Back in my June 5, 2015 post<\/a> I calculated that, according to the exercise bike, I can produce 1046.5W for twenty minutes.<\/p>\n What if I do a skipping workout? Let’s compare the power used skipping to riding the bike.<\/p>\n I’d say I do about 2 jumps per second, and that each one is 1.5cm in height. Absorbing the shock coming down is about the same as jumping up, so let’s imagine the equivalent of 4 jumps per second of 1.5cm, giving a change in height of 6cm (0.06m) per second. My mass is 82kg. To find the work done, we use<\/p>\n Work = Force x distance = mass x gravitiational constant x height<\/b><\/p>\n For this specific case we have<\/p>\n Work = 82×9.8×0.06 \u2248 48 Joules of work done every second. A rate of 48J\/s means 48W.<\/p>\n So, skipping, my percent exertion is 48\/1046.5 \u2248 4.6% compared to cycling; I knew it would be a lot less. Yet, skipping will definitely continue to improve my condition. Therefore, an exertion rate of around five percent seems adequate for progress in a fitness regime.<\/p>\n I’ll be talking more about exercise and fitness in future posts:)<\/p>\n