i think the energy consumed by vertical jumping is too high when compared to the "2000 calorie a day requirement".
Say i weigh 60kg, i have studied my centre of mass from a video with wall markings, avg 50cm at peak jump vs standing straight.
Energy= 60*9.81*0.5= 294.3/ 4.18= 70.34 calories
And if friction, getting lower before the jump and landing energy is factored in, the resulting energy from one jump is atleast 140 calories.
Q1. So this means that i burn 2000 cal from just 14 jumps? I did saw websites showing energy burned from sports in an hour, and they were like 900 cal at most.
Q2. What would be close approximation of exergy burned than simply >140 cal ?
(That should explain why i cannot gain weight at all? because i do jumps as my only exercise because i need to save time. Im thin and trying to gain weight but cant.)