Modeling trajectories of perceived leg exertion during maximal cycle ergometer exercise in children and adolescents

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Modeling trajectories of perceived leg exertion during maximal cycle ergometer exercise in children and adolescents

BACKGROUND Borg developed scales for rating pain and perceived exertion in adults that have also been used in pediatric populations. Models describing functional relationships between perceived exertion and work capacity have not been studied in children. We compared different models and their fits to individual trajectories and assessed the variability in these trajectories. METHODS Ratings ...

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Effect of naloxone on perceived exertion and exercise capacity during maximal cycle ergometry.

We assessed the effects of naloxone, an opioid antagonist, on exercise capacity in 13 men and 5 women (mean age = 30.1 yr, range = 21-35 yr) during a 25 W/min incremental cycle ergometer test to exhaustion on different days during familiarization trial and then after 30 mg (iv bolus) of naloxone or placebo (Pl) in a double-blind, crossover design. Minute ventilation (Ve), O(2) consumption (Vo(2...

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Brain stimulation modulates the autonomic nervous system, rating of perceived exertion and performance during maximal exercise.

BACKGROUND The temporal and insular cortex (TC, IC) have been associated with autonomic nervous system (ANS) control and the awareness of emotional feelings from the body. Evidence shows that the ANS and rating of perceived exertion (RPE) regulate exercise performance. Non-invasive brain stimulation can modulate the cortical area directly beneath the electrode related to ANS and RPE, but it cou...

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Relationship between perceived exertion during exercise and subsequent recovery measurements

The return towards resting homeostasis in the post-exercise period has the potential to represent the internal training load of the preceding exercise bout. However, the relative potential of metabolic and autonomic recovery measurements in this role has not previously been established. Therefore the aim of this study was to investigate which of 4 recovery measurements was most closely associat...

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Reliability of ratings of perceived exertion during progressive treadmill exercise.

OBJECTIVE To assess the test-retest reliability (repeatability) of Borg's 6-20 rating of perceived exertion (RPE) scale using a more appropriate statistical technique than has been employed in previous investigations. The RPE scale is used widely in exercise science and sports medicine to monitor and/or prescribe levels of exercise intensity. The "95% limits of agreement" technique has recently...

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ژورنال

عنوان ژورنال: BMC Medical Research Methodology

سال: 2014

ISSN: 1471-2288

DOI: 10.1186/1471-2288-14-4