keyword
https://read.qxmd.com/read/38460507/differences-in-lower-extremity-joint-coordination-during-two-landing-phases-of-a-drop-jump-task
#21
JOURNAL ARTICLE
JiaWei Wang, Ye Liu
The aim of the present study was to compare the differences in joint coordination patterns and variability in the lower extremity between the first and second landing phases of the drop jump. Eighteen resistance-trained men (age: 22.8 ± 1.8 years) performed drop jumps from a height of 0.40 m. An eight-camera motion capture system was utilized to record kinematic trajectories. Modified vector coding technique and circular statistics were used to determine the coordination pattern and variability of the following joint couples during the first and second landings: hip frontal-knee frontal (HfKf), hip sagittal-knee frontal (HsKf), hip sagittal-knee sagittal (HsKs), knee frontal-ankle frontal (KfAf), knee sagittal-ankle frontal (KsAf), and knee sagittal-ankle sagittal (KsAs)...
March 8, 2024: Motor Control
https://read.qxmd.com/read/38460464/lower-limbs-biomechanical-deficits-associated-with-stage-1-and-2-posterior-tibialis-tendon-dysfunction-during-walking
#22
JOURNAL ARTICLE
Ahmed Dami, Dominic Chicoine, Eléna Payen, Marc Bouchard, Etienne L Belzile, Phillipe Corbeil, Gabriel Moisan
BACKGROUND: Posterior tibialis tendon dysfunction (PTTD) is a chronic degenerative musculoskeletal disorder causing a progressive ankle complex and arch collapse altering lower limb biomechanics. However, biomechanical changes associated with stage 1 and 2 PTTD need to be better characterized during walking to guide clinical recommendations and improve non-operative treatments. RESEARCH QUESTION: What are the lower limb kinematic and kinetic differences between individuals with stage 1 (PTTD1), individuals with stage 2 PTTD (PTTD2) and healthy counterparts during gait? METHODS: Sixteen PTTD1, 11 PTTD2 and 20 healthy controls were included in this multicentric case-control study to compare their lower limb gait biomechanics...
March 7, 2024: Gait & Posture
https://read.qxmd.com/read/38459686/individuals-with-chronic-ankle-instability-show-abnormalities-in-maximal-and-submaximal-isometric-strength-of-the-knee-extensor-and-flexor-muscles
#23
JOURNAL ARTICLE
Luciana Labanca, Roberto Tedeschi, Massimiliano Mosca, Mari Graziaa Benedetti
BACKGROUND: It has been shown that chronic ankle instability (CAI) leads to abnormalities in neuromuscular control of more proximal joints than the ankle. Although strength of the hip and the ankle muscles has been largely investigated providing concordant results, limited evidence with contrasting results has been reported regarding knee extensor and flexor muscles. PURPOSE: To investigate maximal and submaximal isometric muscle strength in individuals with CAI...
March 8, 2024: American Journal of Sports Medicine
https://read.qxmd.com/read/38458003/influence-of-musculoskeletal-pain-during-gait-on-kinematics-and-selective-motor-control-in-individuals-with-spastic-cerebral-palsy-a-pilot-study
#24
JOURNAL ARTICLE
Gilad Sorek, Marije Goudriaan, Itai Schurr, Simon-Henri Schless
BACKGROUND: Individuals with cerebral-palsy commonly present with altered kinematics and selective-motor-control during gait, and may also experience musculoskeletal pain. This pilot study aims to investigate if the immediate experience of musculoskeletal pain during gait influences kinematics and selective-motor-control in individuals with spastic cerebral-palsy. METHODS: Retrospective treadmill-based gait-analysis data for 145 individuals with spastic cerebral-palsy were screened...
March 5, 2024: Clinical Biomechanics
https://read.qxmd.com/read/38456685/effects-of-shoe-collar-height-and-limb-dominance-on-landing-knee-biomechanics-in-female-collegiate-volleyball-players
#25
JOURNAL ARTICLE
Lindsey Legg, Tyler Donahue, Shelby Peel, Scott Piland, Tanner Thorsen
Volleyball-specific footwear with higher collar heights (a mid-cut shoe) are worn to restrict ankle motion. Reduced ankle dorsiflexion has been associated with increased frontal plane motion and injury risk at the knee. With the high frequency of unilateral landings in volleyball, the purpose of this study was to determine the effect of volleyball-specific shoes and limb dominance on knee landing mechanics in collegiate volleyball players. It was hypothesized that participants would exhibit smaller sagittal plane and greater frontal plane knee joint mechanics in mid-cut and dominant limb and that vertical and posterior directed ground reaction forces would be greater wearing mid-cut, yet similar between limbs...
