Rick, "There is no difference between the aerobic efficiency of upright versus recumbent for equally trained individuals - many studies prove this and it is not difficult for anyone to test by making a visit to a gym - most gyms have both recumbent and upright ergometers with HR monitors. Highly reclined position has a distinct advantage for long duration as the body is primarily supported on the back rather than a torture wedge under the pelvis."
That may be technically true for "aerobic efficiency" but an upright pedaler who utilizes his arms and torso is able to generate much more watts for an extended period of time compared to a recumbent pedaler who is only using his legs, generally 20 to 30% more. Recumbent bikes are a joke in hill climbing, on the other hand they are incredibly fast going down, but their average speed is always slower. It is a different story on the flats where drag dominates, there the recumbent has the decided edge.
Rick, "Any individual working at 150W needs to be well ventilated and maintain hydration. It also helps to stay cool, which is easy when on the water by making use of water cooling. For long duration, protection from sunburn is also a consideration. Preferred pedal position is recumbent on an open, maybe shaded deck rather than in a hull."
That is all true where it is hot, but it is not hot in the R2AK.
The big advantage of pedaling in the R2AK is in the mornings when there is no wind and it can make a huge difference especially in catching a current. Most of the time however I don't think pedaling would be worth the effort. Two knots is just painfully slow. Better to have a boat that can ghost in light air..... and take off when the wind picks up.
Talador
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Posted by: taladorwood@yahoo.com.au
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