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https://www.readbyqxmd.com/read/28912649/does-live-high-train-low-and-high-hypoxic-training-alter-running-mechanics-in-elite-team-sport-players
#1
Olivier Girard, Grégoire P Millet, Jean-Benoit Morin, Franck Brocherie
This study aimed to investigate if "Live High-Train Low (and High)" hypoxic training alters constant-velocity running mechanics. While residing under normobaric hypoxia (≥14 h·d(-1); FiO2 14.5-14.2%) for 14 days, twenty field hockey players performed, in addition to their usual training in normoxia, six sessions (4 × 5 × 5-s maximal sprints; 25 s passive recovery; 5 min rest) under either normobaric hypoxia (FiO2 ~14.5%, n = 9) or normoxia (FiO2 20.9%, n = 11). Before and immediately after the intervention, their running pattern was assessed at 10 and 15 km·h(-1) as well as during six 30-s runs at ~20 km·h(-1) with 30-s passive recovery on an instrumented motorised treadmill...
September 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28905381/false-positive-pregnancy-test-after-transfusion-of-solvent-detergent-treated-plasma
#2
Petra Jilma-Stohlawetz, Tim Wreford-Bush, Francesca Mills, Fiona Davidson, Friedrich W Kursten, Bernd Jilma, Janet Birchall
BACKGROUND: The transmission of pathogens, antibodies, and proteins is a possible consequence of blood product transfusion. A female patient had an unexpected positive serum β-human chorionic gonadotropin result, indicative of pregnancy, after she had received a transfusion with 1 unit of platelet concentrate, 4 units of red blood cells, and 4 units of pooled solvent/detergent-treated plasma (Octaplas). STUDY DESIGN AND METHODS: To investigate the possibility of passive transfusion of β-human chorionic gonadotropin from the plasma transfusion, one additional unit from the same batch was thawed and analyzed...
September 14, 2017: Transfusion
https://www.readbyqxmd.com/read/28903771/novel-spatiotemporal-analysis-of-gait-changes-in-body-weight-supported-treadmill-trained-rats-following-cervical-spinal-cord-injury
#3
Nathan D Neckel
BACKGROUND: Common gait measures such as stride length, cycle time, and step height are not independent variables, but different aspects of the same multidimensional step. This complicates comparisons between experimental groups. Here we present a novel multidimensional gait analysis method and use this method to assess the ability of body weight supported treadmill training (BWSTT) to improve rodent stepping after spinal cord injury (SCI). METHODS: In lieu of reducing a step to a collection of gait measures and comparing the means of several of these, we developed a multidimensional analysis technique that compares the step as a whole...
September 13, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28888900/sliding-enhances-fluid-and-solute-transport-into-buried-articular-cartilage-contacts
#4
Brian T Graham, Axel C Moore, David L Burris, Christopher Price
OBJECTIVE: Solutes and interstitial water are naturally transported from cartilage by load-induced interstitial fluid pressures. Fluid and solute recovery during joint articulation have been primarily attributed to passive diffusion and mechanical 'pumping' from dynamic loading. This paper tests if the sliding action of articulation is a significant and independent driver of fluid and solute transport in cartilage. DESIGN: The large osteochondral samples utilized in the present study preserve the convergent wedges necessary for physiological hydrodynamics...
September 6, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28877225/effect-of-water-based-recovery-on-blood-lactate-removal-after-high-intensity-exercise
#5
Francesco Lucertini, Marco Gervasi, Giancarlo D'Amen, Davide Sisti, Marco Bruno Luigi Rocchi, Vilberto Stocchi, Piero Benelli
This study assessed the effectiveness of water immersion to the shoulders in enhancing blood lactate removal during active and passive recovery after short-duration high-intensity exercise. Seventeen cyclists underwent active water- and land-based recoveries and passive water and land-based recoveries. The recovery conditions lasted 31 minutes each and started after the identification of each cyclist's blood lactate accumulation peak, induced by a 30-second all-out sprint on a cycle ergometer. Active recoveries were performed on a cycle ergometer at 70% of the oxygen consumption corresponding to the lactate threshold (the control for the intensity was oxygen consumption), while passive recoveries were performed with subjects at rest and seated on the cycle ergometer...
2017: PloS One
https://www.readbyqxmd.com/read/28875598/recovery-of-proprioception-in-the-upper-extremity-by-robotic-mirror-therapy-a-clinical-pilot-study-for-proof-of-concept
#6
Hyung Seok Nam, Sukgyu Koh, Jaewon Beom, Yoon Jae Kim, Jang Woo Park, Eun Sil Koh, Sun Gun Chung, Sungwan Kim
A novel robotic mirror therapy system was recently developed to provide proprioceptive stimulus to the hemiplegic arm during a mirror therapy. Validation of the robotic mirror therapy system was performed to confirm its synchronicity prior to the clinical study. The mean error angle range between the intact arm and the robot was 1.97 to 4.59 degrees. A 56-year-old male who had right middle cerebral artery infarction 11 months ago received the robotic mirror therapy for ten 30-minute sessions during 2 weeks...
