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Showing 1 to 20 of 21 for “"ventilatory threshold"”.
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Prediction of triathon performance from ventilatory threshold measurements
… cycle, 26.2 mile run) performance times from ventilatory threshold (TVENT) measurements of swimming, cycling, and running. Ten trained triathletes (mean age = 29.7yrs., ht = 179.8cm, wt = 76.8kg, bodyfat = 11.4%) performed progressive intensity tests for treadmill running, cycle ergometry, and …
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The Ventilatory Threshold and Maximal Steady-State Exercise in Patients with Coronary Artery Disease
BACKGROUND: Previous research has shown that the ventilatory threshold (VT) correlates highly with onset of lactate accumulation and maximal steady-state exercise (MSS) level. Also, studies have shown the VT is useful in prescribing exercise for cardiac patients in that it gives an exercise …
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Ventilatory threshold and peak VO2 responses in prepubescent children following a high intensity training program
… V02. The main finding from this study was that, ventilatory threshold may be a more sensitive indicator of change in training responses for children.
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TRAINING COMPARISON: 95%VO2PEAK vs. RACE PACE INTERVALS
… of VO2max, heart rate max, or lactate threshold. Interval training based on current race pace has not been evaluated. PURPOSE: This study examined intervals at 95% VO2peak compared to race pace intervals on VO2peak, ventilatory threshold, time trial performance, peak power output, and …
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TRAINING COMPARISON: 95%VO2PEAK vs. RACE PACE INTERVALS
… of VO2max, heart rate max, or lactate threshold. Interval training based on current race pace has not been evaluated. PURPOSE: This study examined intervals at 95% VO2peak compared to race pace intervals on VO2peak, ventilatory threshold, time trial performance, peak power output, and …
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Variability of substrate utilization during exercise relative to VO2vt and VO2max
… this study was to determine to the stability of ventilatory threshold (VT) as a set point for prescription of exercise intensity. METHODS: Fifty-eight healthy adults (males n = 28, females n = 30) performed VO2max and steady state testing. The VO2max test used a treadmill ramp protocol to …
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Variability of substrate utilization during exercise relative to VO2vt and VO2max
… this study was to determine to the stability of ventilatory threshold (VT) as a set point for prescription of exercise intensity. METHODS: Fifty-eight healthy adults (males n = 28, females n = 30) performed VO2max and steady state testing. The VO2max test used a treadmill ramp protocol to …
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Effect of differing intensities of exercise on affect and enjoyment
… exercised at two different intensities [below ventilatory threshold (bVT), above ventilatory threshold (aVT)]. Heart rate (HR; Polar monitor) was assessed throughout each condition; affect was assessed pre-, immediately post-, 10-min post-, and 20-min post-exercise; enjoyment (PACES) was …
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Dilution acidosis : the effects of hyperosmolality on acid-base balance and ventilation
… acid-base disturbance and the implications for ventilatory control. 31P nuclear magnetic resonance spectroscopy (31P NMR) on duck pectoral muscle showed that the dilution acidosis caused by acute hyperosmolality was accompanied by an intracellular contraction alkalosis, implying the uncoupling …
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Effects of cycling pedal rate on running kinematics and neuromuscular timing in triathletes
… 100 rpm) at a workload below the individual's ventilatory threshold. Subjects rapidly moved to the treadmill for a 40-minute post-cycle run. Right sagittal lower extremity kinematic data (60 Hz video) were obtained during the first two minutes of each run and used to quantify stride length and …
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A Dose -Response Investigation of Patterns and Correlates of Affective Responses to Acute Exercise: The Dual -Mode Hypothesis
… intensity were determined in relation to the ventilatory threshold (VT), and (c) data analysis included an examination of responses at the level of individuals. Thirty healthy volunteers ran on a treadmill for 15 min at an intensity that was 20% lower than (""moderate""), similar to …
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Functional electrical stimulation (FES) leg cycling exercise in paraplegia: a pilot study for the definition and assessment of exercise testing protocols and efficacy of exercise
… protocols. Moreover, the first report of a ventilatory threshold in SCI subjects during FES-cycling has been provided here. Oxygen uptake and stimulation cost measurements both allow discrimination between the efficacy of different muscle activation patterns. However, stimulation cost is …
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Effects of an acute bout of aerobic exercise on cognition and academic performance in college-aged individuals with differing trait anxiety levels
… minutes of aerobic treadmill exercise, 20% below Ventilatory Threshold. Measures of state anxiety, academic achievement, and inhibition were assessed at multiple time points afterward. Results: Reductions in SA were seen in high-trait anxious individuals for both conditions. High-trait anxious …
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Reliability and circadian rhythmicity of blood lactate
… output increased 20-45 W every 3 minutes until ventilatory threshold (VT) and every minute until the criterion endpoint was reached (CEP). Criterion endpoint was determined to be 20-45 W below the power output at which peak VO₂ was reached. All of the cardiorespiratory variables and Tc were …
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Peripheral blood flow changes in response to post-exercise cold water immersion
… of cycling at a power output equivalent to first ventilatory threshold, followed by high-intensity intermittent cycling (30 s at 90% of peak power output to 30 s at 70 W). Measurement of blood flow in thigh skin (laser Doppler flowmetry), vastus lateralis muscle (near infrared spectroscopy), and …
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Variability in the Affective Exercise Experience of Low-active Women: Exploring the Role of Cognitive Appraisal During Exercise
… post-exercise, a mean decline began before the ventilatory threshold (VT) was reached (i. e., during `moderate' intensity exercise). Study three manipulated twenty-four low-active female participants' perceptions of exercise duration to test the influence of cognitive appraisal of the task upon …
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Individual differences in affect and vagal tone in response to moderate- and high-intensity interval exercise: A preliminary model
… peak heart rate, and oxygen consumption at ventilatory threshold (VT) were determined. Based on individual workload at VT, a relative high- (5% below relative load at VT) and moderate-intensity (25% below relative load at VT) load was determined for sessions 3 and 4. Participants then …
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The measurement of oxygen uptake kinetics in children
… adult males (P<0.01) and children (P<0.001). Ventilatory threshold (% V02 MAX) was not different between groups. Delta efficiency was significantly lower in children than adult males (P<0.05) and adult females (P<0.01). These results support the contention that there are maturational …
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Evaluation of dry-land ergometry in assessment of cardiopulmonary and metabolic responses to arm and leg exercise in swimmers.
… included measurements of oxygen uptake (V02), ventilatory threshold (VT) and total exercise time (TEn during an incremental arm-pulling and leg-kicking exercise test. The results showed that arm training improved 200ARMS(184 ± 10.0 s versus 164 ± 6.0 s) and DPP (+10 ± 3%) in the ARMS and leg …
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