics and dysfunction may contribute to the patient's chief complaint, potentially creating a sub-group of individuals that may be defined by lumbopelvic and hip mobility limitations, motor control impairments, and other shared clinical findings...
November 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/29154234/activity-and-quality-of-life-after-total-hip-arthroplasty
#6
Anna Świtoń, Ewa Wodka-Natkaniec, Łukasz Niedźwiedzki, Tadeusz Gaździk, Tadeusz Niedźwiedzki
BACKGROUND: Coxarthrosis is a chronic musculoskeletal condition that causes severe pain and considerable limi-tation of the patient's motor performance. Total hip arthroplasty is one of the most common and effective methods used in the treatment of advanced degenerative changes. The aim of the present study was to evaluate the activity and quality of life of patients after unilateral total hip arthroplasty. MATERIAL AND METHODS: The study was conducted in a group of 189 patients who had undergone unilateral total hip arthroplasty...
October 31, 2017: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/29149623/the-effect-of-surgical-approach-on-gait-mechanics-after-total-hip-arthroplasty
#7
Joseph Zeni, Kathleen Madara, Hunter Witmer, Riley Gerhardt, James Rubano
BACKGROUND: Few studies have compared the biomechanical outcomes of different surgical approaches for hip arthroplasty. The purpose of this study was to compare hip, pelvic, and trunk kinematics and kinetics between individuals who underwent a posterior or anterolateral approach. METHODS: Forty-five individuals between 40 and 80 years old underwent motion analysis during overground gait prior to hip arthroplasty and 3 months after surgery. Walking speed, hip flexion angle, hip extension angle, adduction angle and moment, trunk angle, trunk lean, and pelvis drop were compared between approaches...
November 10, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29144568/kinematic-analysis-of-pressing-situations-in-female-collegiate-football-games-new-insight-into-acl-injury-causation
#8
Shogo Sasaki, Hideyuki Koga, Tron Krosshaug, Satoshi Kaneko, Toru Fukubayashi
The most common events during which anterior cruciate ligament (ACL) injuries occur in football are pressing situations. This study aimed to describe the knee and hip joint kinematics during pressing situations in football games in order to identify kinematic patterns in actions with a high risk for ACL injuries. We filmed 5 female collegiate football matches and identified 66 pressing situations. Five situations with a large distance between the trunk and foot placements in the sagittal plane were analysed using a model-based image-matching technique...
November 16, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29140159/athletes-rated-as-poor-single-leg-squat-performers-display-measureable-differences-in-single-leg-squat-biomechanics-compared-to-good-performers
#9
Lachlan E Garrick, Bryce C Alexander, Anthony G Schache, Marcus G Pandy, Kay M Crossley, Natalie J Collins
CONTEXT: It is important to validate single-leg squat visual rating criteria used in clinical practice and research. Foot orthoses may improve single-leg squat performance in those who demonstrate biomechanics associated with increased risk of lower-limb injury. OBJECTIVE: Validate visual rating criteria proposed by Crossley et al, by determining whether athletes rated as poor single-leg squat performers display different single-leg squat biomechanics than good performers; and evaluate immediate effects of foot orthoses on single-leg squat biomechanics in poor performers...
November 15, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/29128688/classification-and-analysis-of-the-natural-corner-curving-motion-of-humans-based-on-gait-motion
#10
Yasuhiro Akiyama, Hitoshi Toda, Takao Ogura, Shogo Okamoto, Yoji Yamada
The curving motion of the human body is more complex than gait motion for straight walking. In particular, when human can freely curve corners, the gait motion varies among and even within individuals. However, is it not possible to classify natural curving motion using a statistical method? This study investigates the natural curving motion, encompassing various walking paths selected by subjects, as opposed to previous studies that focused on specific stepping strategies or curving motion under precisely controlled conditions...
