keyword
MENU ▼
Read by QxMD icon Read
search

Pulled muscle

keyword
https://www.readbyqxmd.com/read/29036874/development-of-a-device-to-reduce-the-risk-of-injury-in-handling-unstable-loads
#1
Mohamed Zaki Ramadan, Mohammed Alkahtani
BACKGROUND: Manual material handling (MMH) task is the most common cause of work-related musculoskeletal disorders (MSDs). Operators carrying unstable loads were recently shown to be at greater risk of back injury compared to workers carrying stable loads. OBJECTIVE: This study focused on developing a device to minimize trunk muscle activity and cardiovascular demand while handling a 19-liter bottle. METHOD: After evaluating several designs, one was selected to be developed, manufactured and tested through an experimental study...
October 10, 2017: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/29031173/an-unusual-case-of-transpelvic-impalement-injury-a-case-report
#2
Mushrek Alani, Saeed Mahmood, Ayman El-Menyar, Sajid Atique, Hassan Al-Thani, Ruben Peralta
INTRODUCTION: Impalement injury is a rare type of mechanical injury following forceful insertion of projecting object into the body. Careful planning for removal of the impaling object is essential to decrease the blood loss and preserve the function of the injured organ. PRESENTATION OF CASE: A 27 year-old male fell from 4m height over a U shaped projecting up metallic bar. The bar penetrated the left side of the pelvis and traversed through the left iliac bone causing a comminuted fracture in the supra-acetabular region extending to the left psoas muscle, injuring the viscera and causing fracture of the right femur...
October 5, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29016476/effects-of-in-season-circuit-training-on-physical-abilities-in-male-handball-players
#3
Souhail Hermassi, Rainer Wollny, René Schwesig, Roy J Shephard, Mohamed Souhaiel Chelly
This study analyzed the effects of a resistance-type circuit training program (RCT) (30-35 minutes, performed twice a week for 10 weeks) on male handball players. Twenty-two males were divided into experimental (E; age 20.3 ± 0.5 years) and control groups (C; age 20.1± 0.5 years). Measures before and after RCT included squat (SJ) and countermovement jumps (CMJ), one repetition maximum (1-RM) ofbench press, pull-over and back half-squats, throwing velocity (a 3-step throw with run (RT), and a jump throw (JT)), repeated-sprint ability (six 2 x 15-m shuttle sprints with recording of best time for a single trial), anthropometric estimates of leg and thigh muscle volumes and mean thigh cross-sectional area (CSA), and a test of agility...
October 7, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28991350/neuroanatomical-structures-in-human-extraocular-muscles-and-their-potential-implication-in-the-development-of-oculomotor-disorders
#4
Ala Paduca, Jan Richard Bruenech
The potential role of sensory feedback from human extraocular muscles has been subjected to considerable speculation in the ophthalmic literature. Extraocular muscles pull against a fairly even load and do not initiate a stretch reflex, even when the eyes are directed toward the boundaries of their respective field of action. These unique working conditions and physiological properties have led to the notion that the sensory signal arising from receptors in extraocular muscles differs from the conventional proprioceptive signal arising from their somatic counterparts...
October 9, 2017: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28989101/securing-extraocular-muscles-in-strabismus-surgery-laboratory-analysis-of-biomechanical-parameters-related-to-the-suture
#5
Steven E Brooks
PURPOSE: To investigate the tensile properties of several components used to secure extraocular muscle to sclera in strabismus surgery to determine potential failure points. METHODS: A digital force gauge measured the tensile strength of intact or damaged 6-0 Vicryl suture (Ethicon, Somerville, NJ), as well as threads tied in a 2-1-1 or 2-1-1-1 surgeon's knot configuration. Human sclera was used to test the resistance to drag of knotted and unknotted 6-0 Vicryl suture thread through partial thickness sclera...
