Results 261 to 270 of about 125,919 (301)

Recovery of Cycling Gross Efficiency After Time-Trial Exercise

International Journal of Sports Physiology and Performance, 2018
Background: Research has shown that gross efficiency (GE) declines during high-intensity exercise, but the time course of recovery of GE after high-intensity exercise has not yet been investigated. Purpose: To determine the time course of the recovery of GE after time trials (TTs) of different lengths.
Groot, Sjors, Van De Westelaken, Lars H.J., Noordhof, Dionne A., Levels, Koen, De Koning, Jos J.   +4 more
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Determining the Gross Efficiency of a Boiler in Real Time

Power Technology and Engineering, 2014
Atechnique for the continuous automatic determination of the gross efficiency of a boiler from the readings of regular process-control instruments was developed and implemented at a CHPP. The possibility of saving fuel by controlling the efficiency of the boiler in real time is discussed.
A. V. Pyatalov, I. V. Malyshev, S. A. Shevtsov, N. G. Yakovlev   +3 more
openaire   +1 more source

An Approach to Estimating Gross Efficiency During High-Intensity Exercise

International Journal of Sports Physiology and Performance, 2013
Purpose:Gross efficiency (GE) is coupling power production to propulsion and is an important performance-determining factor in endurance sports. Measuring GE normally requires measuring VO2 during submaximal exercise. In this study a method is proposed to estimating GE during high-intensity exercise.Methods:Nineteen subjects completed a maximal ...
de Koning, J.J., Noordhof, D.A., Uitslag, T.P., Gillart, R.E., Dodge, C., Foster, C.   +5 more
openaire   +3 more sources

Gross Mechanical Efficiency Of Trained Wheelchair Racers

[1990] Proceedings of the Twelfth Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2005
This paper presents the results of a study of gross mechanical efficiency of racing wheelchair propulsion. Our subjects displayed maximum gross mechanical efficiencies over 30%. Typically trained runners show efficiencies of approximately 25%. Our results may help to explain why trained wheelchair racers are faster than runners.
R.A. Cooper, J.F. Bedi
openaire   +1 more source

Load and Velocity of Contraction Influence Gross and Delta Mechanical Efficiency

International Journal of Sports Medicine, 1992
The effects of three different cadences and five different work rates on Gross (GE) and Delta Efficiency (DE) during cycle ergometry were studied. Fifteen well-trained cyclists exercised for 30 minutes at 60, 80, or 100 RPM on three different occasions. On each occasion, the load was increased every five minutes and corresponded to approximately 50, 60,
L S, Sidossis, J F, Horowitz, E F, Coyle
openaire   +2 more sources

Gross Efficiency During Flat and Uphill Cycling in Field Conditions

International Journal of Sports Physiology and Performance, 2015
Purpose: While a number of studies have investigated gross efficiency (GE) in laboratory conditions, few studies have analyzed it in field conditions. Therefore, the aim of this study was to analyze the effect of gradient and cadence on GE in field conditions.
Alfred, Nimmerichter, Bernhard, Prinz, Kevin, Haselsberger, Nina, Novak, Dieter, Simon, James G, Hopker   +5 more
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Effects of frequency on gross efficiency and performance in roller ski skating

Scandinavian Journal of Medicine & Science in Sports, 2011
The purpose of the present study was to examine the effect of frequency on efficiency and performance during G3 roller ski skating. Eight well‐trained male cross‐country skiers performed three submaximal 5‐min speeds (10, 13, and 16 km/h) and a time‐to‐exhaustion (TTE) performance (at 20 km/h) using the G3 skating technique using freely chosen, high ...
S, Leirdal, O, Sandbakk, G, Ettema
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The Reliability and Adaptive Responses of Gross Efficiency in Hot Ambient Conditions

International Journal of Sports Medicine, 2014
This study evaluated the reliability and adaptive responses of cycling gross efficiency (GE) performed at different intensities, across 3 trials in simulated hot (~30°C) temperatures. Twelve cyclists performed 3 hot (30±0.7ºC and RH of 50±2.9%) GE sessions, comprising 3 sub-maximal work rates of 150 W, 200 W and 250 W (5-min each), separated by 24-h ...
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Effect of Duration and Exogenous Carbohydrate on Gross EfficiencyDuring Cycling

The Journal of Strength and Conditioning Research, 2007
The purpose of this investigation was to determine the effects of 2.5 hours of cycling with and without carbohydrate supplementation on gross efficiency (GE). Trained cyclists (N = 15) were tested for V(.-)O2max (53.6 + 2.2 ml x kg(-1) x min(-1)) and lactate threshold during incremental tests to exhaustion.
Charles L, Dumke, Jeffrey M, McBride, David C, Nieman, William D, Gowin, Alan C, Utter, Steven R, McAnulty   +5 more
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The probability of a ?gross? violation of an efficient markets variance inequality

Empirical Economics, 1995
This note considers the small sample bias of the empirical variances of observed and ex-post-rational prices of financial assets, and shows that this can be much more severe than has previously been thought.
openaire   +1 more source