Wearing the COMPRESSPORT® R2 during the cycling part in IM triathlon – to improve aerodynamics and accelerate the recovery during the transition periods! Besides preventing injuries (see the JUNE COMPRESSPORT® Monthly News), wearing the COMPRESSPORT® R2 during the cycling part in IM triathlon is mainly based on aerodynamics and venous return improvement! Explanations…
COMPRESSPORT® R2 improves the venous return until ≈160 W in cycling !
The COMPRESSPORT® R2, pressing the veins, improves the venous blood return towards the heart and therefore the overall blood circulation – only when the calf muscles are relatively inactive (see Monthly News of April and May). That is the case completely at rest, trampling, walking but also until ≈160 W in cycling (figure 1)! When the intensities progress, the calf muscles press sufficiently on the veins to optimize the venous return .
Practical applications: accelerated recovery during the transition periods!
Increasing the blood circulation until ≈160 W: really during the transition periods (downhill for example), the COMPRESSPORT® R2 may be an effective strategy to alleviate symptoms associated with fatigue. Indeed, the R2 are useful to re-oxygenate fatigued muscles (+10 %) and eliminate more quickly the toxins (-10 %), therefore favoring the recovery and preventing the fatigue.
The R2 also improves aerodynamics!
The R2 is also designed (compression, fibre, seamless) to improve the aerodynamics. Wind tunnel tests (see picture: Aero Concept-Engineering) show a gain until 5 W at 4km/h.
This represents a substantial economy of 0.5 sec per km or 1 min 30 sec for the total distance of the IRONMAN cycling part!
1. Boucourt B, Bouhaddi M, Mourot L, Tordi N and Ménétrier A. Changes in tissue oxygen saturation with calf compression sleeves – before, during and after a cycling exercise. J Sports M Phys Fitness (in press).
About the Author
Dr. Arnaud M. comes from Besançon in France. He has a PhD in Life and Health Sciences and works at the University of Franche-Comté in Besançon (EA 3920, Exercise Performance Health Innovation Laboratory). Arnaud is also the Scientist Manager for COMPRESSPORT® International. You can contact him at firstname.lastname@example.org