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https://www.readbyqxmd.com/read/28319528/postburn-microstomia-prevention-using-an-appliance-providing-simultaneous-horizontal-and-vertical-adjustable-forces
#1
Gregory S Antonarakis, Sandra Fastlicht, Taras Masnyi, Bryan Tompson
Microstomia, an abnormally small oral orifice, is a complication of perioral facial burns. In this case, contraction of the circumoral tissues and hypotonia of the musculature is responsible for this microstomia, which can produce aesthetic and functional impairment with eating, swallowing, communication (speech and facial expressions), compromised dental care and maintenance due to limited oral access, social interactions, and psychological well-being. Conservative management involves providing physical resistance to scar contracture, with opposing horizontal and vertical circumoral forces by means of appliances that aim to stretch the commissures and fibrotic muscles...
March 13, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28290280/combined-effect-of-shearing-and-cooling-rate-on-the-rheology-of-organogels-developed-by-selected-gelators
#2
A De la Peña-Gil, F M Álvarez-Mitre, M M González-Chávez, M A Charó-Alonso, J F Toro-Vazquez
In this study we investigated the combined effect of shearing and cooling rate in the rheology of organogels developed in high oleic safflower oil by (R)-12-hydroxystearic acid (HSA), its primary amide derivative [(R)-12-hydroxyoctadecanamide, HOA], and the N-octadecyl derivative of HOA [(R)-N-octadecyl-12-hydroxyoctadecanamide, OHOA]. The experimental set up to develop the organogels involved: 1). The use of quiescent (0s(-1)) or shearing (300, 600, and 1200s(-1)) conditions during cooling the gelator solutions (2%) just until achieving the gelator's melting temperature (TM) in the vegetable oil, to then continuing the cooling under static conditions until achieving 15°C) The use of cooling rate protocols involving a constant cooling rate of 1°C/min (CR1) or 10°C/min (CR10) in the shearing and static stages, or variable cooling rates in each stage (i...
March 2017: Food Research International
https://www.readbyqxmd.com/read/28288544/dynamic-range-of-motion-hindlimb-stretching-disrupts-locomotor-function-in-rats-with-moderate-subacute-spinal-cord-injuries
#3
Anastasia Valerievna Keller, Kathlene Marie Rees, Daniella Christina Prince, Johnny R Morehouse, Alice Shum-Siu, David Sk Magnuson
Joint contractures and spasticity are two common secondary complications of a severe spinal cord injury (SCI) that can significantly reduce quality of life and stretching is one of the top strategies for rehabilitation of these complications. We have previously shown that a daily static stretching protocol administered to rats at either acute or chronic time points after a moderate or moderate-severe T10 SCI significantly disrupts their hindlimb locomotor function. The objective of the current study was to examine the effects of dynamic range of motion stretching on the locomotor function of rats with SCI as an alternative to static stretching...
March 13, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28287021/evaluation-of-a-static-stretching-intervention-on-vascular-endothelial-function-and-arterial-stiffness
#4
Hiromi Shinno, Satoshi Kurose, Yutaka Yamanaka, Kyoko Higurashi, Yaeko Fukushima, Hiromi Tsutsumi, Yutaka Kimura
PURPOSE: Maintenance and enhancement of vascular endothelial function contribute to the prevention of cardiovascular disease and prolong a healthy life expectancy. Given the reversible nature of vascular endothelial function, interventions to improve this function might prevent arteriosclerosis. Accordingly, we studied the effects of a 6-month static stretching intervention on vascular endothelial function (reactive hyperaemia peripheral arterial tonometry index: RH-PAT index) and arterial stiffness (brachial-ankle pulse wave velocity: baPWV) and investigated the reversibility of these effects after a 6-month detraining period following intervention completion...
