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1.
Rev Med Inst Mex Seguro Soc ; 46(2): 119-28, 2008.
Article in Spanish | MEDLINE | ID: mdl-19133181

ABSTRACT

BACKGROUND: it has been demonstrated an association between the increase in physical activity and improvements in the lipid profile. OBJECTIVE: to evaluate changes in the serum lipids caused by spinning practice. METHODS: nine men and twelve women were studied, they underwent to an initial evaluation that included a treadmill effort test, in order to establish the physical fitness level. With the purpose of determine the lipids change, a blood sample was obtained before and after a typical spinning session. The design was prospective, experimental, longitudinal and comparative study. Student's t-test and regression model were used to determine the changes in the lipids concentrations, and its relation with the physical fitness level. A p value < or = 0.05 was required for statistical significance. RESULTS: lipids increase concentrations were observed (p < 0.05), except at triglycerides in men, in which it had a decrease. It was statistically significant relation between the physical fitness level and the percentage of high-density lipoproteins variation (r = 0.44, p = 0.046). CONCLUSIONS: the percentage of high-density lipoproteins variation was greater when the values of VO(2)max were higher. At greater level of medical fitness greater positive answer in this lipoproteins. In the case of the rest serum lipids, it was not observed relation between the level of medical fitness and the percentage of variation due to the execution of the spinning session.


Subject(s)
Cholesterol/blood , Physical Fitness , Adult , Exercise , Exercise Test , Female , Humans , Male , Prospective Studies , Triglycerides/metabolism
2.
Enferm. Infecc. microbiol ; 13(3): 123-7, mayo-jun. 1993. tab
Article in Spanish | LILACS | ID: lil-135013

ABSTRACT

Algunas cepas de estafilococo han desarrollado resistencia a la meticilina (ERM) y a antibióticos congéneres; este es un fenómeno común en Europa y Estados Unidos. Para su detección se requieren procedimientos especiales en el laboratorio, pues generalmente escapa a la identificación por los métodos comunes. Este estudio prospectivo se efectuó para determinar la proporción de cepas de estafilococo resistentes a meticilina y algunos otros antibióticos en el Hospita General Regional de León, Guanajuato. Se utilizó el procedimiento de dilución en caldo suplementado con sodio y cationes en cepas aisladas de muestras clínicas, durante el periodo comprendido entre agosto de 1990 y febrero de 1992. Se estudiaron 61 cepas de Staphylococcus aureus y 22 de estafilococo coagulasa-negativo; se encontró una resistencia global a la meticilina de 24.1 por ciento, aunque la cifra fue marcadamente diferente para las primeras (13.1 por ciento). que para las segundas (54.6 por ciento). No se encontraron cepas resistentes a la vancomicina. Considerando aisladamente las cepas de ERM, se encontraron como alternativas terapéuticas la vancomicina, rifampicina, ciprofloxacina y el trimetoprim con sulfametoxazol, ya que en todos los caos las sensibilidad fue superior a 85 por ciento. El resto de antibióticos probados (aminoglucósidos, eritromicina, tetraciclina, clorafenicol y cefalosporinas) no se consideraron buenas alternativas terapéuticas debido a los bajos índices de sensibilidad. Se comenta la necesidad de conocer mejor el fenómeno de resistencia a meticilina en hospitales mexicanos


Subject(s)
Methicillin Resistance , Staphylococcus/drug effects , Cross Infection/microbiology , Staphylococcus/isolation & purification
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