October 5, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28986144/motor-axons-are-guided-to-exit-points-in-the-spinal-cord-by-slit-and-netrin-signals
#6
Minkyung Kim, Tatiana M Fontelonga, Clare H Lee, Sarah J Barnum, Grant S Mastick
In the spinal cord, motor axons project out the neural tube at specific exit points, then bundle together to project toward target muscles. The molecular signals that guide motor axons to and out of their exit points remain undefined. Since motor axons and their exit points are located near the floor plate, guidance signals produced by the floor plate and adjacent ventral tissues could influence motor axons as they project toward and out of exit points. The secreted Slit proteins are major floor plate repellents, and motor neurons express two Slit receptors, Robo1 and Robo2...
October 3, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28960519/schisandrin-b-down-regulated-lncrna-bcyrn1-expression-of-airway-smooth-muscle-cells-by-improving-mir-150-expression-to-inhibit-the-proliferation-and-migration-of-asmc-in-asthmatic-rats
#7
Xiao-Yu Zhang, Xue-Yi Tang, Li-Jun Ma, Ya-Li Guo, Xiao-Su Li, Li-Min Zhao, Cui-Jie Tian, Dong-Jun Cheng, Zhuo-Chang Chen, Luo-Xian Zhang
OBJECTIVE: The mechanism of Schisandrin B on the proliferation and migration of airway smooth muscle cells (ASMCs) in asthmatic rats was explored. METHODS: SD rats were divided into three groups: control (group 1), model (group 2) and model + Schisandrin B (group 3). miR-150 and lncRNA BCYRN1 levels were measured by qRT-PCR. The combination of BCYRN1 and miR-150 was detected by RNA pull down. ASMCs' viability/proliferation/migration were examined by WST-1 assay and 24-well Transwell system...
September 27, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28926968/weakening-pin-bone-attachment-in-fish-fillets-using-high-intensity-focused-ultrasound
#8
Martin H Skjelvareid, Svein Kristian Stormo, Kristín Anna Þórarinsdóttir, Karsten Heia
High Intensity Focused Ultrasound (HIFU) can be used for the localized heating of biological tissue through the conversion of sound waves into heat. Although originally developed for human medicine, HIFU may also be used to weaken the attachment of pin bones in fish fillets to enable easier removal of such bones. This was shown in the present study, where a series of experiments were performed on HIFU phantoms and fillets of cod and salmon. In thin objects such as fish fillets, the heat is mainly dissipated at the surfaces...
September 18, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28864862/is-the-novel-olecranon-tension-plate-a-valid-alternative-to-tension-band-wiring-of-olecranon-fractures-a-biomechanical-study-on-cadaver-bones
#9
Dominik Gruszka, Charlotte Arand, Julia Greenfield, Tobias E Nowak, Raphael Kuechle, Sebastian Kuhn, Pol M Rommens
INTRODUCTION: Tension band wiring (TBW) used for olecranon fractures is afflicted with a high rate of complications. The aim of this study was to compare the stability of the TBW versus an alternative, novel low-profile olecranon tension plate (OTP) with angular stable screws in a simulated complex fracture model. MATERIALS AND METHODS: Nine fresh-frozen pairs of cadaver proximal ulnae with an oblique osteotomy and an additional wedge fragment simulating an unstable fracture were tested...
September 1, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28855187/inhibition-of-smooth-muscle-contraction-and-arf-6-activity-by-the-inhibitor-for-cytohesin-gefs-secinh3-in-the-human-prostate
#10
Annika Herlemann, Patrick Keller, Melanie Schott, Alexander Tamalunas, Anna Ciotkowska, Beata Rutz, Yiming Wang, Qingfeng Yu, Raphaela Waidelich, Frank Strittmatter, Christian G Stief, Christian Gratzke, Martin Hennenberg
Prostate smooth muscle contraction is critical for etiology and treatment of male lower urinary tract symptoms (LUTS), and is promoted by small monomeric GTPases (RhoA, Rac). GTPases may be activated by guanosine nucleotide exchange factors (GEFs). GEFs of the cytohesin family may indirectly activate Rac, or ADP ribosolyation factor (ARF) GTPases directly. Here we investigated the expression of cytohesin family GEFs, and effects of the cytohesin inhibitor secinH3 on smooth muscle contraction and GTPase activities in human prostate tissues...
