keyword
https://read.qxmd.com/read/38426592/feasibility-study-of-experimental-protocol-for-the-time-dependent-mechanical-response-of-synthetic-tibia
#1
JOURNAL ARTICLE
Ramiro Mantecon, Alvaro Ruiz, Benjamin M Wheatley, José Díaz-Álvarez, M H Miguélez, George Youssef
In this research, an experimental biomechanics construct was developed to reveal the mechanics of distal tibial fracture by submitting synthetic tibiae to cyclic loading, resulting in a combined stress state due to axial compression and bending loads. The synthetic tibia was fixed at the knee but allowed to rotate in the coronal and sagittal planes at the ankle. The first three loading regimes lasted for 4,000 cycles/each, and the final until ultimate failure. After 12k ± 80 cycles, the observed failure patterns closely resembled distal tibial fractures...
March 1, 2024: Journal of Biomechanical Engineering
https://read.qxmd.com/read/38292249/neuroimaging-wearable-sensors-and-blood-based-biomarkers-reveal-hyperacute-changes-in-the-brain-after-sub-concussive-impacts
#2
JOURNAL ARTICLE
Carissa Grijalva, Veronica A Mullins, Bryce R Michael, Dallin Hale, Lyndia Wu, Nima Toosizadeh, Floyd H Chilton, Kaveh Laksari
Impacts in mixed martial arts (MMA) have been studied mainly in regard to the long-term effects of concussions. However, repetitive sub-concussive head impacts at the hyperacute phase (minutes after impact), are not understood. The head experiences rapid acceleration similar to a concussion, but without clinical symptoms. We utilize portable neuroimaging technology - transcranial Doppler (TCD) ultrasound and functional near infrared spectroscopy (fNIRS) - to estimate the extent of pre- and post-differences following contact and non-contact sparring sessions in nine MMA athletes...
December 2023: Brain multiphysics
https://read.qxmd.com/read/38276271/internal-rotation-measurement-of-the-knee-with-polymer-based-capacitive-strain-gauges-versus-mechanical-rotation-measurement-taking-gender-differences-into-account-a-comparative-analysis
#3
JOURNAL ARTICLE
Hermann O Mayr, Nikolaus Rosenstiel, Karthika S Prakash, Laura Maria Comella, Peter Woias, Hagen Schmal, Michael Seidenstuecker
With the conventional mechanical rotation measurement of joints, only static measurements are possible with the patient at rest. In the future, it would be interesting to carry out dynamic rotation measurements, for example, when walking or participating in sports. Therefore, a measurement method with an elastic polymer-based capacitive measuring system was developed and validated. In our system, the measurement setup was comprised of a capacitive strain gauge made from a polymer, which was connected to a flexible printed circuit board...
January 19, 2024: Life
https://read.qxmd.com/read/37954019/a-longer-achilles-tendon-moment-arm-length-is-not-associated-with-superior-hopping-performance
#4
JOURNAL ARTICLE
Bálint Kovács, Sun Dong, Yang Song, Ye Jingyi, Sándor Béres, József Tihanyi, Jingfeng Zhang, Leonidas Petridis, Yaodong Gu
Variability in musculoskeletal and lower leg structure has the potential to influence hopping height. Achilles tendon moment arm length and plantarflexor muscle strength can influence ankle joint torque development and, consequently, hopping performance. While most studies have examined the connection of the Achilles tendon moment arm with hopping performance including the resting length, in this study we attempted to explore how the changes in Achilles tendon moment arm are related to hopping performance. Therefore, the purpose of this study was to test for correlations between foot and lower leg muscle structure parameters (i...
2023: Frontiers in Bioengineering and Biotechnology
https://read.qxmd.com/read/37738919/impact-of-lower-muscle-stiffness-on-ankle-dorsiflexion-restriction-in-children-with-cerebral-palsy-evaluated-using-ultrasound-elastography
#5
JOURNAL ARTICLE
Shinya Nakamura, Minoru Kimoto, Kyoji Okada, Uki Kawanobe, Hitoshi Sakamoto
BACKGROUND: Plantar flexor muscles always contribute to limiting the range of motion of ankle dorsiflexion in children with spastic cerebral palsy, but the individual contributions of these muscles are not well defined. This study aimed to identify which muscles' stiffness impacts the dorsiflexion range of motion in children with cerebral palsy. METHODS: Twenty-five children with cerebral palsy were included. The maximum passive dorsiflexion range of motion was measured in two positions: hip and knee joints in flexion, and both joints in full extension...
