Running Power Calculation

Running and sprinting ability is usually recorded as a speed or time over a set distance, and usually this would be the best measure of power output.

A 100 kg person running 40 meters in 6 seconds is very different to a 70 kg running the same distance in the same time. Momentum is greater for the heavier person, and in contact sports this would be advantageous, however in other sports this would mean that stopping and changing direction would be more difficult.

Calculating power output for human running is complex. Here is a table of power output for human walking (0 to 4 mph) and running (5+ mph), for a 60 kg person. This is an estimation, and does not take into account variations in differences in running efficiency. For runners of different weight thevalues will also be different.

 Velocity (mph) Velocity (meters/min) Oxygen Consumption (mL/min) Power (kcal/min) Power (watts) 0 0 210 1.01 70 2 54 530 2.57 179 3 81 700 3.35 233 4 107 850 4.11 286 5 134 1820 8.76 610 6 161 2140 10.3 719 7.5 201 2630 12.7 883 10 268 3430 16.5 1150 15 403 5050 24.3 1690

Figures are calculated from equations in: American College of Sports Medicine. Guidelines for Exercise Testing and Prescription, 4th edition. Philadelphia: Lea & Febiger, 1991, p. 285-300.

Running Uphill

If you are running on trails with many uphill and downhill sections, then power output and energy expenditure will change.