How many calories do you consume calories for 30 minutes?
Please do not think that 78.7 kJ of energy consumption is negligible, if you go downstairs 5 times a day, it will consume 391 kJ, this exercise to play 10 minutes of football (football consumption per minute consumption of 37.25 kJ energy) , Or run 13 minutes off-road (cross-country run per minute consumption of 29.7 kJ) even more. If the number of climbing stairs every day more, or are climbing higher, of course, energy consumption will be more. According to the daily up and down the stairs consumption of 37.25 kJ calculation, 1 month can consume about 378 grams of fat, and consumption of excess fat at the same time, will also get a strong muscle and robust cardiopulmonary, long-term, the body will be too Full and become extraordinarily slim.
Simple calculation can be seen to climb the stairs to lose weight unusual. Assuming that a person weighing 60 kilograms lives on the fifth floor, if the height of each floor is 4 meters (the vertical height from the ground), how much energy will it take to go up and down every time? 60 X 4 = 240 kg of power, five floors is to work 240 × 5 = 1200 kg m.
However, the human body when the muscle contraction of the mechanical efficiency is very low, only about 20% of the work (such as the body to raise or move a certain distance), another 80% of the energy into all the heat, Let go. In this way, 1200 kg of rice must be divided by 20% mechanical efficiency, so the workload of the upstairs is:
?????60 × 4 × 5 ÷ 20% = 6000 kg
??????Downstairs workload was calculated, about upstairs 1/3, so the workload of the downstairs is:
??????6000 ÷ 3 = 2000 kg m
??????Up and down to add up to:
??????6000 + 2000 = 8000 kg
??????Because each work for 428 kilograms of energy to consume 4.184 kJ (1 kcal) of energy, so the workload converted into energy card price only by the workload divided by 428 can be obtained up and down the floor once the energy consumption :
??????8000 ÷ 428 × 4.184 = 78.2 kJ