September 15, 2023: Clinical Biomechanics
https://read.qxmd.com/read/37633780/validity-and-reliability-of-hindi-version-of-foot-and-ankle-disability-index-in-patients-with-chronic-recurrent-lateral-ankle-sprain
#6
JOURNAL ARTICLE
Aditi Popli, Kanu Goyal, Subhasish Chatterjee, Manu Goyal
BACKGROUND: Lateral Ankle Sprain (LAS) is a recurrent musculoskeletal injury commonly noticed in primary care, podiatry, orthopaedics, and physical therapy centers. The Foot and Ankle Disability Index (FADI) is a self-reported and region-specific tool with no previous literature available on the translation of the FADI scale into Hindi language. AIM: The study aims to translate and evaluate each translated domain of FADI to see its cross-cultural adaptation, content validity and reliability for patients with chronic recurrent LAS...
August 15, 2023: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://read.qxmd.com/read/37348206/in-vivo-evaluation-of-ankle-kinematics-and-tibiotalar-joint-contact-strains-using-digital-volume-correlation-and-3%C3%A2-t-clinical-mri
#7
JOURNAL ARTICLE
Saman Tavana, Jeffrey N Clark, Choon Chiet Hong, Nicolas Newell, James D Calder, Ulrich Hansen
BACKGROUND: In vivo evaluation of ankle joint biomechanics is key to investigating the effect of injuries on the mechanics of the joint and evaluating the effectiveness of treatments. The objectives of this study were to 1) investigate the kinematics and contact strains of the ankle joint and 2) to investigate the correlation between the tibiotalar joint contact strains and the prevalence of osteochondral lesions of the talus distribution. METHODS: Eight healthy human ankle joints were subjected to compressive load and 3 T MRIs were obtained before and after applying load...
June 16, 2023: Clinical Biomechanics
https://read.qxmd.com/read/37275779/effect-of-the-covid-19-pandemic-on-lower-extremity-injuries-in-japanese-collegiate-men-s-basketball-players
#8
JOURNAL ARTICLE
Yuta Sekine, Kotaro Kamada, Takeshi Koyama, Seigo Hoshikawa, Eri Ito, Sayuri Uchino, Takayuki Komatsu
BACKGROUND: The coronavirus disease 2019 (COVID-19) pandemic significantly affected the lives of Japanese collegiate men's basketball players. PURPOSE: To describe the incidence of lower extremity injuries in Japanese collegiate men's basketball during the COVID-19 pandemic and examine the effects of the pandemic on injury patterns. STUDY DESIGN: Descriptive epidemiological study. METHODS: Using data from a surveillance project of the Department of Medicine and Science of the Kanto Collegiate Basketball Federation, the authors included data from 6 men's basketball teams during the 2020-21 and 2021-22 seasons (11 team seasons)...
May 2023: Orthopaedic Journal of Sports Medicine
https://read.qxmd.com/read/36736207/influence-of-neoprene-ankle-orthoses-on-dynamic-balance-during-a-vertical-jump-in-healthy-individuals-and-with-sprain-history-a-cross-sectional-study
#9
JOURNAL ARTICLE
Márcia Cristina Gomes Costa, Ketlyn Germann Hendler, Heloyse U Kuriki, Rafael I Barbosa, Lais Mara S das Neves, Elaine C de Oliveira Guirro, Rinaldo R de Jesus Guirro, Alexandre Marcio Marcolino
INTRODUCTION: A sprain describes an excessive amount of force or strain on a ligament, which may or may not lead to its rupture. Orthoses are among the most common modalities prescribed as a conservative treatment for ankle instability and sprain. OBJECTIVE: We aimed to analyse the effect of neoprene orthosis on the balance and functionality of healthy individuals and volunteers with lateral ankle sprains METHODS: We evaluated 12 healthy volunteers (control group) and 12 volunteers diagnosed with a sprain and/or instability (patient group)...
March 2023: Gait & Posture
https://read.qxmd.com/read/36671606/effect-of-different-protection-on-lateral-ankle-during-landing-an-instantaneous-impact-analysis
#10
JOURNAL ARTICLE
Junchao Guo, Jiemeng Yang, Yawei Wang, Zhongjun Mo, Jingyu Pu, Yubo Fan
Ankle sprain is the most common injury during parachute landing. The biomechanical behavior of the tissues can help us understand the injury mechanism of ankle inversion. To accurately describe the injury mechanism of tissues and assess the effect of ankle protection, a stable time of landing was obtained through the dynamic stability test. It was used for the boundary condition of the foot finite element (FE). The FE model was provided a static load equal to half of the bodyweight applied at the distal tibia and fibula; a foot-boot-brace FE model was established to simulate the landing of subjects on an inversion inclined platform of 0-20°, including non-, external, and elastic ankle braces...
