Saturday, October 12, 2019

More Running Uphill

Last post we looked at the energy cost of running uphill at a certain pace.  This time we’ll flip that around and look at the uphill pace that could be maintained for a fixed amount of power.  We’ll also look at the total power required as a function of pace, grade, and weight.
This figure shows the pace that could be maintained, as a function of weight for 3 different grades and 2 total mechanical power outputs.  

Notice that there are some combinations that are never available.  For example, if you weigh more than 60 kg, and have 200 W available, there is no pace slow enough to climb a 6% grade.  You’d either need more power, or less weight.

This figure flips things again, and shows the total power required as a function of pace for 3 different grades and 2 different weights. 


It is the same information as we’ve seen last post, and in the other figure today, just presented from a different perspective. 

Remember that the base energy use was chosen pretty arbitrarily, so these figures are good for internal comparisons, but may not be accurate in absolute terms.

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