October 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28872381/pneumatic-compression-fails-to-improve-performance-recovery-in-trained-cyclists
#7
Ryan G Overmayer, Matthew W Driller
PURPOSE: To examine the efficacy of Intermittent Sequential Pneumatic Compression (ISPC) on exercise recovery and subsequent performance, when implemented between a 20-min cycling bout (simulated scratch race) and a 4-min cycling test (simulated individual pursuit), as experienced during an Omnium track cycling competition. METHODS: Twenty-one (13 male, 8 female, mean ± SD; age: 36 ± 14 years) trained cyclists completed a familiarisation trial followed by two experimental trials in a counterbalanced, crossover design...
September 5, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28870476/branched-chain-amino-acid-supplementation-and-exercise-induced-muscle-damage-in-exercise-recovery-a%C3%A2-meta-analysis-of-randomized-clinical-trials
#8
REVIEW
Mohammad Hossein Rahimi, Sakineh Shab-Bidar, Mehdi Mollahosseini, Kurosh Djafarian
OBJECTIVE: Accumulating evidence suggests positive effects of branched-chain amino acids (BCAAs) on moderate muscle damage. However, findings vary substantially across studies. The aim of this review was to examine the effect of BCAAs on recovery following exercise-induced muscle damage. METHODS: Controlled trials were identified through a computerized literature search and tracking of citations performed up to November 2015. To pool data, either a fixed-effects or a random-effects model was used; for assessing heterogeneity, Cochran's Q and I(2) tests were used...
October 2017: Nutrition
https://www.readbyqxmd.com/read/28870058/technologically-advanced-assessment-of-upper-limb-spasticity-a-pilot-study
#9
Federico Posteraro, Simona Crea, Stefano Mazzoleni, Mihai Berteanu, Ileana Ciobanu, Nicola Vitiello, Marco Cempini, Sabata Gervasio, Natalie Mrachacz-Kersting
BACKGROUND: Spasticity is a muscle disorder associated with upper motor neuron syndrome occurring in neurological disorders, such as stroke, multiple sclerosis, spinal cord injury and others. It influences the patient's rehabilitation, interfering with function, limiting independence, causing pain and producing secondary impairments, such as contractures or other complications. Due to the heterogeneity of clinical signs of spasticity, there is no agreement on the most appropriate assessment and measurement modality for the evaluation of treatment outcomes...
September 4, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28868177/re-passive-smoking-also-affects-recovery-from-anaesthesia
#10
Ömür Öztürk, Gülbin Yalçın Sezen, Handan Ankaralı, Onur Özlü, Yavuz Demiraran, Hakan Ateş, Burhan Dost
No abstract text is available yet for this article.
August 2017: Turkish Journal of Anaesthesiology and Reanimation
https://www.readbyqxmd.com/read/28868176/passive-smoking-also-affects-recovery-from-anaesthesia
#11
COMMENT
Ömer Lütfi Erhan, Abdurrahman İleri, Oğuz Kağan Bulut, Ayşe Belin Özer
No abstract text is available yet for this article.
August 2017: Turkish Journal of Anaesthesiology and Reanimation
https://www.readbyqxmd.com/read/28858839/axonal-excitability-and-conduction-alterations-caused-by-levobupivacaine-in-rat
#12
Seçkin Tuncer, Tülay Tuncer Peker, İlksen Burat, Erhan Kiziltan, Barkin İlhan, Nizamettin Dalkiliç
In this study, effects of the long-acting amide-type local anesthetic levobupivacaine on axonal conduction and excitability parameters of the rat sciatic nerve were thoroughly examined both in vitro and in vivo. In order to deduce its effects on isolated nerve conduction, compound nerve action potential (CNAP) recordings were performed using the suction method over sciatic nerves of Wistar rats before and after administration of 0.05 % (1.7 mmol L-1) levobupivacaine. Levobupivacaine caused complete CNAP area and amplitude depression by blocking conduction in a time-dependent manner...
September 1, 2017: Acta Pharmaceutica
https://www.readbyqxmd.com/read/28857575/down-regulation-of-love-feelings-after-a-romantic-break-up-self-report-and-electrophysiological-data
#13
Sandra J E Langeslag, Michelle E Sanchez
Because remaining love feelings for an ex-partner are negatively associated with recovery from a romantic break-up, it may be helpful to decrease those love feelings. Love regulation is the use of behavioral or cognitive strategies to change the intensity of current feelings of romantic love. This study evaluated three regulation strategies: (1) negative reappraisal of the ex-partner, (2) reappraisal of love feelings, and (3) distraction. It was tested how these regulation strategies change love feelings for the ex-partner, valence of affect, and motivated attention for the ex-partner...
