Cycling at Altitude: Lower Absolute Power Output as the Main Cause of Lower Gross Efficiency
نویسندگان
چکیده
منابع مشابه
Is gross efficiency lower at acute simulated altitude than at sea level?
PURPOSE The purpose of this study was to test the assumption that gross efficiency (GE) at sea level (SL) is representative of GE at altitude (AL). It was hypothesized that an increased cost of ventilation and heart rate, combined with a higher respiratory-exchange ratio, at AL might result in a decrease in GE. METHODS Trained men (N = 16) completed 2 maximal incremental tests and 2 GE tests,...
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PURPOSE The purpose of this study was to quantify the effects of moderate-high altitude on power output, cadence, speed and heart rate during a multi-day cycling tour. METHODS Power output, heart rate, speed and cadence were collected from elite male road cyclists during maximal efforts of 5, 15, 30, 60, 240 and 600 s. The efforts were completed in a laboratory power-profile assessment, and s...
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Preferred cycling cadence (85-95 rpm) is substantially higher than the cadence that minimizes energy expenditure (50-60 rpm) (Coast and Welch, 1985; Marsh and Martin, 1993, 1997; Pugh, 1974; Seabury et al., 1977). This difference between preferred and most economical cadences suggests the selection of preferred cadence in cycling is dominated by factors others than energy cost or aerobic demand...
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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-, and 6-min to establish the effect of sta...
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Gross-dependent lower limb lymphoedema is an unusual condition which can be painful particularly if ulceration occurs. Focused history and clinical examination in addition to appropriate radiological investigation aid in the diagnosis. It is difficult to treat and requires a multidisciplinary team including vascular surgeons, dermatologists and clinical nurse specialists. The primary treatment ...
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ژورنال
عنوان ژورنال: International Journal of Sports Physiology and Performance
سال: 2019
ISSN: 1555-0265,1555-0273
DOI: 10.1123/ijspp.2018-0221