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Total 527 results found since Jan 2013.

Impact of cool and warm water immersion on 50-m sprint performance and lactate recovery in swimmers.
CONCLUSION: Recovery by cool (26.7°C ) or warm (30.0°C) water immersion does not affect velocity or stroke characteristics in a 50-m freestyle sprint, even when widely employed performance related determinants -such as resting lactate levels and perceived exertion-are not optimal. PMID: 25028983 [PubMed - as supplied by publisher]
Source: Medical Physics - July 16, 2014 Category: Physics Authors: Soultanakis HN, Nafpaktitou D, Mandaloufa SM Tags: J Sports Med Phys Fitness Source Type: research

An enhanced nonlinear damping approach accounting for system constraints in active mass dampers
Publication date: 24 November 2015 Source:Journal of Sound and Vibration, Volume 357 Author(s): Ilaria Venanzi, Laura Ierimonti, Filippo Ubertini Active mass dampers are a viable solution for mitigating wind-induced vibrations in high-rise buildings and improve occupants׳ comfort. Such devices suffer particularly when they reach force saturation of the actuators and maximum extension of their stroke, which may occur in case of severe loading conditions (e.g. wind gust and earthquake). Exceeding actuators׳ physical limits can impair the control performance of the system or even lead to devices damage, with consequent...
Source: Journal of Sound and Vibration - September 1, 2015 Category: Physics Source Type: research

Neuropharmacology of Poststroke Motor and Speech Recovery.
This article summarizes the published literature for pharmacologic agents used for the enhancement of motor and speech recovery after stroke. Amphetamine, levodopa, selective serotonin reuptake inhibitors, and piracetam were the most commonly used drugs. Pharmacologic augmentation of stroke motor and speech recovery seems promising but systematic, adequately powered, randomized, and double-blind clinical trials are needed. At this point, the use of these pharmacologic agents is not supported by class I evidence. PMID: 26522905 [PubMed - in process]
Source: Physica Medica - November 1, 2015 Category: Physics Authors: Keser Z, Francisco GE Tags: Phys Med Rehabil Clin N Am Source Type: research

Poststroke Communication Disorders and Dysphagia.
Abstract Communication and swallowing disorders are common after stroke. Targeted surveillance followed by prompt evaluation and treatment is of paramount importance. The overall goals of rehabilitation for impaired swallowing and communication and swallowing deficits may differ based on the specific deficits caused by the stroke but the main goal is always to improve the patient's everyday interpersonal interactions and optimize participation in society. Fortunately, therapeutic or compensatory interventions can decrease the effects that communication and swallowing deficits have on the quality of life of stroke ...
Source: Physica Medica - November 1, 2015 Category: Physics Authors: González-Fernández M, Brodsky MB, Palmer JB Tags: Phys Med Rehabil Clin N Am Source Type: research

The Italian version of the Trunk Impairment Scale: development and psychometric properties.
CONCLUSIONS: This study supports the reliability and the validity of the TIS-I as measure of motor impairment of the trunk after stroke. CLINICAL REHABILITATION IMPACT: The TIS-I can be used in daily clinical practice and in research. PMID: 28382809 [PubMed - as supplied by publisher]
Source: Medical Physics - April 4, 2017 Category: Physics Authors: Lombardi B, Orioli A, Casavola D, Paci M Tags: Eur J Phys Rehabil Med Source Type: research

Energy harvesting with electromagnetic and piezoelectric seismic transducers: Unified theory and experimental validation
Publication date: 27 October 2018Source: Journal of Sound and Vibration, Volume 433Author(s): L. Dal Bo, P. GardonioAbstractThis paper presents a comparative simulation and experimental study on the principal features of time-harmonic vibration energy harvesting with electromagnetic and piezoelectric seismic transducers. The study is based on equivalent lumped parameter models and a consistent formulation of the constitutive electromechanical equations for the two transducers so that a unified energy formulation is derived for the two harvesters. The electromagnetic seismic transducer is formed by a moving ferromagnetic ri...
Source: Journal of Sound and Vibration - August 8, 2018 Category: Physics Source Type: research

Optimal Muscle Selection for OnabotulinumtoxinA Injections in Poststroke Lower-Limb Spasticity: A Randomized Trial.
CONCLUSIONS: Post hoc analyses suggested additional injections of onabotulinumtoxinA into toe flexors improved ankle Modified Ashworth Scale and Clinical Global Impression of Change scores versus mandatory muscles alone overall and with treatment initiation more than 24 mos after stroke. PMID: 31003229 [PubMed - in process]
Source: Health Physics - April 20, 2019 Category: Physics Authors: Esquenazi A, Wein TH, Ward AB, Geis C, Liu C, Dimitrova R Tags: Am J Phys Med Rehabil Source Type: research