March 13, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28280975/the-effect-of-nordic-hamstring-strength-training-on-muscle-architecture-stiffness-and-strength
#5
Kayla D Seymore, Zachary J Domire, Paul DeVita, Patrick M Rider, Anthony S Kulas
PURPOSE: Hamstring strain injury is a frequent and serious injury in competitive and recreational sports. While Nordic hamstring (NH) eccentric strength training is an effective hamstring injury-prevention method, the protective mechanism of this exercise is not understood. Strength training increases muscle strength, but also alters muscle architecture and stiffness; all three factors may be associated with reducing muscle injuries. The purpose of this study was to examine the effects of NH eccentric strength training on hamstring muscle architecture, stiffness, and strength...
March 9, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28274273/acute-effects-of-foam-rolling-on-passive-tissue-stiffness-and-fascial-sliding-study-protocol-for-a-randomized-controlled-trial
#6
Frieder Krause, Jan Wilke, Daniel Niederer, Lutz Vogt, Winfried Banzer
BACKGROUND: Self-myofascial release (SMR) aims to mimic the effects of manual therapy and tackle dysfunctions of the skeletal muscle and connective tissue. It has been shown to induce improvements in flexibility, but the underlying mechanisms are still poorly understood. In addition to neuronal mechanisms, improved flexibility may be driven by acute morphological adaptations, such as a reduction in passive tissue stiffness or improved movement between fascial layers. The aim of the intended study is to evaluate the acute effects of SMR on the passive tissue stiffness of the anterior thigh muscles and the sliding properties of the associated fasciae...
March 9, 2017: Trials
https://www.readbyqxmd.com/read/28268750/a-wearable-skin-stretch-haptic-feedback-device-towards-improving-balance-control-in-lower-limb-amputees
#7
M A B Husman, H F Maqbool, M I Awad, A Abouhossein, A A Dehghani-Sanij
Haptic feedback to lower limb amputees is essential to maximize the functionality of a prosthetic device by providing information to the user about the interaction with the environment and the position of the prostheses in space. Severed sensory pathway and the absence of connection between the prosthesis and the Central Nervous System (CNS) after lower limb amputation reduces balance control, increases visual dependency and increases risk of falls among amputees. This work describes the design of a wearable haptic feedback device for lower limb amputees using lateral skin-stretch modality intended to serve as a feedback cue during ambulation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28265144/immediate-effects-of-graston-technique-on-hamstring-muscle-extensibility-and-pain-intensity-in-patients-with-nonspecific-low-back-pain
#8
Jong Hoon Moon, Jin-Hwa Jung, Young Sik Won, Hwi-Young Cho
[Purpose] The purpose of this study was to analyze the effect of Graston Technique on hamstring extensibility and pain intensity in patients with nonspecific low back pain. [Subjects and Methods] Twenty-four patients with nonspecific low back pain (27-46 years of age) enrolled in the study. All participants were randomly assigned to one of two groups: Graston technique group (n=12) and a static stretching group (n=12). The Graston Technique was used on the hamstring muscles of the experimental group, while the static stretching group performed static stretching...
February 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28256397/the-effects-of-a-combined-static-dynamic-stretching-protocol-on-athletic-performance-in-elite-gaelic-footballers-a-randomised-controlled-crossover-trial
#9
Martin Loughran, Philip Glasgow, Chris Bleakley, Joseph McVeigh
OBJECTIVES: To determine the effect of three different static-dynamic stretching protocols on sprint and jump performance in Gaelic footballers. DESIGN: Double-blind, controlled, crossover trial. SETTING: Sports Institute research environment. PARTICIPANTS: Seventeen male elite level Gaelic footballers, aged 18-30 years, completed three stretching protocols. MAIN OUTCOME MEASURES: Athletic performance was measured by countermovement jump height and power, and timed 10 m, 20 m, and 40 m sprints...
