Gross Efficiency and Cycling Economy Are Higher in the Field as Compared with on an Axiom Stationary Ergometer

in Journal of Applied Biomechanics
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  • 1 Université de Reims-Champagne-Ardenne
  • 2 Victoria University,, Melbourne
  • 3 Université Via Domitia de Perpignan
  • 4 Université de Franche-Comté
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This study was designed to examine the biomechanical and physiological responses between cycling on the Axiom stationary ergometer (Axiom, Elite, Fontaniva, Italy) vs. field conditions for both uphill and level ground cycling. Nine cyclists performed cycling bouts in the laboratory on an Axiom stationary ergometer and on their personal road bikes in actual road cycling conditions in the field with three pedaling cadences during uphill and level cycling. Gross efficiency and cycling economy were lower (–10%) for the Axiom stationary ergometer compared with the field. The preferred pedaling cadence was higher for the Axiom stationary ergometer conditions compared with the field conditions only for uphill cycling. Our data suggests that simulated cycling using the Axiom stationary ergometer differs from actual cycling in the field. These results should be taken into account notably for improving the precision of the model of cycling performance, and when it is necessary to compare two cycling test conditions (field/laboratory, using different ergometers).

William M. Bertucci (Corresponding Author) is with the Labo-ratoire d’Ingénierie et Sciences des Matériaux (EA 4695), UFR STAPS, Université de Reims-Champagne-Ardenne, Reims, France. Andrew C. Betik is with Institute of Sport, Exercise and Active Living (ISEAL), Victoria University, Melbourne, Australia. Sebastien Duc is with the Laboratoire Sport, Santé et Altitude, Département STAPS de Font Romeu, Université Via Domitia de Perpignan, France. Frederic Grappe is with Laboratoire C3S (EA 4660) – Département Sport-Santé, UPFR-SPORTS, Université de Franche Comté, Besançon, France.