OBJECTIVE The objective of the study was to investigate the effect of strength and endurance training on muscle fiber membrane properties and discharge rates of low-threshold motor units of the vasti muscles during fatiguing contractions. METHODS Twenty-five sedentary healthy men (age (mean ± SD) = 26.3 ± 3.9 yr) were randomly assigned to one of three groups: strength training, endurance trai...

In sedentary individuals, H(1) receptors mediate the early portion of postexercise skeletal muscle hyperemia, whereas H(2) receptors mediate the later portion. It is not known whether postexercise hyperemia also presents in endurance-trained individuals. We hypothesized that the postexercise skeletal muscle hyperemia would also exist in endurance-trained individuals and that combined blockade o...

BACKGROUND Cough is a prevalent symptom that impacts quality of life in COPD. The aim of this study was to assess the relationship between cough-specific quality of life, abdominal muscle endurance, fatigue, and depression in stable patients with COPD. METHODS Twenty-eight patients with COPD (mean age 60.6±8.7 years) referred for pulmonary rehabilitation participated in this cross-sectional s...

GOLLNICK, P. D., R. B. ARMSTRONG, C. W. SAUBERT IV, K. PIEHL, AND B. SALTIN. Enzyme activity and Jiber composition in skeletal muscle of untrained and trained men. J. Appl. Physiol. 33(3): 3 12-3 19, 1972.-Succinate dehydrogenase (SDH) and phosphofructokinase (PFK) activities and the histochemical identification of fiber types and localization of oxidative activity were determined on biopsy sam...

▼ The aim of the present study was to investigate the eff ects of concurrent strength and endurance training on neuromuscular and hormonal parameters in elderly men. 23 healthy men (65 ± 4 years) were randomly assigned to 1 of 3 groups: concurrent (CG, n = 8), strength (SG, n = 8) or endurance group (EG, n = 7). The programs consisted, of strength training, endurance training on a cycle ergomet...

The present article reviews the physiological and performance effects of speed endurance training consisting of exercise bouts at near maximal intensities in already trained subjects. Despite a reduction in training volume, speed endurance training of endurance-trained athletes can maintain the oxidative capacity and improve intense short-duration/repeated high-intensity exercise performance la...

The use of noninvasive techniques to measure respiratory muscle performance after different types of endurance exercise has not been entirely successful, as the results have not consistently indicated diminished performance for similar types of exercise. The aim of the present study was 1) to compare different, noninvasive methods to assess respiratory muscle performance before and after an exh...

There are several marked adaptations associated with the regular performance of endurance training. Aerobic endurance training produces increases in VO2 max (13, 7, 8), but has no hypertrophy effect on muscle (6). Muscle fibre size has actually been shown to decrease (15, 11). Capillary supply to the muscles has been shown to change in response to endurance training through an increase in the c...

BACKGROUND Aging compromises the ability of the central nervous system to maintain body balance and reduces the capacity for adaptive reactions. To prevent falls, the reception conditions for sensory information need to be improved. OBJECTIVES To evaluate the impact of a structured aquatic and a non-aquatic exercise program for lower-limb muscle endurance on the static and dynamic balance of ...

The effects of endurance training on exercise capacity and health-related quality of life (HRQL) in chronic obstructive pulmonary disease (COPD) patients have been studied thoroughly, while resistance training has been rarely evaluated. This study investigated the effects of resistance training in comparison with endurance training in patients with moderate to severe COPD and peripheral muscle ...