In 50 patients with chronic bronchitis the relation was assessed between exercise tolerance and pulmonary function and psychological factors, including subjective perception of exertion, mood, general psychiatric disturbance, and the attitudes and beliefs held by patients concerning themselves, their illness, and its treatment. Ventilatory capacity was significantly correlated with but a poor p...

D yspnoea and reduced exercise tolerance are the hallmarks of chronic obstructive pulmonary disease (COPD). In the advanced phases of the disease the ability to exercise is mainly limited by the combination of a reduced ventilatory capacity, increased ventilatory requirement and lung dynamic hyperinflation. Importantly, the aforementioned respiratory mehanical abnormalities are well recognised ...

BACKGROUND In patients with normal LV systolic function, cardiac output increases with exercise mediated by increased stroke volume early in exercise and an increase in heart rate later in exercise. Despite normal LV systolic function, patients who display an impaired relaxation pattern may have a reduced exercise tolerance. We hypothesized that the resting impaired relaxation pattern that pers...

BACKGROUND This study investigated the effects of a prior individualized training program (TP) on the response to acute oxygen supply during exercise in chronic obstructive pulmonary disease (COPD) patients showing exercise-induced desaturation. METHODS Twenty-two COPD patients (mean [SD] FEV1 = 52.1 [3]% predicted) who desaturated on exercise participated in a TP. Exercise tolerance while br...

Pulmonary rehabilitation is a comprehensive therapeutic intervention with proven efficacy in relieving symptoms and increasing exercise tolerance in patients with chronic respiratory diseases.One of the main components of a pulmonary rehabilitation program is lower limbs exercise training. There are several ways of establishing the optimal intensity of the exercise training, using the target he...

We examined whether exercise testing with measurement of cardiac output during maximal exercise can provide additional prognostic information for medically treated patients in whom left ventricular function and extent of coronary artery disease are known. We followed 1034 patients with normal or mildly impaired left ventricular function; 410 of these patients (group 1) had single-vessel disease...

Due to the improvements in medical care, individuals with spinal cord injury (SCI) are now mirroring the nondisabled population in life expectancy and cause of death . In a study by Geisler and Jousse (1), renal (kidney) failure remained the leading cause of death, at 30.8 percent of the population with SCI studied . A 1983 study on the survival rates of individuals with SCI done by Geisler, sh...

The rising prevalence of physical inactivity is in all age groups (e.g., college students) a major public health issue as not meeting the recommended minimum amount regular activity linked to adverse events. Vice versa, there mounting evidence that achieving vital element prevent chronic diseases, but often an insufficient adherence planned and structured forms (i.e., exercises). In this contex...

The influence of an anabolic androgenic steroid (AAS) on thymidine and amino acid uptake in rat hindlimb skeletal muscles during 14 days after a single exhaustive bout of weight lifting was determined. Adult male rats were divided randomly into Control or Steroid groups. Nandrolone decanoate was administered to the Steroid group 1 wk before the exercise bout. [3H]thymidine and [14C]leucine labe...

BACKGROUND Cardiac transplantation (CTX) improves exercise tolerance, but CTX recipients still achieve only 50% to 70% of normal values for exercise capacity. Among the factors suggested to explain the reduced exercise tolerance in CTX recipients is deconditioning. Little is known about the relation between physical activity patterns and exercise test responses in CTX patients. METHODS Forty-...