October 9, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29105312/acute-effect-of-a-resistance-exercise-session-on-markers-of-cartilage-breakdown-and-inflammation-in-women-with-rheumatoid-arthritis
#11
Ana Carolina Pereira Nunes Pinto, Jamil Natour, Charlles Heldan de Moura Castro, Marina Eloi, Império Lombardi Junior
AIM: To assess the acute effect of resistance exercise (RE) on circulating biomarkers of cartilage breakdown and inflammation in women with rheumatoid arthritis (RA). METHODS: Thirty-four volunteers (17 with and 17 without RA), participated in a 25 min RE session (knee extension, knee flexion, hip abduction and hip adduction) with one set of 12 repetitions at 50% of one repetition maximum (1RM) and one set of eight repetitions at 75% of 1RM. Blood samples were collected 30 and 5 min before, immediately after and 1, 2 and 24 h after the session...
November 3, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29096985/dual-task-and-anticipation-impact-lower-limb-biomechanics-during-a-single-leg-cut-with-body-borne-load
#12
Kayla D Seymore, Sarah E Cameron, Jonathan T Kaplan, John W Ramsay, Tyler N Brown
This study quantified how a dual cognitive task impacts lower limb biomechanics during anticipated and unanticipated single-leg cuts with body borne load. Twenty-four males performed anticipated and unanticipated cuts with and without a dual cognitive task with three load conditions: no load (∼6 kg), medium load (15% of BW), and heavy load (30% of BW). Lower limb biomechanics were submitted to a repeated measures linear mixed model to test the main and interaction effects of load, anticipation, and dual task...
December 8, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29074345/effects-of-a-hip-brace-on-biomechanics-and-pain-in-people-with-femoroacetabular-impingement
#13
Nicolas R A Newcomb, Tim V Wrigley, Rana S Hinman, Jessica Kasza, Libby Spiers, John O'Donnell, Kim L Bennell
OBJECTIVES: This study evaluates whether hip bracing in patients with femoroacetabular impingement (FAI) (a) immediately reduces range of hip internal rotation, flexion, adduction, and pain during functional tasks; and (b) improves patient-reported outcomes when worn daily over 4 weeks. DESIGN: Within-participant design followed by a case series. METHODS: Twenty-five adults with symptomatic FAI underwent 3D kinematic assessment with and without a hip brace during single-leg squat, double-leg squat, stair ascent, and stair descent...
October 3, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29071305/absolute-reliability-and-concurrent-validity-of-hand-held-dynamometry-and-isokinetic-dynamometry-in-the-hip-knee-and-ankle-joint-systematic-review-and-meta-analysis
#14
Claudio Chamorro, Susan Armijo-Olivo, Carlos De la Fuente, Javiera Fuentes, Luis Javier Chirosa
The purpose of the study is to establish absolute reliability and concurrent validity between hand-held dynamometers (HHDs) and isokinetic dynamometers (IDs) in lower extremity peak torque assessment. Medline, Embase, CINAHL databases were searched for studies related to psychometric properties in muscle dynamometry. Studies considering standard error of measurement SEM (%) or limit of agreement LOA (%) expressed as percentage of the mean, were considered to establish absolute reliability while studies using intra-class correlation coefficient (ICC) were considered to establish concurrent validity between dynamometers...
2017: Open Medicine (Warsaw, Poland)
https://www.readbyqxmd.com/read/29070966/psychometric-properties-of-a-clinical-strength-assessment-protocol-in-people-with-multiple-sclerosis
#15
Mark M Mañago, Jeffrey R Hebert, Margaret Schenkman
BACKGROUND: Strength training in people with multiple sclerosis (MS) is an important component of rehabilitation, but it can be challenging for clinicians to quantify strength accurately and reliably. This study investigated the psychometric properties of a clinical strength assessment protocol using handheld dynamometry and other objective, quantifiable tests for the lower extremities and trunk in people with MS. METHODS: This study determined discriminant validity between 25 participants with MS and 25 controls and between participants with MS who had higher versus lower disability; test-retest reliability across 7 to 10 days; and response stability...