December 27, 2022: Bioengineering
https://read.qxmd.com/read/36588427/concussion-increases-within-player-injury-risk-in-male-professional-rugby-union
#11
JOURNAL ARTICLE
Isabel S Moore, Charlotte Leah Bitchell, Danielle Vicary, James Rafferty, Ben Charles Robson, Prabhat Mathema
OBJECTIVES: To assess within-player change in injury risk and between-player subsequent injury risk associated with concussive and common non-concussive injuries in professional rugby union. METHODS: This prospective cohort study in Welsh professional male rugby union analysed within-player and between-player injury risk for five common injuries: concussion, thigh haematoma, hamstring muscle strain, lateral ankle sprain and acromioclavicular joint sprain. Survival models quantified within-player injury risk by comparing precommon (before) injury risk to postcommon (after) injury risk, whereas between-player subsequent injury risk was quantified by comparing players who had sustained one of the common injuries against those who had not sustained the common injury...
December 13, 2022: British Journal of Sports Medicine
https://read.qxmd.com/read/36237657/the-effectiveness-of-trunk-and-balance-warm-up-exercises-in-prevention-severity-and-length-of-limitation-from-overuse-and-acute-lower-limb-injuries-in-male-volleyball-players
#12
JOURNAL ARTICLE
Yuki Muramoto, Hironobu Kuruma
Background: Injuries in volleyball players are most common in the ankles and knees. Many volleyball players suffer from overuse injuries because of the strain placed on the lower extremities from repeated jumping. A characteristic of players who are most at risk for lower extremity injuries is the tendency to display trunk instability during landing, such as lateral flexion and rotation. Research has shown the effectiveness of exercise-based warm-up interventions for acute volleyball injuries...
2022: International Journal of Sports Physical Therapy
https://read.qxmd.com/read/36176930/ligament-repair-method-for-sports-dancers-based-on-health-monitoring
#13
JOURNAL ARTICLE
Jijin Sun, Yan Sheng
In sports dance training, the injury rate of athletes' ligaments is higher than that of ordinary ones. Careful study of ligament repair methods can better prolong the sports life of sports dance athletes. The purpose of this paper is to investigate how to analyze ligament repair in sports dancers based on health monitoring. This paper proposes a deep learning algorithm based on health monitoring and a neural network algorithm, both of which have the function of prediction. The experimental results of this paper show that the common injuries in sports dance include ankle ligament injury, medial and lateral knee ligament strain, lumbar muscle strain, toe joint strain, shoulder deltoid strain and other injuries...
2022: Contrast Media & Molecular Imaging
https://read.qxmd.com/read/36121825/the-effect-of-footwear-on-mechanical-behaviour-of-the-human-ankle-plantar-flexors-in-forefoot-runners
#14
JOURNAL ARTICLE
Jason Bonacci, Wayne Spratford, Claire Kenneally-Dabrowski, Danielle Trowell, Adrian Lai
PURPOSE: To compare the ankle plantar-flexor muscle-tendon mechanical behaviour during barefoot and shod forefoot running. METHODS: Thirteen highly trained forefoot runners performed five overground steady-state running trials (4.5 ± 0.5 m.s-1) while barefoot and shod. Three-dimensional kinematic and ground reaction force data were collected and used as inputs for musculoskeletal modelling. Muscle-tendon behaviour of the ankle plantar-flexors (soleus; medial gastrocnemius; and lateral gastrocnemius) were estimated across the stance phase and compared between barefoot and shod running using a two-way multivariate analysis of variance...
2022: PloS One
https://read.qxmd.com/read/36119122/effect-of-accelerated-rehabilitation-on-early-return-to-sport-after-arthroscopic-ankle-lateral-ligament-repair
#15
JOURNAL ARTICLE
Atsushi Teramoto, Yasutaka Murahashi, Katsunori Takahashi, Kota Watanabe, Toshihiko Yamashita
BACKGROUND: Although the minimal invasiveness of arthroscopic ankle lateral ligament repair (ALLR) means that an early return to sporting activities can be anticipated, studies have described postoperative cast immobilization and the avoidance of weightbearing for a certain period. Accelerated rehabilitation may be helpful for an early return to sport. PURPOSE: To investigate clinical outcomes of ALLR and accelerated rehabilitation with a minimum duration of postoperative ankle immobilization and proactive early weightbearing...