March 8, 2024: Journal of Sports Sciences
https://read.qxmd.com/read/38456270/knee-joint-line-obliquity-with-adaptational-hip-and-ankle-joint-orientation-after-medial-open-wedge-high-tibial-osteotomy
#26
JOURNAL ARTICLE
June-Bum Jun, Sung-Sahn Lee, Juyong Oh, Dae-Hee Lee
BACKGROUND: Time-dependent postoperative changes in knee joint line obliquity (KJLO) and subsequent adaptational changes in the hip and ankle joints have not been fully proven after medial open wedge high tibial osteotomy (MOWHTO). PURPOSE: To investigate the serial postoperative changes in KJLO and subsequent adaptational changes in the hip and ankle joints over time after MOWHTO. STUDY DESIGN: Case series, Level of evidence, 4. METHODS: A total of 92 patients who underwent MOWHTO between April 2015 and December 2020 were evaluated...
March 8, 2024: American Journal of Sports Medicine
https://read.qxmd.com/read/38456145/design-and-motion-control-of-exoskeleton-robot-for-paralyzed-lower-limb-rehabilitation
#27
JOURNAL ARTICLE
Zhiyong Zhu, Lingyan Liu, Wenbin Zhang, Cong Jiang, Xingsong Wang, Jie Li
INTRODUCTION: Patients suffering from limb movement disorders require more complete rehabilitation treatment, and there is a huge demand for rehabilitation exoskeleton robots. Flexible and reliable motion control of exoskeleton robots is very important for patient rehabilitation. METHODS: This paper proposes a novel exoskeleton robotic system for lower limb rehabilitation. The designed lower limb rehabilitation exoskeleton robot mechanism is mainly composed of the hip joint mechanism, the knee joint mechanism and the ankle joint mechanism...
2024: Frontiers in Neuroscience
https://read.qxmd.com/read/38455454/the-coronal-alignment-differs-between-two-dimensional-weight-bearing-and-three-dimensional-nonweight-bearing-planning-in-total-knee-arthroplasty
#28
JOURNAL ARTICLE
Patrick Pflüger, Sandro Hodel, Stefan M Zimmermann, Svenja Knechtle, Lazaros Vlachopoulos, Sandro F Fucentese
PURPOSE: The goal of this study is (1) to assess differences between two-dimensional (2D) weight-bearing (WB) and three-dimensional (3D) nonweight-bearing (NWB) planning in total knee arthroplasty (TKA) and (2) to identify factors that influence intermodal differences. METHODS: Retrospective single-centre analysis of patients planned for a TKA with patient-specific instruments (PSI). Preoperative WB long-leg radiographs and NWB computed tomography were analysed and following radiographic parameters included: hip-knee-ankle angle (HKA) (+varus/-valgus), joint line convergence angle (JLCA), femorotibial subluxation and bony defect classified according to Anderson...
January 2024: Journal of Experimental Orthopaedics
https://read.qxmd.com/read/38455438/influence-of-torsional-stiffness-in-badminton-footwear-on-lower-limb-biomechanics
#29
JOURNAL ARTICLE
Siqin Shen, Jin Teng, Gusztáv Fekete, Qichang Mei, Jia Zhao, Fan Yang, Yaodong Gu
Torsional stiffness of athletic footwear plays a crucial role in preventing injury and improving sports performance. Yet, there is a lack of research focused on the biomechanical effect of torsional stiffness in badminton shoes. This study aimed to comprehensively investigate the influence of three different levels of torsional stiffness in badminton shoes on biomechanical characteristics, sports performance, and injury risk in badminton players. Fifteen male players, aged 22.8 ± 1.96 years, participated in the study, performing badminton-specific tasks, including forehand clear stroke [left foot (FCL) and right foot (FCR)], 45-degree sidestep cutting (45C), and consecutive vertical jumps (CVJ)...
March 2024: Journal of Sports Science & Medicine
https://read.qxmd.com/read/38454770/a-case-report-of-diffuse-type-tenosynovial-giant-cell-tumor-as-a-calcaneus-mass-a-diagnostic-challenge
#30
Zheng Wang, Xiang Wang, Shutong Zhang
INTRODUCTION: Diffuse-type tenosynovial giant cell tumor (D-TGCT) originates from synovial cells in tendon sheaths and bursae and rarely presents as a calcaneal mass. CASE REPORT: A 44-year-old female presented with left heel pain that had persisted for over a year and had worsened over the past six months. A mass was found on the Lateral radiograph of the calcaneus, which was diagnosed as an aneurysmal bone cyst. Non-contrast computed tomography (CT) and magnetic resonance imaging (MRI)diagnosed a benign tumor...