August 30, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28846707/kek-6-a-truncated-trk-like-receptor-for-drosophila-neurotrophin-2-regulates-structural-synaptic-plasticity
#11
Suzana Ulian-Benitez, Simon Bishop, Istvan Foldi, Jill Wentzell, Chinenye Okenwa, Manuel G Forero, Bangfu Zhu, Marta Moreira, Mark Phizacklea, Graham McIlroy, Guiyi Li, Nicholas J Gay, Alicia Hidalgo
Neurotrophism, structural plasticity, learning and long-term memory in mammals critically depend on neurotrophins binding Trk receptors to activate tyrosine kinase (TyrK) signaling, but Drosophila lacks full-length Trks, raising the question of how these processes occur in the fly. Paradoxically, truncated Trk isoforms lacking the TyrK predominate in the adult human brain, but whether they have neuronal functions independently of full-length Trks is unknown. Drosophila has TyrK-less Trk-family receptors, encoded by the kekkon (kek) genes, suggesting that evolutionarily conserved functions for this receptor class may exist...
August 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28834834/three-dimensional-analysis-of-midfacial-soft-tissue-changes-after-maxillary-posterior-impaction-and-intraoral-vertical-ramus-osteotomy-for-mandibular-setback-in-class-iii-patients
#12
Seung-Won Seo, Young-Soo Jung, Hyoung-Seon Baik
This study investigated the correlation between the 3-dimensional changes in midfacial soft tissues, including the parasagittal area and maxilla-mandible complex, after Le Fort I maxillary posterior impaction and bilateral intraoral vertical ramus osteotomy (B-IVRO), using cone-beam computed tomography (CBCT). This retrospective study included 22 skeletal Class III patients (6 men and 16 women; mean age 21.6 years) who underwent orthognathic surgery. Three-dimensional CBCT images taken before and 1 year after surgery were superimposed based on the cranial base...
October 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28832013/model-and-experiments-to-optimize-co-adaptation-in-a-simplified-myoelectric-control-system
#13
Mathilde Couraud, Daniel Cattaert, Florent Paclet, Pierre-Yves Oudeyer, Aymar de Rugy
OBJECTIVE: To compensate for a limb lost in an amputation, myoelectric prostheses use surface electromyography (EMG) from the remaining muscles to control the prosthesis. Despite considerable progress, myoelectric controls remain markedly different from the way we normally control movements, and require intense user adaptation. To overcome this, our goal is to explore concurrent machine co-adaptation techniques that are developed in the field of brain-machine interface, and that are beginning to be used in myoelectric controls...
August 23, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28828073/electromyographical-comparison-of-a-traditional-suspension-device-and-towel-pull-up
#14
Ronald L Snarr, Ashleigh V Hallmark, Jason C Casey, Michael R Esco
Strengthening muscles of the back may have various implications for improving functions of daily living, aiding in the transfer of power in throwing, and assist in injury prevention of the shoulder complex. While several versions of the pull-up exist, there is currently no literature comparing their differences. The purpose of this investigation was to compare the electromyographical activity of the latissimus dorsi, posterior deltoid, middle trapezius, and biceps brachii while performing three variations of the pull-up...
September 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28817708/timing-and-extent-of-finger-force-enslaving-during-a-dynamic-force-task-cannot-be-explained-by-emg-activity-patterns
#15
Mojtaba Mirakhorlo, Huub Maas, DirkJan H E J Veeger
Finger enslaving is defined as the inability of the fingers to move or to produce force independently. Such finger enslaving has predominantly been investigated for isometric force tasks. The aim of this study was to assess whether the extent of force enslaving is dependent on relative finger movements. Ten right-handed subjects (22-30 years) flexed the index finger while counteracting constant resistance forces (4, 6 and 8 N) orthogonal to the fingertip. The other, non-instructed fingers were held in extension...