September 2017: International Journal of MS Care
https://www.readbyqxmd.com/read/29067818/kinetics-of-the-lower-limb-during-two-typical-tai-chi-movements-in-the-elderly
#16
Jing Xian Li, Nok-Yeung Law
Tai Chi (TC) is a recommended exercise for elderly people; however, its loading on the joints of the lower limbs is unknown. This study examined the 3D kinetics of the lower limbs during two typical TC movements and walking in the elderly. Fifteen experienced TC practitioners participated. Ground reaction forces, joint moments and time-to-peak joint moment generation were analysed. Compared with walking, both TC movements generated significantly (1) smaller peak ground reaction forces in all directions, except the anterior; (2) larger hip extension, adduction and internal rotational moments, knee adduction/abduction and internal rotation moments and eversion/inversion and external/internal moments of ankle-foot; and (3) longer peak moment generation time for hip extension, adduction and internal rotation, knee extension and ankle dorsiflexion and inversion...
October 25, 2017: Research in Sports Medicine
https://www.readbyqxmd.com/read/29065078/biomechanical-differences-of-multidirectional-jump-landings-among-female-basketball-and-soccer-players
#17
Jeffrey B Taylor, Kevin R Ford, Randy J Schmitz, Scott E Ross, Terry A Ackerman, Sandra J Shultz
Taylor, JB, Ford, KR, Schmitz, RJ, Ross, SE, Ackerman, TA, and Shultz, SJ. Biomechanical differences of multidirectional jump landings among female basketball and soccer players. J Strength Cond Res 31(11): 3034-3045, 2017-Anterior cruciate ligament (ACL) injury prevention programs are less successful in basketball than soccer and may be due to distinct movement strategies that these athletes develop from sport-specific training. The purpose of this study was to identify biomechanical differences between female basketball and soccer players during multidirectional jump landings...
November 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29060894/the-external-force-associated-with-callus-formation-under-the-first-metatarsal-head-is-reduced-by-wearing-rocker-sole-shoes
#18
Ayumi Amemiya, Rena Okonogi, Hiroki Yamakawa, Kaori Susumu, Tatsuya Jitsuishi, Hisayoshi Sugawara, Yuji L Tanaka, Masatoshi Komiyama, Taketoshi Mori
INTRODUCTION: Callus is one of the main causes of diabetic foot ulcers. Therefore, preventing callus formation is very important. In a previous study, it was clarified that callus formation under the first metatarsal head (MTH) is associated with high shear stress time integral/pressure time integral (SPR-i). another study, it was clarified that rocker sole shoes are effective in reducing peak pressure under the first MTH. Therefore, we hypothesized that rocker sole shoes reduce SPR-i under the first MTH...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29048697/comparison-of-arthroscopic-versus-open-surgery-on-external-snapping-hip-caused-by-gluteal-muscle-contracture
#19
Zhu Dai, Zhiwei Chen, Ying Liao, Zhengwu Tang, Juncheng Cui
PURPOSE: To compare the outcomes of contracture release by arthroscopic versus open surgical approach in patients with external snapping hip (ESH) caused by gluteal muscle contracture (GMC). METHODS: Medical records of patients with ESH due to GMC who underwent open surgery (n = 44) or arthroscopic surgery (n = 48) between October 2008 and October 2014 were reviewed. Patients were followed up at 1, 3, 12, and 24 months postoperatively. Operation time, incision length, postoperative pain, postoperative complication rate, and recurrence rate were compared between the 2 groups...
October 16, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28985577/characteristics-of-clinical-measurements-between-biomechanical-responders-and-non-responders-to-a-shoe-designed-for-knee-osteoarthritis
#20
Yongwook Kim, Jim Richards, Roy H Lidtke, Renato Trede
PURPOSE: The purpose of this study was to investigate the characteristics of biomechanical and clinical measurements in relation to the knee adduction moment when wearing a standard shoe and a shoe design for individuals with knee osteoarthritis (Flex-OA). METHODS: Kinematic and kinetic data were collected from thirty-two healthy individuals (64 knees) using a ten camera motion analysis system and four force plates. Subjects performed 5 walking trials under the two conditions and the magnitude of individuals' biomechanical responses where explored in relation to the clinical assessment of the Foot Posture Index, hip rotation range, strength of hip rotators, and active ankle-foot motion, all of which have been described as possible compensation mechanisms in knee osteoarthritis...
September 29, 2017: Gait & Posture
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