Medicine and science in sports and exercise
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Med Sci Sports Exerc · Jun 2003
Randomized Controlled Trial Clinical TrialIbuprofen and acetaminophen: effect on muscle inflammation after eccentric exercise.
We examined the influence of ibuprofen and acetaminophen on muscle neutrophil and macrophage concentrations after novel eccentric contractions. ⋯ Maximal over-the-counter doses of ibuprofen or acetaminophen, when administered therapeutically, do not affect muscle concentrations of neutrophils or macrophages 24 h after a novel bout of eccentric contractions.
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Med Sci Sports Exerc · Dec 2002
Comparative StudyClenbuterol diminishes aerobic performance in horses.
The purpose of this 8-wk study was to examine the effect of therapeutic levels of clenbuterol on aerobic performance and hemodynamics associated with exercise. ⋯ These data suggest that the combined effect of therapeutic levels of clenbuterol and training decrease aerobic performance and that the resultant reduction in plasma volume may affect improvements in cardiovascular function during recovery normally seen with exercise training.
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Med Sci Sports Exerc · Nov 2002
Comparative Study Clinical TrialAssessment of arterial gas pressures and cardiac output using a breathing lung model.
The aim of this investigation was to evaluate a breathing lung model to estimate arterial gas partial pressures and cardiac output at rest and during exercise. ⋯ Results obtained with the proposed method were in good agreement with measured arterial gas partial pressures. Despite a certain degree of bias, the promising results for cardiac output demonstrate the reliability of this method that should be now evaluated using a gold standard method.
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Med Sci Sports Exerc · Oct 2002
Relationship of physical activity to eating behaviors and weight loss in women.
To examine whether change in physical activity is associated with compliance to changes in dietary intake and eating behaviors in an 18-month behavioral weight loss program, and to examine the contribution of exercise to weight loss when these other weight loss behaviors are also considered. ⋯ The combination of changes in eating and physical activity behaviors can improve long-term weight loss compared with either behavior alone. Interventions targeting both behaviors are recommended for improving long-term weight loss.
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Med Sci Sports Exerc · Apr 2002
Modeling of end-tidal and arterial PCO2 gradient: comparison with experimental data.
The aim of this study was to test whether a tidally ventilated homogeneous lung model can correctly describe arterial and end-tidal gas partial pressures and thus the difference in end-tidal and arterial gas partial pressures at rest and during exercise. ⋯ The lung model described actual arterial CO2 partial pressures better than variations in end-tidal CO2 partial pressures and thus better than the gradient in end-tidal arterial CO2 partial pressures.