I would like to get a handle on human Wattage under various conditions. it would be great to compare theory calculations of say running up stairs with how much ACTUAL wattage it takes.....just for physics fun. the only common bench top measurement device I can think of is those wrist-watch type exercise meters. my guess is they read your pulse and get a heart rate and maybe calculate the mass of blood being pushed around your body and come up with Watts, just a guess? anyone know how these devices actually calculate power???