508 research outputs found
The application of whole-body vibration in physiotherapy – A narrative review
Whole-body vibration (WBV) training is a very popular kind of practice in sport, fitness and physiotherapy. This work reviews the current knowledge regarding the use and effectiveness of WBV in the physiotherapy. The discrepancies between different authors’ results are probably due to divergence in WBV training protocols. The paperwork clearly showed that despite its ultimate effects, exercises on a vibration platform are safe, feasible, and well tolerated by patients with different disorders. This narrative review should help physiotherapists verify therapy programs regarding patients’ exposure to WBV
The influence of prenatal exposure to tobacco smoke on neonatal body proportions
The objective of this study was to determine neonatal anthropometric indices such as: birth weight, crown-heel
length, head and chest circumference and ponderal index
,
in relation to the maternal smoker status (active and
passive smoking). The study included 147 neonates born in 2003-2004 at the Princess Anna Mazowiecka University
Hospital in Warsaw admitted to the Neonatal and Intensive Care Department of Warsaw Medical University. Neonates
were assigned to one of three groups: babies of mothers who were active smokers, passive smokers and non-smokers
based on a questionnaire concerning exposure to tobacco smoke and on the concentration of cotinine in maternal
urine. The babies of mothers who were active smokers were born with lower birth weight (p=0.033), lower crown-heel
length (p=0.026), lower head circumference (p=0.002) and lower chest circumference (p=0.021) significantly more
often than babies of non-smoker mothers. Babies whose mothers were active smokers had an increased risk of
lower head circumference or 3, 9 (1, 4-10, 7, CI 95%), and an increased risk of lower chest circumference OR 4, 0 (1,
5-10, 9, CI 95%). The babies of mothers who were passive smokers also had lower anthropometric indices, but the
differences were not statistically significant. No effect on ponderal index was observed among the neonates whose
mothers were active and passive smokers. Smoking during pregnancy causes symmetrical restriction of intrauterine
growth
The impact of intrauterine tobacco exposure on the cerebral mass of the neonate based on the measurement of head circumference
The objective of the study was to assess cerebral mass, based on head circumfer-
ence measurements in neonates exposed to tobacco smoke in utero, and to deter-
mine the relative proportions of the cerebral and body mass. The study included
147 neonates born in the period 2003–2004 at the Princess Anna Mazowiecka University Hospita land admitted to the Neonatal and Intensive Care Department of the Medical University in Warsaw. Subjects were divided into three groups on the basis of maternal status as active, passive, or nonsmokers determined by materna lurinary cotinine concentration and a questionnaire. Neonates whose mothers were active smokers throughout the whole period of pregnancy had a lower head circumference and in consequence a lower cerebral mass significantly more frequently when compared with those whose mothers were nonsmokers, P=0.002. (Median difference in cerebral mass was 48.27 g.) The risk of lower cerebral mass was 3.9 (1.4–10.8, CI 95%) in the group of neonates whose mothers actively smoked cigarettes during pregnancy. A negative correlation was seen between cerebral mass and maternal urinary cotinine concentration (correlation coefficient r=−23, P=0.006). The ratio of the cerebral to body mass was similar for neonates in all three groups. Active smoking during pregnancy had a negative effect on the cerebral mass of theneonate, however no such effect was observed in neonates whose mothers were passive smokers. The deficiency in cerebral mass increased with greater smoking intensity. Active smoking by the mother during pregnancy inhibits the growth of the brain as well as that of the body mass of the neonate
Spin polarization of exciton-polariton condensate in a photonic synthetic effective magnetic field
We investigate the spin polarization of localized exciton-polariton
condensates. We demonstrate the presence of an effective magnetic field leading
to the formation of elliptically polarized condensates. We show that this
synthetic field has an entirely photonic origin, which we believe is unique for
the CdTe-based microcavities. Moreover, the degree of spin polarization of
localized polariton condensates in samples with magnetic ions depends on the
excitation power or polarization of the non-resonant excitation laser. In an
external magnetic field, the semimagnetic condensate spontaneously builds up
strong spin polarization. Based on the magnetic field behavior of the
condensate in the presence of magnetic ions, we apply a model that allows us to
estimate the polariton-polariton interaction strength in a CdTe-system to
approx. 0.8
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