2017: PloS One
https://www.readbyqxmd.com/read/28816914/congenital-hypotonia-in-toddlerhood
#16
Naomi Steiner, Alcy Torres, Arathi Reddy, Marilyn Augustyn
David is a 22-month-old boy who is new to your practice. He recently moved from a rural area in the Midwest. His father is in the United States Air Force, and his mother works as a full-time homemaker. Their household includes 5 older siblings. The family moves every year because of the father's Air Force placement.David was born full-term in Virginia, with no reported pregnancy complications and no alcohol, tobacco, or drug exposure. He was delivered vaginally, with Apgar scores of 7 and 9, respectively and no respiratory issues...
September 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/28814032/studying-the-implementation-of-iterative-impedance-control-for-assistive-hand-rehabilitation-using-an-exoskeleton
#17
T Martineau, R Vaidyanathan
A positive training synergy can be obtained when two individuals attempt to learn the same motor task while mechanically coupled to one another. In this paper, we have studied how mimicking this interaction through impedance control can be exploited to improve assistance delivered by hand exoskeleton devices during rehabilitation. In this context, the machine and user take complementary roles akin to two coupled individuals. We present the derivation of a dynamic model of the human hand for the purpose of controller development for new hand exoskeleton platforms...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28807512/non-linear-finite-element-model-to-assess-the-effect-of-tendon-forces-on-the-foot-ankle-complex
#18
Enrique Morales-Orcajo, Thales R Souza, Javier Bayod, Estevam Barbosa de Las Casas
A three-dimensional foot finite element model with actual geometry and non-linear behavior of tendons is presented. The model is intended for analysis of the lower limb tendon forces effect in the inner foot structure. The geometry of the model was obtained from computational tomographies and magnetic resonance images. Tendon tissue was characterized with the first order Ogden material model based on experimental data from human foot tendons. Kinetic data was employed to set the load conditions. After model validation, a force sensitivity study of the five major foot extrinsic tendons was conducted to evaluate the function of each tendon...
August 11, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28771525/the-role-of-physique-strength-and-endurance-in-the-achievements-of-elite-climbers
#19
Mariusz Ozimek, Robert Rokowski, Paweł Draga, Vladimir Ljakh, Tadeusz Ambroży, Marcin Krawczyk, Tomasz Ręgwelski, Arkadiusz Stanula, Karol Görner, Adam Jurczak, Dariusz Mucha
PURPOSE: The primary aim of this study is to determine the principal somatic and motor determinants for elite climbers. METHODS: Twenty climbers were examined [age: 28.5±6.1 years].The runners were divided into two groups based on their climbing level, according to the International Rock Climbing Research Association (IRCRA). Elite climbers represented a 8b-8c Rotpunkt (RP) climbing level (n = 6), and advanced climbers represented an 7c+-8a RP level (n = 14). The following measurements were assessed: height, weight, lean body mass, upper limb length, arm span, and forearm, arm, thigh and calf circumference...
2017: PloS One
https://www.readbyqxmd.com/read/28768344/determining-bilateral-strength-imbalances-in-youth-basketball-athletes
#20
Christopher Thomas, Paul Comfort, Thomas Dos'Santos, Paul A Jones
The aims of this study were: 1) to compare the strongest (D) and weakest (ND) limbs in determining muscle strength asymmetry (MSA) ratios among various muscle strength qualities and 2) to determine the relationships among various muscle strength qualities. 17 youth male basketball athletes (age=17.5±0.8 years; height=187.1±9.4 cm; body mass=81.4±10.1 kg) participated in this study. Knee flexor and extensor strength at 60°·s(-1) was assessed for both limbs with the use of isokinetic dynamometry. Other tests involved single-leg hop (SLH), countermovement jump (CMJ) and isometric mid-thigh pull (IMTP)...
September 2017: International Journal of Sports Medicine
keyword
keyword
10851
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"