Surprisingly, Usain Bolt, the fastest sprinter in the world, would only manage to generate 12 Watts of energy during his 200m sprint. This is the equivalent to just ten calories, and would only manage to power a lightbulb for just over 11 minutes. On the other end of the scale, a road cyclist would generate a staggering 5,076 Watts during their event, with a total calorie burn of 4,360 which could power the same lightbulb for 3 days, 12 hours and 36 minutes.

Infographic by: www.gbenergysupply.co.uk