March 7, 2024: Current medical imaging
https://read.qxmd.com/read/38454368/the-posterior-tibial-slope-affects-the-measurement-reliability-regarding-the-radiographic-parameter-of-the-knee
#31
JOURNAL ARTICLE
Seung-Hun Lee, Je-Hyun Yoo, Dae-Kyung Kwak, Sung-Hwan Kim, Sung-Kuk Chae, Hyun-Soo Moon
BACKGROUND: Posterior tibial slope (PTS) exhibits considerable variability among individuals and is anticipated to influence the accuracy of radiographic measurements related to the knee. Despite this potential impact, there is a lack of prior research investigating how PTS affects the accuracy of these measurements. Therefore, this study aimed to investigate the effect of PTS on the measurement reliability regarding the radiographic parameter of the knee. METHODS: The medical records of patients who took full-length anteroposterior radiographs of the lower limb between January 2020 and June 2022 were evaluated retrospectively...
March 7, 2024: BMC Musculoskeletal Disorders
https://read.qxmd.com/read/38454143/factors-predicting-lower-limb-alignment-after-oxford-medial-unicompartmental-knee-arthroplasty
#32
JOURNAL ARTICLE
Han-Ting Shih, Kun-Hui Chen, Cheng-Hung Lee, Kao-Chang Tu, Shun-Ping Wang
This study aimed to identify the factors affecting hip-knee-ankle (HKA) angle following Oxford medial unicompartmental knee arthroplasty (MUKA). A retrospective analysis of 200 patients who underwent Oxford MUKA from June 2018 to October 2020 was conducted. Univariate and multivariate analyses were performed to investigate the impact of surgical and radiographic characteristics on the postoperative HKA angle. The mean HKA angle was 9.5 ± 4.3° before surgery and 3.6 ± 3...
March 7, 2024: Scientific Reports
https://read.qxmd.com/read/38453588/prevalence-and-risk-factors-of-ankle-osteoarthritis-in-a-population-based-study
#33
JOURNAL ARTICLE
Akinobu Nishimura, Yoshiyuki Senga, Yuki Fujikawa, Norihiko Takegami, Koji Akeda, Toru Ogura, Akihiro Sudo
BACKGROUND: This study aimed to investigate the prevalence of radiographic ankle osteoarthritis (AOA) in Japan and identify its risk factors. METHODS: The analysis included data from the population-based cohort study, radiographs of the knees and ankles, ultrasonography of the ankle to examine chronic ankle instability (CAI), and questionnaires on ankle pain, job history, height, and body weight. A total of 597 individuals aged > 50 years were included in the study...
February 24, 2024: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://read.qxmd.com/read/38452199/blood-flow-restriction-and-veterans-with-multiple-sclerosis-brave-ms-and-advanced-disability-protocol-for-a-randomized-controlled-trial
#34
JOURNAL ARTICLE
Mark M Mañago, Robert Will, Talia Strahler, Lauren Van Valkenburgh, Michael O Harris-Love, Jeri E Forster, Michelle Cameron, Cory L Christiansen
OBJECTIVE: The purpose of this study will be to determine the efficacy of low intensity lower extremity resistance training with and without blood flow restriction on quadriceps muscle strength and thickness in veterans with advanced multiple sclerosis (MS). METHODS: This will be an assessor-blinded, 2-group (1 to 1 allocation) randomized controlled trial targeting an enrollment of 58 participants with advanced MS as defined by Patient-Determined Disease Steps scale levels 4 to 7...
March 7, 2024: Physical Therapy
https://read.qxmd.com/read/38451303/optimizing-periprosthetic-fracture-management-and-in-hospital-outcome-insights-from-the-pippas-multicentric-study-of-1387-cases-in-spain
#35
MULTICENTER STUDY
(no author information available yet)
BACKGROUND: The incidence of all periprosthetic fractures (PPF), which require complex surgical treatment associated with high morbidity and mortality, is predicted to increase. The evolving surgical management has created a knowledge gap regarding its impact on immediate outcomes. This study aimed to describe current management strategies for PPF and their repercussions for in-hospital outcomes as well as to evaluate their implications for the community. METHODS: PIPPAS (Peri-Implant PeriProsthetic Survival Analysis) was a prospective multicentre observational study of 1387 PPF performed during 2021...