Improving Spatiotemporal Gait Asymmetry Has Limited Functional Benefit for Individuals Poststroke.
CONCLUSIONS: Despite a targeted training approach and noted improvements in most measures, these changes did not appear to arise from improved spatiotemporal gait asymmetry. Furthermore, improvements in gait function observed in the laboratory setting did not appear to translate to increased community mobility.Video Abstract available for more insights from the authors (see the Video, Supplemental Digital Content 1, available at: http://links.lww.com/JNPT/A316). PMID: 32516300 [PubMed - in process]
Source: Health Physics - June 11, 2020 Category: Physics Authors: Ryan HP, Husted C, Lewek MD Tags: J Neurol Phys Ther Source Type: research

Cerebrovascular Disease Mortality after occupational Radiation Exposure among the UK National Registry for Radiation Workers Cohort
This study uses data from the UK National Registry for Radiation Workers cohort to assess the association between low-dose exposure to external radiation and cerebrovascular disease (CeVD) mortality. Poisson regression was used to estimate the Excess Relative Risk of CeVD mortality per Sievert (ERR/Sv) of radiation exposure. Estimates were obtained for all CeVD combined, ischemic stroke, hemorrhagic stroke and other/ill-defined CeVD. Results were adjusted for attained age, calendar period, sex, employer, industrial category and employment length. 166,812 nuclear workers (3,665,413 person-years) were included. By the end of...
Source: Radiation Research - February 9, 2022 Category: Physics Authors: Catherine A Hinksman Richard G E Haylock Michael Gillies Source Type: research

Physical activity from young adulthood to middle age and premature cardiovascular disease events: a 30-year population-based cohort study
CONCLUSIONS: Given recent trends in declining physical activity with age and associated premature CVD events, the transition from young adult to midlife is an important time period to promote physical activity.PMID:36127703 | DOI:10.1186/s12966-022-01357-2
Source: Health Physics - September 20, 2022 Category: Physics Authors: Jason M Nagata Eric Vittinghoff Kelley Pettee Gabriel Jamal S Rana Andrea K Garber Andrew E Moran Jared P Reis Cora E Lewis Stephen Sidney Kirsten Bibbins-Domingo Source Type: research

Maximal respiratory pressures: Measurements at functional residual capacity in individuals with different health conditions using a digital manometer
CONCLUSION: Although inspiratory and expiratory pressures at FRC were lower than measures obtained at RV/TLC for the five groups of health conditions, the mean differences between measurements at different lung volumes were similar among groups, which raises the discussion about the influence of the viscoelastic properties of the lungs on maximal respiratory pressure.PMID:37566990 | DOI:10.1016/j.bjpt.2023.100529
Source: Health Physics - August 11, 2023 Category: Physics Authors: Bruna M F Silveira Henrique R Martins Giane A Ribeiro-Samora Luciano F Oliveira Eliane V Mancuzo Marcelo Velloso Ver ônica F Parreira Source Type: research

An active contour model for medical image segmentation with application to brain CT image.
Conclusions: Their region-based active contour model has the ability to achieve accurate segmentation results in images with high noise level and intensity inhomogeneity. Therefore, their method has great potential in the segmentation of medical images and would be useful for developing CAD schemes for acute ischemic stroke in brain CT images. PMID: 23387759 [PubMed - in process]
Source: Medical Physics - February 1, 2013 Category: Physics Authors: Qian X, Wang J, Guo S, Li Q Tags: Med Phys Source Type: research

Inter-arm coordination and intra-cyclic variation of the hip velocity during front crawl resisted swimming.
Conclusion: These findings indicate that although resisted swimming cause an increase in the index of coordination and consequently it could be speculated a better propulsive continuity, the velocity fluctuations of the hip within a stroke cycle are not decreased, probably due to the inability of the swimmers to overcome effectively the concrete added resistances used in this study. Thus, at least concerning its acute effect, the hypothesis that the sprint resisted swimming could led to a technical improvement can not be satisfied. PMID: 24247185 [PubMed - in process]
Source: Medical Physics - November 23, 2013 Category: Physics Authors: Gourgoulis V, Aggeloussis N, Boli A, Michalopoulou M, Toubekis A, Kasimatis P, Vezos N, Mavridis G, Antoniou P, Mavrommatis G Tags: J Sports Med Phys Fitness Source Type: research