Cycling Performance

Goss-Sampson, M., Robbins, D., Matharoo, J., Filingeri, D. (2011). The Effects of powerBIKETM on Cyclical Muscle Activation Patterns. The British Association of Sport and Exercise Sciences (BASES) Annual Conference, 6-8th Sept, 2011, University of Essex, UK.

by Davide Filingeri

Goss-Sampson, M., Robbins, D., Matharoo, J., Filingeri, D. (2011). The Effects of powerBIKETM on Cyclical Muscle Activation Patterns. The British Association of Sport and Exercise Sciences (BASES) Annual Conference, 6-8th Sept, 2011, University of Essex, UK.

by Davide Filingeri

The effects of training on gross efficiency in cycling: a review

by Louis Passfield

Influence of body position when considering the ecological validity of laboratory time-trial cycling performance

by Louis Passfield

The Endurance Athlete Plate

by Levi Bloom

Much like "MyPlate" from the USDA, this is a nutrition guide (in plate form) for endurance athletes, specifically cyclists.

Even Between-Lap Pacing Despite High Within-Lap Variation During Mountain Biking

by Rachel Wright

Authors: Louise Martin, Anneliese Lambeth-Mansell, Liane Beretta-Azevedo, Lucy A. Holmes, Rachel Wright and Alan St Clair Gibson

International Journal of Sports Physiology & Performance (in press)

My Life as a Two‐Wheeled Philosopher

by Heather Reid

in the book Cycling and Philosophy

Cycling was the medium through which I learned about myself and pursued lofty ideals. It was my path toward wisdom and... more Cycling was the medium through which I learned about myself and pursued lofty ideals. It was my path toward wisdom and excellence. It was a lived philosophy. And now that I am a professor of philosophy, immersed in books and lectures and conferences, I still ride my bike in the pursuit of wisdom. The difference is that now I understand that cycling for me is philosophy, back then I only knew that I could be satisfied even in defeat. Now I know enough to tell the story of my cycling career with the perspective of a professor of philosophy.

The" Time-Saving" Hypothesis in Cycling: Cross-Validation and Prediction of Practical Impact

by Louis Passfield

Variable versus constant power strategies during cycling time-trials: prediction of time savings using an up-to-date mathematical model

by Louis Passfield

Cycling efficiency in trained male and female competitive cyclists

by Louis Passfield

The effect of training volume and intensity on competitive cyclists efficiency

by Louis Passfield

The analysis and utilization of cycling training data

by Louis Passfield

Changes in cycling efficiency during a competitive season

by Louis Passfield

Science and cycling: current knowledge and future directions for research

by Louis Passfield

Gross efficiency, maximal muscle function and cycling endurance exercise

by Louis Passfield

The Reliability of Cycling Gross Efficiency Using the Douglas Bag Method

by Louis Passfield

James Hopker

urpose: The aim of this study was to establish the reliability of gross efficiency (GE) measurement [the ratio of... more urpose: The aim of this study was to establish the reliability of gross efficiency (GE) measurement [the ratio of mechanical power input to metabolic power output, expressed as a percentage] using the Douglas bag method.

Methods: The experiment was conducted in two parts. Part 1 examined the potential for errors in the Douglas bag method arising from gas concentration analysis, bag residual volume, and bag leakage or gas diffusion rates. Part 2 of this study examined the within subject day-to-day variability of GE in 10 trained male cyclists using the Douglas bag method. Participants completed three measurements of GE on separate days at work rates of 150, 180, 210, 240, 270 and 300W.

Results: The results demonstrate that the reliability of gas sampling is high with a coefficient of variation (CV) <0.5% for both O2 and CO2. The bag residual volume CV was ~15%, which amounts to + 0.4L. This could cause the largest error but these can be minimised by collecting large gas sample volumes. For Part 2 a mean CV of 1.5% with limits of agreement (LOA) + 0.6% in GE units, around a mean GE of 20.0% was found.

