Results 181 to 190 of about 9,908,709 (236)

Factors Affecting Gross Efficiency in Cycling

International Journal of Sports Medicine, 2012
There is little standardization of how to measure cycling gross efficiency (GE). Therefore, the purposes of these studies were to evaluate the effect of: i) stage duration, ii) relative exercise intensity, iii) work capacity and iv) a prior maximal incremental test on GE. Trained subjects (n=28) performed incremental tests with stage durations of 1-, 3-
Koning, Jos J., Noordhof, D. A., Lucía Mulas, Alejandro, Foster, Carl   +3 more
openaire   +4 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
openaire   +3 more sources

Effect of Gradient on Cycling Gross Efficiency and Technique

Medicine & Science in Sports & Exercise, 2013
The purpose of this study was to determine the effect of gradient on cycling gross efficiency and pedaling technique.Eighteen trained cyclists were tested for efficiency, index of pedal force effectiveness (IFE), distribution of power production during the pedal revolution (dead center size [DC]), and timing and level of muscle activity of eight leg ...
Marco, Arkesteijn, Simon A, Jobson, James, Hopker, Louis, Passfield   +3 more
openaire   +3 more sources

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   +4 more sources

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
openaire   +3 more sources

Performance of a two-leaf light use efficiency model for mapping gross primary productivity against remotely sensed sun-induced chlorophyll fluorescence data

Science of the Total Environment, 2018
Yongguang Zhang, Weimin Ju, Yibo Liu
exaly   +2 more sources

Improving smallholder farmers’ gross margins and labor-use efficiency across a range of cropping systems in the Eastern Gangetic Plains

, 2021
The Eastern Gangetic Plains of South Asia is a region of high rural poverty and low agronomic productivity, with crops grown using traditional management practices which are labor-intensive and uneconomical.
M. Gathala, A. Laing, T. P. Tiwari, J. Timsina, F. Rola-Rubzen, S. Islam, Sofina Maharjan, P. Brown, K. K. Das, K. Pradhan, A. Chowdhury, Ranvir Kumar, Ram Datt, M. Anwar, S. Hossain, U. Kumar, S. Adhikari, D. Magar, B. Sapkota, H. Shrestha, R. Islam, M. Rashid, I. Hossain, A. Hossain, B. Brown, B. Gérard   +25 more
semanticscholar   +1 more source

The effect of torsional shoe sole stiffness on knee moment and gross efficiency in cycling

Jurnal sport science, 2019
Altering torsional stiffness of cycling shoe soles may be a novel approach to reducing knee joint moments and overuse injuries during cycling. We set out to determine if the magnitude of three-dimensional knee moments were different between cycling shoe ...
J. Fletcher, M. Asmussen, S. Nigg, B. MacIntosh, B. Nigg   +4 more
semanticscholar   +1 more source

Seasonal changes in gross efficiency and aerobic capacity in well-trained road cyclists

Isokinetics and exercise science, 2019
BACKGROUND: The purpose of this study was to evaluate changes to key aerobic performance determinants, namely maximal oxygen uptake (VO 2max ), lactate threshold (LT) and gross efficiency (GE) over the cycling season.
Kamila Płoszczyca, Jakub Foltyn, Jakub Goliniewski, Janusz Krȩżelok, S. Poprzȩcki, M. Ozimek, Miłosz Czuba   +6 more
semanticscholar   +1 more source

Gross Efficiency during Rowing Is Not Affected by Stroke Rate

Medicine & Science in Sports & Exercise, 2009
It has been suggested that the optimal stroke rate in rowing is partly determined by the stroke-rate dependence of internal power losses. This should be reflected in a stroke-rate dependency of gross efficiency (e(gross)). The purpose of this study was to investigate if e(gross) is affected by stroke rate. A second aim was to determine whether internal
Hofmijster, M.J., van Soest, A.J., de Koning, J.J.   +2 more
openaire   +3 more sources