The aim of this study was to compare the oxygen cost of running in boys with and without Developmental Coordination Disorder (DCD). Fourteen boys with DCD (9.1 ± 1.4 yr) and 16 typically developing (TD) controls (9.4 ± 1.3 yr) were tested on two separate occasions at least a week apart. On the first visit, motor proficiency, body composition and maximal aerobic capacity were established. On the...

[Purpose] We examined cardiorespiratory and metabolic changes across the 1st (G1), 2nd (G2) and 3rd (G3) trimesters in pregnant women. [Subjects and Methods] Forty-two healthy, active, non-smoking, pregnant women participated in this study. They were divided into G1, G2 and G3 groups depending on their mean gestational ages at the time of testing which were 10.5 ±2.9, 19.2 ±3.4, and 33.3 ±2.4 w...

We conducted a longitudinal study to examine changes in the respiratory exchange ratio (RER) during progressively increasing body exertion in children and adolescents of female sex. In this analysis we only included 23 examinees for which we had all yearly measurements from examinee's age 9 years until 18 years of age. The data were analyzed according to the chronological and biological age. Ac...

UNLABELLED This study measured the effect of variable carbohydrate intake on time to exhaustion, variations in heart rate (HR), respiratory exchange ratio (RER), and rating of perceived exertion (RPE) in female endurance cyclists during an exercise trial. Subjects were 11 eumenorrheic women with maximal oxygen consumption (VO2max) 60.1 +/- 5.1 ml/kg who habitually cycled at least 100 miles per ...

Recent research has documented a positive relationship between real exchange rate (RER) levels and economic growth. The literature has interpreted this correlation as causality running from RER levels to growth rates; i.e., higher, undervalued, more competitive RERs tend to favor growth. Little effort has been made, however, on the analysis of the policy instruments required to implement a succ...

Background. Oxygen uptake efficiency slope (OUES) is a reproducible, objective marker of cardiopulmonary function. OUES is reported as being relatively independent of exercise intensity. Practical guidance and criteria for reporting OUES from submaximal tests has not been established. Objective. Evaluate the use of respiratory exchange ratio (RER) as a secondary criterion for reporting OUES. De...

objective: very recent studies have reported positive effects of dietary nitrate on the oxygen consumption during exercise. this research aimed to study the effect of moderate dose of high-nitrate vegetables, watercress (nasturtium officinale) and red radish (raphanus sativus) compared with a control group on the incremental treadmill exercise test following a standard bruce protocol controlled...

Abstract Introduction: The results of two spiroergometric measurements are presented that were taken from a spinal cord injured patient who participated in FES cycling training sessions for 11 months. Methods: 4 and months after starting the program. We investigated respiratory exchange ratio (RER) ventilation (VE/VO2, VE’/VCO2) ratios cadence sessions. Results: In first assessment, RER was bel...

The American College of Sports Medicine (ACSM) recommends that healthy adults achieve a minimum of thirty minutes of moderate intensity aerobic exercise five days per week. While cycling, walking, and jogging are commonly observed methods of achieving these recommendations, another option may be repetitive jumping. The purpose of this study was to examine the metabolic responses between repetit...

We examined the effects of (-)-Hydroxycitrate (HCA) ingestion on fat oxidation during moderate intensity exercise in untrained men. Six subjects ingested 500 mg of HCA or a placebo for 5 days and did endurance exercise. Blood FFA concentrations were significantly increased and respiratory exchange ratio (RER) decreased by HCA ingestion. These results suggested short-term HCA ingestion increases...