Conclusions: The Douglas bag method of measuring expired gases and GE was found to have very high reliability and could be considered the gold standard approach for evaluating changes in GE. Collecting larger expired gas samples minimizes potential sources of error.

Effect of starting cadence on sprint-performance indices in friction-loaded cycle ergometry

by Rachel Wright

published in "International Journal of Sports Physiology & Performance, 2007

Using GIS to assess the equitable distribution of traffic calming measures: translational research

by Sarah Rodgers

Objective To assess whether traffic-calming features are
equitably distributed in the UK.

Design... more Objective To assess whether traffic-calming features are
equitably distributed in the UK.

Design Cross-sectional database utilising geographical
information system (GIS) and population data.
Setting Four large regions in England and Wales,
including areas in south Wales, south-west England, east
Midlands and Surrey, for which map data were available.
Main outcome measures The total proportion of road
segments traffic calmed and the likelihood of road
segments being traffic calmed by deprivation fifth.

Results A total of 3.7% of road segments was traffic
calmed on 95 791 km of road length. A higher proportion
of traffic-calmed road segments was found in deprived
areas when population density was taken into account.
The odds of traffic calming in the most deprived areas,
compared with the most affluent areas, was 2.83 (95% CI
2.815 to 2.835).

Conclusions High resolution map data can be
manipulated within a GIS to enable the distribution of
traffic-calming measures to be assessed over large
areas. There are very few traffic-calmed roads in any
area and there is scope for more. Deprived areas have
substantially more traffic calming. Making such data
available to the public should be tested as an advocacy
tool to increase the provision of traffic-calming features.

Effect of calcium supplementation on cycling performance in 10 mile time trials.

by Rehana Jawadwala

 Jawadwala, R., Atkins, S., Lowe, N. and Robinson, P. (2011) Effect of calcium supplementation on cycling performance in 10 mile time trials. FASEB J March 17, 2011 25:608.1 (Experimental Biology Annual Conference, Washington DC, USA)

The objective of the current research was to investigate the effect of calcium supplementation on cycling performance.... more The objective of the current research was to investigate the effect of calcium supplementation on cycling performance. Ten male well-trained cyclists (mean ± SD; age 35.8 ± 11.3 yrs, stature 176 ± 7.1 cm, body mass 73.8 ± 9.3 kg, VO2peak 4.59 ± 0.8 l/min, Wpeak 350 ± 42 W) were recruited. Participants were tested using a randomised, single blind, test-retest intervention trial design. Each participant was given 1000 mg/d of elemental calcium (citrate) in tablet form for 4 weeks. They undertook a 10 mile bicycle ergometer time trial test at baseline (10TTB) and end of the intervention period (10TTC). A stationary electromagnetically braked ergometer (SRM ergometer; Schoberer Rad Messtechnik, Jülich, Germany) was used. Gas exchange was measured continuously using an online breath-by-breath Spirometer (Metalyzer II; Cortex, Leipzig, Germany). There was a drop in time-to-finish (–0.20 ± 0.11 mins; P = 0.17, d = –0.18) and mean power output increased (7.22 ± 0.65 W; P = 0.02, d = 0.21) in 10TTC compared to 10TTB. Both mean gross efficiency (1.19 ± 0.40%; P = 0.001, d = 1.09) and mean economy (4.15 ± 1.41 W/l; P = 0.001, d = 0.82) improved significantly during the 10TTC compared to 10TTB. Increased dietary calcium may have improved performance via changes in intracellular calcium [Ca2+]i levels. Efficiency may have improved due to a combination of better utilisation of metabolic substrates and attenuated skeletal muscle fatigue.

Effect of calcium supplementation on cycling performance in 25 mile time trials.

by Rehana Jawadwala

Jawadwala, R., Atkins, S., Lowe, N. and Robinson, P. (2010) Effect of calcium supplementation on cycling performance in 25 mile time trials. Journal of Sports sciences (BASES Annual Conference, Glasgow, UK)