September 2022: Orthopaedic Journal of Sports Medicine
https://read.qxmd.com/read/35923302/the-surgical-procedure-in-managing-peroneal-tendon-injury-a-case-series
#16
Astuti Pitarini, Maria Anastasia, Dave Kennedy, Endrotomo Sumargono, Erica Kholinne
Introduction: Peroneal tendon injury is one of the pathological ankle conditions which causes pain and is frequently misdiagnosed as ankle sprain. There is a variety of peroneal tendon injuries, depending on the mechanism of injury. We report a series of three peroneal injuries in our institution. Case Presentation: All three of the patients presented with ankle pain and instability following injuries. There was a presence of peroneus quartus in one of the patients...
2022: Orthopedic Research and Reviews
https://read.qxmd.com/read/35798616/calcaneal-positioning-in-equinus-immobilization-of-the-ankle-joint-a-comparison-of-common-orthoses-used-in-the-treatment-of-acute-achilles-tendon-ruptures
#17
JOURNAL ARTICLE
Rasmus Kramer Mikkelsen, Sanja Somodi, Per Hölmich, Kristoffer Weisskirchner Barfod
Orthoses are an important part of both conservative and operative treatment of acute Achilles tendon rupture as they can be used to position the foot in equinus and protect the torn tendon from strain in the healing phase. The aim of the study was to test four different orthoses ability to position the foot in equinus. The study was performed as a cross-sectional study. 15 healthy study participants underwent radiographic examination with 11 true lateral radiographs of the right ankle and foot, one with the ankle joint in neutral position; one of a circular equinus cast (CEC); three of an adjustable equinus boot (AEB) with the foot in 30°, 15°, and 0° of plantar flexion, respectively; three of a fixed angle orthosis with 1, 2, and 3 wedges with a plateau (WWP); and three of a fixed angle orthosis with 1, 2, and 3 wedges without plateau (WWOP)...
December 2022: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://read.qxmd.com/read/35767036/impact-of-increasing-total-knee-replacement-constraint-within-a-single-implant-line-on-coronal-stability-an-ex-vivo-investigation
#18
JOURNAL ARTICLE
Pieter Berger, Darshan S Shah, Orçun Taylan, Josh Slane, Ronny De Corte, Lennart Scheys, Hilde Vandenneucker
INTRODUCTION: Despite the existence of diverse total knee implant designs, few data is available on the relationship between the level of implant constraint and the postoperative joint stability in the frontal plane and strain in the collateral ligaments. The current study aimed to document this relation in an ex vivo setting. MATERIALS AND METHODS: Six fresh-frozen lower limbs underwent imaging for preparation of specimen-specific surgical guides. Specimens were dissected and assessed for joint laxity using the varus-valgus stress tests at fixed knee flexion angles...
June 29, 2022: Archives of Orthopaedic and Trauma Surgery
https://read.qxmd.com/read/35596976/adaptations-for-bipedal-walking-musculoskeletal-structure-and-three-dimensional-joint-mechanics-of-humans-and-bipedal-chimpanzees-pan-troglodytes
#19
JOURNAL ARTICLE
Matthew C O'Neill, Brigitte Demes, Nathan E Thompson, Susan G Larson, Jack T Stern, Brian R Umberger
Humans are unique among apes and other primates in the musculoskeletal design of their lower back, pelvis, and lower limbs. Here, we describe the three-dimensional ground reaction forces and lower/hindlimb joint mechanics of human and bipedal chimpanzees walking over a full stride and test whether: 1) the estimated limb joint work and power during the stance phase, especially the single-support period, is lower in humans than bipedal chimpanzees, 2) the limb joint work and power required for limb swing is lower in humans than in bipedal chimpanzees, and 3) the estimated total mechanical power during walking, accounting for the storage of passive elastic strain energy in humans, is lower in humans than in bipedal chimpanzees...
May 17, 2022: Journal of Human Evolution
https://read.qxmd.com/read/35504121/plantar-pressure-profile-during-walking-is-associated-with-talar-cartilage-characteristics-in-individuals-with-chronic-ankle-instability
#20
JOURNAL ARTICLE
Danielle M Torp, Abbey C Thomas, Tricia Hubbard-Turner, Luke Donovan
BACKGROUND: Individuals with chronic ankle instability typically present with abnormal gait patterns favoring the lateral foot. This gait pattern may alter cartilage stress potentially increasing the risk of osteoarthritis development, thus exploring this relationship may provide insights for early interventions. The purpose of this study was to examine the relationship gait biomechanics and talar articular cartilage characteristics. METHODS: Talar articular cartilage was assessed with ultrasound at rest and after walking for 30-min in twenty-five adults (14 females, 22...
May 2022: Clinical Biomechanics
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