December 1, 2016: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28256235/cell-contractility-facilitates-alignment-of-cells-and-tissues-to-static-uniaxial-stretch
#10
Elisabeth G Rens, Roeland M H Merks
During animal development and homeostasis, the structure of tissues, including muscles, blood vessels, and connective tissues, adapts to mechanical strains in the extracellular matrix (ECM). These strains originate from the differential growth of tissues or forces due to muscle contraction or gravity. Here we show using a computational model that by amplifying local strain cues, active cell contractility can facilitate and accelerate the reorientation of single cells to static strains. At the collective cell level, the model simulations show that active cell contractility can facilitate the formation of strings along the orientation of stretch...
February 28, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28253058/the-comparison-of-instrument-assisted-soft-tissue-mobilization-and-self-stretch-measures-to-increase-shoulder-range-of-motion-in-overhead-athletes-a-critically-appraised-topic
#11
Matthew J Hussey, Alex E Boron-Magulik, Tamara C Valovich-McLeod, Cailee E Welch Bacon
Shoulder range of motion (ROM) in throwing athletes relies on a balance of mobility and stability in order to maintain proper function and health. Prior research has reported that deficits in internal rotation greater than 20 degrees, decreases in total arc of motion greater than 5 degrees when compared to the contralateral side, and decreases in horizontal adduction greater than 16 degrees have all been identified as factors that could lead to throwing related injuries.(1) Due to the increased risk of injury associated with ROM deficits, it is important for clinicians to be cognizant of how to most effectively treat these issues...
March 2, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28251401/effect-of-the-flexibility-training-performed-immediately-before-resistance-training-on-muscle-hypertrophy-maximum-strength-and-flexibility
#12
Roberto Moriggi Junior, Ricardo Berton, Thiago Mattos Frota de Souza, Mara Patrícia Traina Chacon-Mikahil, Cláudia Regina Cavaglieri
PURPOSE: It has been suggested that flexibility training may reduce the total volume of training during resistance trainings. The purpose of this study was to compare the effect of flexibility training immediately before resistance training (FLEX-RT) versus resistance training without flexibility training (RT) on maximum strength and the vastus lateralis muscle cross-sectional area (CSA). METHODS: Participants had each leg assigned to RT or FLEX-RT. Both groups performed four sets of leg extensions to voluntary failure of 80% of one repetition maximum (1RM); however, FLEX-RT performed two sets of 25 s of static stretching before resistance training...
March 1, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28240710/intermittent-but-not-continuous-static-stretching-improves-subsequent-vertical-jump-performance-in-flexibility-trained-athletes
#13
Gregory C Bogdanis, Olyvia Donti, Charilaos Tsolakis, Ilias Smilios, David J Bishop
This study examined changes in countermovement jump (CMJ) height after an intermittent or a continuous static stretching protocol of equal total duration. DESIGN: Sixteen male, elite-level gymnasts performed 90 s of intermittent (3 x 30 s with 30 s rest) or continuous stretching (90 s) of the quadriceps muscle. A single-leg stretching and jumping design was used, with the contra-lateral limb serving as a control. The same individuals performed both conditions with alternate legs in a randomized, counterbalanced order...
February 23, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28228037/water-dissociation-on-ni-100-ni-110-and-ni-111-surfaces-reaction-path-approach-to-mode-selectivity
#14
H Seenivasan, Bret Jackson, Ashwani K Tiwari
A comparative study of mode-selectivity of water dissociation on Ni(100), Ni(110), and Ni(111) surfaces is performed at the same level of theory using a fully quantum approach based on the reaction path Hamiltonian. Calculations show that the barrier to water dissociation on the Ni(110) surface is significantly lower compared to its close-packed counterparts. Transition states for this reaction on all three surfaces involve the elongation of one of the O-H bonds. A significant decrease in the symmetric stretching and bending mode frequencies near the transition state is observed in all three cases and in the vibrational adiabatic approximation, excitation of these softened modes results in a significant enhancement in reactivity...