March 7, 2024: Journal of Orthopaedics and Traumatology: Official Journal of the Italian Society of Orthopaedics and Traumatology
https://read.qxmd.com/read/38450657/hemiepiphysiodesis-for-genu-valgum-in-patients-with-multiple-hereditary-exostoses
#36
JOURNAL ARTICLE
Joshua T Bram, Don T Li, Olivia C Tracey, Emilie Lijesen, Danielle E Chipman, Roger F Widmann, Emily R Dodwell, John S Blanco, Daniel W Green
BACKGROUND: Genu valgum is a well-known feature of multiple hereditary exostoses (MHE). Though prior reports have demonstrated successful treatment with hemiepiphysiodesis, details regarding the correction rate and comparison to an idiopathic population are lacking. This study aimed to detail our institution's experience with guided growth of the knee in patients with MHE and compare this to an idiopathic population. METHODS: All pediatric patients (age 18 and younger) with MHE who underwent lower extremity hemiepiphysiodesis at a tertiary care medical center between January 2016 and December 2022 were retrospectively reviewed...
March 7, 2024: Journal of Pediatric Orthopedics
https://read.qxmd.com/read/38449320/the-impact-of-a-mid-season-fifa-world-cup%C3%A2-on-injury-occurrence-and-patterns-in-french-professional-soccer-clubs
#37
JOURNAL ARTICLE
Emmanuel Orhant, J F Chapellier, Christopher Carling
This study retrospectively compared the effect of holding the 2022 FIFA World Cup™ (WC) mid-season (season 2022/23) on injury rates and patterns in French Ligue 1 soccer clubs. Epidemiological data in 17 clubs were prospectively recorded by their physicians. Time-loss injuries (injuries leading to a player being unable to fully participate in play over the following 72-hour period) were compared with those reported during a regular season (2021-22). In the WC season, an increase of approximately 23% (training + match-play) was observed for both the total number of injuries and knee, ankle and muscle injuries combined...
March 6, 2024: Research in Sports Medicine
https://read.qxmd.com/read/38446400/the-relationship-between-running-biomechanics-and-running-economy-a-systematic-review-and-meta-analysis-of-observational-studies
#38
Bas Van Hooren, Ivan Jukic, Maartje Cox, Koen G Frenken, Iker Bautista, Isabel S Moore
BACKGROUND: Running biomechanics is considered an important determinant of running economy (RE). However, studies examining associations between running biomechanics and RE report inconsistent findings. OBJECTIVE: The aim of this systematic review was to determine associations between running biomechanics and RE and explore potential causes of inconsistency. METHODS: Three databases were searched and monitored up to April 2023. Observational studies were included if they (i) examined associations between running biomechanics and RE, or (ii) compared running biomechanics between groups differing in RE, or (iii) compared RE between groups differing in running biomechanics during level, constant-speed, and submaximal running in healthy humans (18-65 years)...
March 6, 2024: Sports Medicine
https://read.qxmd.com/read/38445844/effect-of-unpredictable-timing-on-the-hip-knee-and-ankle-kinematics-and-center-of-mass-during-deceleration-tasks
#39
JOURNAL ARTICLE
Akino Aoki, Tomoyo Tamura, Kenji Hoshi, Kazuyoshi Gamada
BACKGROUND: Unpredictable stopping or deceleration tasks are crucial to prevent ACL injury. The purpose of this study was to reveal differences and relationships in kinematics during different deceleration tasks with and without anticipation. METHODS: Twenty-four collegiate athletes were recruited. Three commercial video cameras were used to capture frontal and sagittal lower-extremity kinematics. Participants were instructed to perform three deceleration tasks: 1) anticipated stopping and running backward at a point indicated previously (SRB-P); 2) anticipated stopping and running backward in front of a badminton net (SRB-N); and 3) unanticipated stopping and running backward upon random flashing of a light (SRB-U)...
March 6, 2024: Journal of Sports Medicine and Physical Fitness
https://read.qxmd.com/read/38445318/knee-dislocations-with-vascular-injuries-a-review-article
#40
JOURNAL ARTICLE
Gilbert Moatshe, Lars Engebretsen
Knee dislocations are complex and devastating injuries that are potentially limb threatening. A high level of suspicion is required to diagnose and treat these injuries properly and timely because some of the knee dislocations spontaneously reduce, and the seriousness of the injury might not be appreciated early. Early diagnosis of concomitant vascular injuries is imperative to avoid limb loss because the risk of amputation is high when diagnosis and timely intervention are delayed. It is recommended that serial ankle-brachial index (ABI) be performed in all patients with suspected knee dislocation...
February 26, 2024: Danish Medical Journal
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