August 31, 2017: Journal of Experimental Psychology. General
https://www.readbyqxmd.com/read/28853547/a-supramolecular-nanofibre-based-passive-memory-device-for-remembering-past-humidity
#14
Umesha Mogera, Murali Gedda, Subi J George, Giridhar U Kulkarni
Memorizing the magnitude of a physical parameter such as relative humidity in a consignment, may be useful while maintaining recommended condition over a period of time. In relation to cost and energy considerations, it is important that the memorising device works in the unpowered passive state. In this article, we report the fabrication of a humidity-responsive device that can memorize the humidity condition it had experienced while being unpowered. The device makes use of supramolecular nanofibers obtained from the self-assembly of donor-acceptor (D-A) molecules, coronene tetracarboxylate salt (CS) and dodecyl methyl viologen (DMV) respectively, from aqueous medium...
August 30, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28852828/exercise-related-sensations-contribute-to-decrease-power-during-repeated-cycle-sprints-with-limited-influence-on-neural-drive
#15
Olivier Girard, François Billaut, Ryan J Christian, Paul S Bradley, David J Bishop
PURPOSES: We manipulated the inspired oxygen fraction (FiO2) to examine the effects of physiological perturbations on exercise-related sensations and the neural drive of the quadriceps during repeated, brief, maximal cycle sprints. METHODS: Nine active males completed a repeated sprint cycle protocol (10 × 4-s maximal sprints with 30 s of passive recovery) in normoxia (NM; FiO2 0.21) and severe normobaric hypoxia (HY; FiO2 0.13). Peak power, quadriceps Root Mean Squared electromyography (RMS EMG), physiological (heart rate, arterial oxygen saturation, blood lactate concentration) and perceptual responses were recorded...
August 29, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28834591/estimating-travel-time-in-bank-filtration-systems-from-a-numerical-model-based-on-dts-measurements
#16
Bas F des Tombe, Mark Bakker, Frans Schaars, Kees-Jan van der Made
An approach is presented to determine the seasonal variations in travel time in a bank filtration system using a passive heat tracer test. The temperature in the aquifer varies seasonally because of temperature variations of the infiltrating surface water and at the soil surface. Temperature was measured with distributed temperature sensing along fiber optic cables that were inserted vertically into the aquifer with direct push equipment. The approach was applied to a bank filtration system consisting of a sequence of alternating, elongated recharge basins and rows of recovery wells...
August 23, 2017: Ground Water
https://www.readbyqxmd.com/read/28819645/3d-imaging-of-optically-cleared-tissue-using-a-simplified-clarity-method-and-on-chip-microscopy
#17
Yibo Zhang, Yoonjung Shin, Kevin Sung, Sam Yang, Harrison Chen, Hongda Wang, Da Teng, Yair Rivenson, Rajan P Kulkarni, Aydogan Ozcan
High-throughput sectioning and optical imaging of tissue samples using traditional immunohistochemical techniques can be costly and inaccessible in resource-limited areas. We demonstrate three-dimensional (3D) imaging and phenotyping in optically transparent tissue using lens-free holographic on-chip microscopy as a low-cost, simple, and high-throughput alternative to conventional approaches. The tissue sample is passively cleared using a simplified CLARITY method and stained using 3,3'-diaminobenzidine to target cells of interest, enabling bright-field optical imaging and 3D sectioning of thick samples...
August 2017: Science Advances
https://www.readbyqxmd.com/read/28813942/robotic-assessment-of-the-contribution-of-motor-commands-to-wrist-position-sense
#18
Sara Contu, Francesca Marini, Lorenzo Masia
Assessing joint position sense for rehabilitation after neurological injury provides a prognostic factor in recovery and long-term functional outcomes. A common method for testing joint position sense involves the active replication of a joint configuration presented via a passive movement. However, recent evidence showed how this sense is mediated by the centrally generated signals of motor command, such that movements produced volitionally may be coded differently from passive movements and accuracy may be different when matching targets presented actively...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813902/hybrid-position-and-orientation-tracking-for-a-passive-rehabilitation-table-top-robot
#19
K K Wojewoda, P R Culmer, J F Gallagher, A E Jackson, M C Levesley
This paper presents a real time hybrid 2D position and orientation tracking system developed for an upper limb rehabilitation robot. Designed to work on a table-top, the robot is to enable home-based upper-limb rehabilitative exercise for stroke patients. Estimates of the robot's position are computed by fusing data from two tracking systems, each utilizing a different sensor type: laser optical sensors and a webcam. Two laser optical sensors are mounted on the underside of the robot and track the relative motion of the robot with respect to the surface on which it is placed...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813884/design-parameters-and-torque-profile-modification-of-a-spring-assisted-hand-opening-exoskeleton-module
#20
Nik R Butler, Stephen A Goodwin, Joel C Perry
There is a growing demand for functional rehabilitation orthotics that can effectively assist in patient recovery from motor impairments after stroke. The hand in particular is a complex system that has proven difficult to mimic with current exoskeleton technologies. This paper presents data-driven design parameters to increase the functionality and improve the assistance profile of the ArmAssist-2.0 hand module. Improvements from the previous model include adjustable linkages to fulfill the largest population of users, new joint locations to more accurately represent biomechanics of the hand, and a more impairment-appropriate torque profile to assist in hand opening, adjustable through interchangeable springs...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
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