February 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28228028/characterization-of-the-electronic-states-of-the-biological-relevant-ssno-molecule
#15
Tarek Ayari, Majdi Hochlaf, Muneerah Mogren Al-Mogren, Joseph S Francisco
Using configuration interaction ab initio methods, we investigate the lowest electronic states of doublet and quartet spin multiplicities of SSNO where the one-dimensional cuts of the six-dimensional potential energy surfaces of these electronic states along the stretching and bending coordinates are computed. Mainly, these electronic states are found to be repulsive along the central SN distance. A high density of electronic states is computed even at low excitation energies that may favor their couplings...
February 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28226938/a-wearable-skin-stretch-haptic-feedback-device-towards-improving-balance-control-in-lower-limb-amputees
#16
M A B Husman, H F Maqbool, M I Awad, A Abouhossein, A A Dehghani-Sanij, M A B Husman, H F Maqbool, M I Awad, A Abouhossein, A A Dehghani-Sanij, A Abouhossein, A A Dehghani-Sanij, M A B Husman, M I Awad, H F Maqbool
Haptic feedback to lower limb amputees is essential to maximize the functionality of a prosthetic device by providing information to the user about the interaction with the environment and the position of the prostheses in space. Severed sensory pathway and the absence of connection between the prosthesis and the Central Nervous System (CNS) after lower limb amputation reduces balance control, increases visual dependency and increases risk of falls among amputees. This work describes the design of a wearable haptic feedback device for lower limb amputees using lateral skin-stretch modality intended to serve as a feedback cue during ambulation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28217418/maximum-repetition-performance-after-different-antagonist-foam-rolling-volumes-in-the-inter-set-rest-period
#17
Estêvão Rios Monteiro, Jakob Škarabot, Andrew D Vigotsky, Amanda Fernandes Brown, Thiago Matassoli Gomes, Jefferson da Silva Novaes
BACKGROUND: Foam rollers, or other similar devices, are a method for acutely increasing range of motion, but in contrast to static stretching, do not appear to have detrimental effects on neuromuscular performance. PURPOSE: The purpose of this study was to investigate the effects of different volumes (60 and 120 seconds) of foam rolling of the hamstrings during the inter-set rest period on repetition performance of the knee extension exercise. METHODS: Twenty-five recreationally active females were recruited for the study (27...
February 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28184390/gold-nanoparticle-interactions-with-endothelial-cells-cultured-under-physiological-conditions
#18
C Freese, L Anspach, R C Deller, S-J Richards, M I Gibson, C J Kirkpatrick, R E Unger
PEGylated gold nanoparticles (AuNPs) have an extended circulation time after intravenous injection in vivo and exhibit favorable properties for biosensing, diagnostic imaging, and cancer treatment. No impact of PEGylated AuNPs on the barrier forming properties of endothelial cells (ECs) has been reported, but recent studies demonstrated that unexpected effects on erythrocytes are observed. Almost all studies to date have been with static-cultured ECs. Herein, ECs maintained under physiological cyclic stretch and flow conditions and used to generate a blood-brain barrier model were exposed to 20 nm PEGylated AuNPs...
February 10, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28182516/the-effectiveness-of-pnf-vs-static-stretching-on-increasing-hip-flexion-range-of-motion
#19
Landon Lempke, Rebecca Green, Caitlin Murray, Justin Stanek
No abstract text is available yet for this article.
February 9, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28179885/plyometric-training-favors-optimizing-muscle-tendon-behavior-during-depth-jumping
#20
Kuniaki Hirayama, Soichiro Iwanuma, Naoki Ikeda, Ayumi Yoshikawa, Ryoichi Ema, Yasuo Kawakami
The purpose of the present study was to elucidate how plyometric training improves stretch-shortening cycle (SSC) exercise performance in terms of muscle strength, tendon stiffness, and muscle-tendon behavior during SSC exercise. Eleven men were assigned to a training group and ten to a control group. Subjects in the training group performed depth jumps (DJ) using only the ankle joint for 12 weeks. Before and after the period, we observed reaction forces at foot, muscle-tendon behavior of the gastrocnemius, and electromyographic activities of the triceps surae and tibialis anterior during DJ...
2017: Frontiers in Physiology
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